
# 对象存储服务 OBS
云服务在IAM预置了常用的权限，称为系统身份策略。如果IAM系统身份策略无法满足授权要求，管理员可以根据各服务支持的授权项，创建IAM自定义身份策略来进行精细的访问控制，IAM自定义身份策略是对系统身份策略的扩展和补充。
除IAM服务外，[Organizations](https://support.huaweicloud.com/productdesc-organizations/org_01_0011.html)服务中的[服务控制策略](https://support.huaweicloud.com/usermanual-organizations/org_03_0065.html)（Service Control Policy，以下简称SCP）也可以使用这些授权项元素设置访问控制策略。
SCP不直接进行授权，只划定权限边界。将SCP绑定到组织单元或者成员账号时，并没有直接对组织单元或成员账号授予操作权限，而是规定了成员账号或组织单元包含的成员账号的授权范围。IAM身份策略授予权限的有效性受SCP限制，只有在SCP允许范围内的权限才能生效。
IAM服务与Organizations服务在使用这些元素进行访问控制时，存在着一些区别，详情请参见：[IAM服务与Organizations服务权限访问控制的区别](https://support.huaweicloud.com/organizations_faq/org_06_0004.html)。
本章节介绍IAM服务身份策略授权场景中自定义身份策略和组织服务中SCP使用的元素，这些元素包含了操作（Action）、资源（Resource）和条件（Condition）。
- 如何使用这些元素编辑IAM自定义身份策略，请参考[创建自定义身份策略](https://support.huaweicloud.com/usermanual-iam5/iam_01_0917.html)。
- 如何使用这些元素编辑SCP自定义策略，请参考[创建SCP](https://support.huaweicloud.com/usermanual-organizations/org_03_0035.html)。
#### 操作（Action）
操作（Action）即为身份策略中支持的授权项。
- "**访问级别**"列描述如何对操作进行分类（List、Read和Write等）。此分类可帮助您了解在身份策略中相应操作对应的访问级别。
- "**资源类型** "列指每个操作是否支持资源级权限。
  - 资源类型支持通配符号\*表示所有。如果此列没有值（-），则必须在身份策略语句的Resource元素中指定所有资源类型（"\*"）。
  
  - 如果该列包含资源类型，则必须在具有该操作的语句中指定该资源的URN。
  
  - 资源类型列中必需资源在表中用星号（\*）标识，表示使用此操作必须指定该资源类型。
  
  
  关于OBS定义的资源类型的详细信息请参见[资源类型（Resource）]。
  
- "**条件键** "列包括了可以在身份策略语句的Condition元素中支持指定的键值。
  - 如果该授权项资源类型列存在值，则表示条件键仅对列举的资源类型生效。
  
  - 如果该授权项资源类型列没有值（-），则表示条件键对整个授权项生效。
  
  - 如果此列条件键没有值（-），表示此操作不支持指定条件键。
  
  
  关于OBS定义的条件键的详细信息请参见[条件（Condition）]。
  
- "**别名** "列包括了可以在身份策略中配置的策略授权项。通过这些授权项，可以控制支持策略授权的API访问。详细信息请参见[身份策略兼容性说明](https://support.huaweicloud.com/iam5_faq/iam_01_1103.html)。
您可以在身份策略语句的Action元素中指定以下OBS的相关操作。
表1OBS支持的授权项 
| 授权项                                              | 描述                         | 访问级别                  | 资源类型（\*为必须） | 条件键                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | 别名 |
|:---|:---|:---|:---|:---|:---|
| obs:object:abortMultipartUpload                  | 授予取消多段上传任务的权限。             | Write                 | object \*   | [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:object:abortMultipartUpload                  | 授予取消多段上传任务的权限。             | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:object:deleteObject                          | 授予删除非指定版本对象的权限。            | Write                 | object \*   | [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:object:deleteObject                          | 授予删除非指定版本对象的权限。            | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | -  |
| obs:object:deleteObjectTagging                   | 授予删除对象标签的权限。               | Tagging               | object \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | -  |
| obs:object:deleteObjectTagging                   | 授予删除对象标签的权限。               | Tagging               | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | -  |
| obs:object:deleteObjectVersionTagging            | 授予删除指定对象版本标签的权限。           | Tagging               | object \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [obs:versionId]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:object:deleteObjectVersionTagging            | 授予删除指定对象版本标签的权限。           | Tagging               | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | -  |
| obs:object:deleteObjectVersion                   | 授予删除指定版本对象的权限。             | Write                 | object \*   | - [obs:versionId]  - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | -  |
| obs:object:deleteObjectVersion                   | 授予删除指定版本对象的权限。             | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:object:getObject                             | 授予下载非指定版本对象的权限。            | Read                  | object \*   | [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:object:getObject                             | 授予下载非指定版本对象的权限。            | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:object:getObjectTagging                      | 授予下载对象标签的权限。               | Read                  | object \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:object:getObjectTagging                      | 授予下载对象标签的权限。               | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | -  |
| obs:object:getObjectVersionTagging               | 授予下载指定对象版本标签的权限。           | Read                  | object \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [obs:versionId]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | -  |
| obs:object:getObjectVersionTagging               | 授予下载指定对象版本标签的权限。           | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | -  |
| obs:object:getObjectAcl                          | 授予不指定版本获取对象的ACL的权限。        | Read                  | object \*   | [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:object:getObjectAcl                          | 授予不指定版本获取对象的ACL的权限。        | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:object:getObjectRetention                    | 授予获取对象保留配置的权限。             | Read                  | object \*   | [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:object:getObjectRetention                    | 授予获取对象保留配置的权限。             | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | -  |
| obs:object:getObjectVersion                      | 授予下载指定版本对象的权限。             | Read                  | object \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [obs:versionId]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:object:getObjectVersion                      | 授予下载指定版本对象的权限。             | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | -  |
| obs:object:getObjectVersionAcl                   | 授予获取指定版本对象的ACL的权限。         | Read                  | object \*   | - [obs:versionId]  - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | -  |
| obs:object:getObjectVersionAcl                   | 授予获取指定版本对象的ACL的权限。         | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | -  |
| obs:object:listMultipartUploadParts              | 授予获取一个多段上传任务所属的所有段信息的权限。   | List                  | object \*   | [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:object:listMultipartUploadParts              | 授予获取一个多段上传任务所属的所有段信息的权限。   | List                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | -  |
| obs:object:modifyObjectMetadata                  | 授予修改、删除或添加桶中已经上传的对象元数据的权限。 | Write                 | object \*   | [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:object:modifyObjectMetadata                  | 授予修改、删除或添加桶中已经上传的对象元数据的权限。 | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:object:putObject                             | 授予上传对象的权限。                 | Write                 | object \*   | [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:object:putObject                             | 授予上传对象的权限。                 | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]  - [obs:x-obs-acl]  - [obs:x-obs-copy-source]  - [obs:x-obs-metadata-directive]  - [obs:x-obs-server-side-encryption]   | -  |
| obs:object:putObjectTagging                      | 授予上传对象标签的权限。               | Tagging               | object \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | -  |
| obs:object:putObjectTagging                      | 授予上传对象标签的权限。               | Tagging               | -           | - [g:RequestTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:TagKeys](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                              | -  |
| obs:object:putObjectVersionTagging               | 授予上传指定对象版本标签的权限。           | Tagging               | object \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [obs:versionId]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | -  |
| obs:object:putObjectVersionTagging               | 授予上传指定对象版本标签的权限。           | Tagging               | -           | - [g:RequestTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:TagKeys](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                              | -  |
| obs:object:putObjectAcl                          | 授予设置或修改非指定版本对象ACL的权限。      | Permission_management | object \*   | [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:object:putObjectAcl                          | 授予设置或修改非指定版本对象ACL的权限。      | Permission_management | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]  - [obs:x-obs-acl]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | -  |
| obs:object:putObjectRetention                    | 授予设置对象保留配置的权限。             | Write                 | object \*   | [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:object:putObjectRetention                    | 授予设置对象保留配置的权限。             | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | -  |
| obs:object:putObjectVersionAcl                   | 授予设置或修改指定版本对象ACL的权限。       | Permission_management | object \*   | - [obs:versionId]  - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:object:putObjectVersionAcl                   | 授予设置或修改指定版本对象ACL的权限。       | Permission_management | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]  - [obs:x-obs-acl]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | -  |
| obs:object:restoreObject                         | 授予恢复归档或深度归档对象的权限。          | Write                 | object \*   | [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:object:restoreObject                         | 授予恢复归档或深度归档对象的权限。          | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:bucket:createBucket                          | 授予创建新桶的权限。                 | Write                 | bucket \*   | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | -  |
| obs:bucket:createBucket                          | 授予创建新桶的权限。                 | Write                 | -           | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]  - [obs:BucketEncrypted]  - [obs:x-obs-acl]                                                                                                                                                                                                                         | -  |
| obs:bucket:deleteBucket                          | 授予删除桶的权限。                  | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | -  |
| obs:bucket:deleteBucket                          | 授予删除桶的权限。                  | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | -  |
| obs:bucket:deleteBucketCustomDomainConfiguration | 授予删除桶的自定义域名的权限。            | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | -  |
| obs:bucket:deleteBucketCustomDomainConfiguration | 授予删除桶的自定义域名的权限。            | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:bucket:deleteBucketInventoryConfiguration    | 授予删除桶的清单配置的权限。             | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | -  |
| obs:bucket:deleteBucketInventoryConfiguration    | 授予删除桶的清单配置的权限。             | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | -  |
| obs:bucket:deleteBucketPolicy                    | 授予删除桶策略的权限。                | Permission_management | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | -  |
| obs:bucket:deleteBucketPolicy                    | 授予删除桶策略的权限。                | Permission_management | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:deleteBucketTagging                   | 授予删除桶标签的权限。                | Tagging               | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:bucket:deleteBucketTagging                   | 授予删除桶标签的权限。                | Tagging               | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | -  |
| obs:bucket:deleteBucketWebsite                   | 授予删除桶的网站配置信息的权限。           | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:bucket:deleteBucketWebsite                   | 授予删除桶的网站配置信息的权限。           | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | -  |
| obs:bucket:deleteDirectColdAccessConfiguration   | 授予删除桶的归档直读配置信息的权限。         | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | -  |
| obs:bucket:deleteDirectColdAccessConfiguration   | 授予删除桶的归档直读配置信息的权限。         | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | -  |
| obs:bucket:deleteReplicationConfiguration        | 授予删除桶的复制配置的权限。             | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | -  |
| obs:bucket:deleteReplicationConfiguration        | 授予删除桶的复制配置的权限。             | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | -  |
| obs:bucket:getBucketAcl                          | 授予获取桶ACL的权限。               | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | -  |
| obs:bucket:getBucketAcl                          | 授予获取桶ACL的权限。               | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:bucket:getBucketObjectLockConfiguration      | 授予查询桶WORM默认保护策略和保护期限的权限。   | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | -  |
| obs:bucket:getBucketObjectLockConfiguration      | 授予查询桶WORM默认保护策略和保护期限的权限。   | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | -  |
| obs:bucket:getBucketCORS                         | 授予查询桶的CORS配置的权限。           | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | -  |
| obs:bucket:getBucketCORS                         | 授予查询桶的CORS配置的权限。           | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:getBucketCustomDomainConfiguration    | 授予查询桶的自定义域名的权限。            | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:bucket:getBucketCustomDomainConfiguration    | 授予查询桶的自定义域名的权限。            | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:bucket:getBucketInventoryConfiguration       | 授予查询桶的清单配置的权限。             | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | -  |
| obs:bucket:getBucketInventoryConfiguration       | 授予查询桶的清单配置的权限。             | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | -  |
| obs:bucket:getBucketLocation                     | 授予查询桶区域位置信息的权限。            | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | -  |
| obs:bucket:getBucketLocation                     | 授予查询桶区域位置信息的权限。            | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:bucket:getBucketLogging                      | 授予查询桶的日志管理配置的权限。           | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:getBucketLogging                      | 授予查询桶的日志管理配置的权限。           | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | -  |
| obs:bucket:getBucketPolicy                       | 授予获取桶策略的权限。                | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:bucket:getBucketPolicy                       | 授予获取桶策略的权限。                | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | -  |
| obs:bucket:getBucketQuota                        | 授予获取桶空间配额。                 | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:getBucketQuota                        | 授予获取桶空间配额。                 | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | -  |
| obs:bucket:getBucketStorage                      | 授予查询桶对象个数及对象占用空间的权限。       | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:getBucketStorage                      | 授予查询桶对象个数及对象占用空间的权限。       | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:bucket:getBucketStoragePolicy                | 授予获取桶的默认存储类型信息。            | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:getBucketStoragePolicy                | 授予获取桶的默认存储类型信息。            | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:getBucketTagging                      | 授予获取桶的标签的权限。               | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:bucket:getBucketTagging                      | 授予获取桶的标签的权限。               | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:bucket:getBucketVersioning                   | 授予获取桶的多版本状态的权限。            | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:bucket:getBucketVersioning                   | 授予获取桶的多版本状态的权限。            | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | -  |
| obs:bucket:getBucketWebsite                      | 授予获取桶设置的网站配置的权限。           | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | -  |
| obs:bucket:getBucketWebsite                      | 授予获取桶设置的网站配置的权限。           | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:bucket:getDirectColdAccessConfiguration      | 授予获取指定桶的归档对象状态的权限。         | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | -  |
| obs:bucket:getDirectColdAccessConfiguration      | 授予获取指定桶的归档对象状态的权限。         | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:bucket:getEncryptionConfiguration            | 授予获取桶的加密配置的权限。             | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:getEncryptionConfiguration            | 授予获取桶的加密配置的权限。             | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:bucket:getLifecycleConfiguration             | 授予获取桶的生命周期配置的权限。           | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | -  |
| obs:bucket:getLifecycleConfiguration             | 授予获取桶的生命周期配置的权限。           | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | -  |
| obs:bucket:getReplicationConfiguration           | 授予获取桶的跨区域复制配置的权限。          | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | -  |
| obs:bucket:getReplicationConfiguration           | 授予获取桶的跨区域复制配置的权限。          | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | -  |
| obs:bucket:headBucket                            | 授予获取桶元数据的权限。               | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | -  |
| obs:bucket:headBucket                            | 授予获取桶元数据的权限。               | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | -  |
| obs:bucket:listAllMyBuckets                      | 授予查询创建的桶列表的权限。             | List                  | bucket \*   | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | -  |
| obs:bucket:listAllMyBuckets                      | 授予查询创建的桶列表的权限。             | List                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | -  |
| obs:bucket:listBucket                            | 授予获取桶内对象列表的权限。             | List                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:bucket:listBucket                            | 授予获取桶内对象列表的权限。             | List                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]  - [obs:prefix]  - [obs:delimiter]  - [obs:max-keys]                                                                                                                                                                                                                                                   | -  |
| obs:bucket:listBucketMultipartUploads            | 授予列举桶中已初始化多段任务的权限。         | List                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | -  |
| obs:bucket:listBucketMultipartUploads            | 授予列举桶中已初始化多段任务的权限。         | List                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | -  |
| obs:bucket:listBucketVersions                    | 授予获取桶内多版本对象列表的权限。          | List                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | -  |
| obs:bucket:listBucketVersions                    | 授予获取桶内多版本对象列表的权限。          | List                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]  - [obs:prefix]  - [obs:delimiter]  - [obs:max-keys]                                                                                                                                                                                                                                            | -  |
| obs:bucket:putBucketAcl                          | 授予设置桶ACL的权限。               | Permission_management | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | -  |
| obs:bucket:putBucketAcl                          | 授予设置桶ACL的权限。               | Permission_management | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]  - [obs:x-obs-acl]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | -  |
| obs:bucket:putBucketCORS                         | 授予设置桶的CORS配置的权限。           | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:bucket:putBucketCORS                         | 授予设置桶的CORS配置的权限。           | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | -  |
| obs:bucket:putBucketCustomDomainConfiguration    | 授予设置桶的自定义域名的权限。            | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | -  |
| obs:bucket:putBucketCustomDomainConfiguration    | 授予设置桶的自定义域名的权限。            | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | -  |
| obs:bucket:putBucketObjectLockConfiguration      | 授予设置桶级默认WORM策略的权限。         | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | -  |
| obs:bucket:putBucketObjectLockConfiguration      | 授予设置桶级默认WORM策略的权限。         | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | -  |
| obs:bucket:putBucketInventoryConfiguration       | 授予设置桶清单规则的权限。              | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | -  |
| obs:bucket:putBucketInventoryConfiguration       | 授予设置桶清单规则的权限。              | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:bucket:putBucketLogging                      | 授予设置桶的日志管理配置的权限。           | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | -  |
| obs:bucket:putBucketLogging                      | 授予设置桶的日志管理配置的权限。           | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:bucket:putBucketPolicy                       | 授予设置桶策略的权限。                | Permission_management | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | -  |
| obs:bucket:putBucketPolicy                       | 授予设置桶策略的权限。                | Permission_management | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:putBucketQuota                        | 授予设置桶配额的权限。                | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:bucket:putBucketQuota                        | 授予设置桶配额的权限。                | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:putBucketStoragePolicy                | 授予设置桶默认存储类型的权限。            | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | -  |
| obs:bucket:putBucketStoragePolicy                | 授予设置桶默认存储类型的权限。            | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:bucket:putBucketTagging                      | 授予设置桶标签的权限。                | Tagging               | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | -  |
| obs:bucket:putBucketTagging                      | 授予设置桶标签的权限。                | Tagging               | -           | - [g:RequestTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:TagKeys](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                 | -  |
| obs:bucket:putBucketVersioning                   | 授予设置桶的多版本状态的权限。            | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | -  |
| obs:bucket:putBucketVersioning                   | 授予设置桶的多版本状态的权限。            | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | -  |
| obs:bucket:putBucketWebsite                      | 授予设置桶的网站配置的权限。             | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:bucket:putBucketWebsite                      | 授予设置桶的网站配置的权限。             | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | -  |
| obs:bucket:putDirectColdAccessConfiguration      | 授予设置桶归档对象直读策略的权限。          | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | -  |
| obs:bucket:putDirectColdAccessConfiguration      | 授予设置桶归档对象直读策略的权限。          | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:bucket:putEncryptionConfiguration            | 授予设置桶的加密配置的权限。             | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | -  |
| obs:bucket:putEncryptionConfiguration            | 授予设置桶的加密配置的权限。             | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]  - [obs:BucketEncrypted]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | -  |
| obs:bucket:putLifecycleConfiguration             | 授予设置桶的生命周期配置的权限。           | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | -  |
| obs:bucket:putLifecycleConfiguration             | 授予设置桶的生命周期配置的权限。           | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | -  |
| obs:bucket:putReplicationConfiguration           | 授予设置桶的跨区域复制配置的权限。          | Write                 | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | -  |
| obs:bucket:putReplicationConfiguration           | 授予设置桶的跨区域复制配置的权限。          | Write                 | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | -  |
| obs:bucket:getBucketPublicAccessBlock            | 授予获取桶BPA配置的权限。             | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | -  |
| obs:bucket:getBucketPublicAccessBlock            | 授予获取桶BPA配置的权限。             | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:putBucketPublicAccessBlock            | 授予设置桶BPA配置的权限。             | Permission_management | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | -  |
| obs:bucket:putBucketPublicAccessBlock            | 授予设置桶BPA配置的权限。             | Permission_management | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:bucket:deleteBucketPublicAccessBlock         | 授予删除桶BPA配置的权限。             | Permission_management | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | -  |
| obs:bucket:deleteBucketPublicAccessBlock         | 授予删除桶BPA配置的权限。             | Permission_management | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | -  |
| obs:bucket:getBucketPolicyPublicStatus           | 授予获取桶策略公开状态的权限。            | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -  |
| obs:bucket:getBucketPolicyPublicStatus           | 授予获取桶策略公开状态的权限。            | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | -  |
| obs:bucket:getBucketPublicStatus                 | 授予获取桶公开状态的权限。              | Read                  | bucket \*   | - [g:EnterpriseProjectId](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)  - [g:ResourceTag/\<tag-key\>](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | -  |
| obs:bucket:getBucketPublicStatus                 | 授予获取桶公开状态的权限。              | Read                  | -           | - [obs:EpochTime]  - [obs:SourceIp]  - [obs:TlsVersion]  - [obs:CustomDomain]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | -  |
   
OBS的API通常对应着一个或多个授权项。[表2]展示了API与授权项的关系，以及该API需要依赖的授权项。
 表2API与授权项的关系 
| API                                                                         | 对应的授权项                                           | 依赖的授权项                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|:---|:---|:---|
| PUT /?replication                                                           | obs:bucket:putReplicationConfiguration           | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?replication                                                           | obs:bucket:getReplicationConfiguration           | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /?replication                                                        | obs:bucket:deleteReplicationConfiguration        | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /ObjectName?acl                                                         | obs:object:putObjectAcl                          | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /ObjectName?acl                                                         | obs:object:putObjectVersionAcl                   | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /ObjectName?acl                                                         | obs:object:getObjectAcl                          | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /ObjectName?acl                                                         | obs:object:getObjectVersionAcl                   | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /ObjectName?metadata                                                    | obs:object:modifyObjectMetadata                  | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| POST /                                                                      | obs:object:putObject                             | - kms:cmk:create  - kms:cmk:list  - kms:cmk:createDataKey  - functiongraph:function:invokeAsync  - functiongraph:workflow:invoke  - smn:topic:publish                                                                                                                                                                                                                                                                                            |
| PUT /ObjectName                                                             | obs:object:putObject                             | - kms:cmk:create  - kms:cmk:list  - kms:cmk:createDataKey  - functiongraph:function:invokeAsync  - functiongraph:workflow:invoke  - smn:topic:publish                                                                                                                                                                                                                                                                                                 |
| PUT /objectname?tagging\&versionId=versionid                                | obs:object:putObjectTagging                      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /objectName?tagging\&versionId                                          | obs:object:putObjectVersionTagging               | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /ObjectName                                                             | obs:object:getObject                             | - kms:cmk:create  - kms:cmk:list  - kms:cmk:decryptDataKey                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| GET /objectname?tagging\&versionId=versionid                                | obs:object:getObjectTagging                      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /objectName?tagging\&versionId                                          | obs:object:getObjectVersionTagging               | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /ObjectName                                                             | obs:object:getObjectVersion                      | - kms:cmk:create  - kms:cmk:list  - kms:cmk:decryptDataKey                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| HEAD /ObjectName                                                            | obs:object:getObject                             | obs:object:getObjectRetention                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| HEAD /ObjectName                                                            | obs:object:getObjectVersion                      | obs:object:getObjectRetention                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| DELETE /ObjectName                                                          | obs:object:deleteObject                          | - functiongraph:function:invokeAsync  - functiongraph:workflow:invoke  - smn:topic:publish                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| DELETE /objectname?tagging\&versionId=versionid                             | obs:object:deleteObjectTagging                   | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /objectName?tagging\&versionId                                       | obs:object:deleteObjectVersionTagging            | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /ObjectName                                                          | obs:object:deleteObjectVersion                   | - functiongraph:function:invokeAsync  - functiongraph:workflow:invoke  - smn:topic:publish                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| POST /ObjectName?uploads                                                    | obs:object:putObject                             | - kms:cmk:create  - kms:cmk:list  - kms:cmk:createDataKey                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| GET /?uploads\&max-uploads=max                                              | obs:bucket:listBucketMultipartUploads            | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /ObjectName?partNumber=partNum\&uploadId=uploadID                       | obs:object:putObject                             | - kms:cmk:createDataKey  - kms:cmk:decryptDataKey                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| GET /ObjectName?uploadId=uploadid\&max-parts=max\&part-number-marker=marker | obs:object:listMultipartUploadParts              | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /ObjectName?uploadId=uplaodID                                        | obs:object:abortMultipartUpload                  | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| POST /ObjectName?uploadId=uploadID                                          | obs:object:putObject                             | - functiongraph:function:invokeAsync  - functiongraph:workflow:invoke  - smn:topic:publish                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| PUT /?website                                                               | obs:bucket:putBucketWebsite                      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?website                                                               | obs:bucket:getBucketWebsite                      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /?website                                                            | obs:bucket:deleteBucketWebsite                   | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?cors                                                                  | obs:bucket:putBucketCORS                         | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?cors                                                                  | obs:bucket:getBucketCORS                         | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /?cors                                                               | obs:bucket:putBucketCORS                         | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?directcoldaccess                                                      | obs:bucket:putDirectColdAccessConfiguration      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?directcoldaccess                                                      | obs:bucket:getDirectColdAccessConfiguration      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /?directcoldaccess                                                   | obs:bucket:deleteDirectColdAccessConfiguration   | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| POST /ObjectName?restore\&versionId=VersionID                               | obs:object:restoreObject                         | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?quota                                                                 | obs:bucket:putBucketQuota                        | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?quota                                                                 | obs:bucket:getBucketQuota                        | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?lifecycle                                                             | obs:bucket:putLifecycleConfiguration             | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /?lifecycle                                                          | obs:bucket:putLifecycleConfiguration             | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?lifecycle                                                             | obs:bucket:getLifecycleConfiguration             | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?acl                                                                   | obs:bucket:putBucketAcl                          | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?acl                                                                   | obs:bucket:getBucketAcl                          | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?logging                                                               | obs:bucket:putBucketLogging                      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?logging                                                               | obs:bucket:getBucketLogging                      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?tagging                                                               | obs:bucket:putBucketTagging                      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?tagging                                                               | obs:bucket:getBucketTagging                      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /?tagging                                                            | obs:bucket:deleteBucketTagging                   | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?policy                                                                | obs:bucket:putBucketPolicy                       | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?policy                                                                | obs:bucket:getBucketPolicy                       | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /?policy                                                             | obs:bucket:deleteBucketPolicy                    | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?storageinfo                                                           | obs:bucket:getBucketStorage                      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /                                                                       | obs:bucket:createBucket                          | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /                                                                    | obs:bucket:deleteBucket                          | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| HEAD /                                                                      | obs:bucket:headBucket                            | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /                                                                       | obs:bucket:listBucket                            | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?location                                                              | obs:bucket:getBucketLocation                     | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?versioning                                                            | obs:bucket:putBucketVersioning                   | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?versioning                                                            | obs:bucket:getBucketVersioning                   | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /                                                                       | obs:bucket:listBucketVersions                    | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?encryption                                                            | obs:bucket:putEncryptionConfiguration            | kms:cmk:get                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| GET /?encryption                                                            | obs:bucket:getEncryptionConfiguration            | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /?encryption                                                         | obs:bucket:putEncryptionConfiguration            | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?inventory\&id=configuration-id                                        | obs:bucket:putBucketInventoryConfiguration       | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?inventory\&id=configuration-id                                        | obs:bucket:getBucketInventoryConfiguration       | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?inventory                                                             | obs:bucket:getBucketInventoryConfiguration       | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /?inventory\&id=configuration-id                                     | obs:bucket:deleteBucketInventoryConfiguration    | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?storageClass                                                          | obs:bucket:putBucketStoragePolicy                | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?storageClass                                                          | obs:bucket:getBucketStoragePolicy                | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?customdomain=domainname                                               | obs:bucket:putBucketCustomDomainConfiguration    | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?customdomain                                                          | obs:bucket:getBucketCustomDomainConfiguration    | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /?customdomain=domainname                                            | obs:bucket:deleteBucketCustomDomainConfiguration | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?object-lock                                                           | obs:bucket:putBucketObjectLockConfiguration      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?object-lock                                                           | obs:bucket:getBucketObjectLockConfiguration      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /ObjectName?retention\&versionId=versionid                              | obs:object:putObjectRetention                    | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /ObjectName?partNumber=partNum\&uploadId=UploadID                       | obs:object:putObject                             | - obs:object:getObject  - kms:cmk:create  - kms:cmk:list  - kms:cmk:createDataKey  - kms:cmk:decryptDataKey                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| POST /?delete                                                               | obs:object:deleteObject                          | - functiongraph:function:invokeAsync  - functiongraph:workflow:invoke  - smn:topic:publish                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /destinationObjectName                                                  | obs:object:putObject                             | - obs:object:getObject  - kms:cmk:create  - kms:cmk:list  - kms:cmk:createDataKey  - kms:cmk:decryptDataKey  - functiongraph:function:invokeAsync  - functiongraph:workflow:invoke  - smn:topic:publish   |
| GET /                                                                       | obs:bucket:listAllMyBuckets                      | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /ObjectName?truncate\&length=Length                                     | obs:object:putObject                             | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| POST /ObjectName?append\&position=Position                                  | obs:object:putObject                             | - kms:cmk:create  - kms:cmk:list  - kms:cmk:createDataKey  - kms:cmk:decryptDataKey                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| PUT /ObjectName?modify\&position=Position                                   | obs:object:putObject                             | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| POST /ObjectName?name=Name\&rename                                          | obs:object:getObject                             | obs:object:putObject                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| GET /?publicAccessBlock                                                     | obs:bucket:getBucketPublicAccessBlock            | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| PUT /?publicAccessBlock                                                     | obs:bucket:putBucketPublicAccessBlock            | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| DELETE /?publicAccessBlock                                                  | obs:bucket:deleteBucketPublicAccessBlock         | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?policyStatus                                                          | obs:bucket:getBucketPolicyPublicStatus           | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| GET /?bucketStatus                                                          | obs:bucket:getBucketPublicStatus                 | -                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
   
 #### 资源类型（Resource）
资源类型（Resource）表示身份策略所作用的资源。如[表3]中的某些操作指定了可以在该操作指定的资源类型，则必须在具有该操作的身份策略语句中指定该资源的URN，身份策略仅作用于此资源；如未指定，Resource默认为"\*"，则身份策略将应用到所有资源。您也可以在身份策略中设置条件，从而指定资源类型。
OBS定义了以下可以在自定义身份策略的Resource元素中使用的资源类型。
 表3OBS支持的资源类型 
| 资源类型   | URN                                          |
|:---|:---|
| bucket | obs:::bucket:\<bucket-name\>                 |
| object | obs:::object:\<bucket-name\>/\<object-name\> |
   
 #### 条件（Condition）
**条件键概述**
条件（Condition）是身份策略生效的特定条件，包括[条件键](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)和[运算符](https://support.huaweicloud.com/usermanual-iam5/iam_01_1289.html#iam_01_1289__li13495143171719)。
- 条件键表示身份策略语句的Condition元素中的键值。根据适用范围，分为全局级条件键和服务级条件键。
  - 全局级条件键（前缀为g:）适用于所有操作，在鉴权过程中，云服务不需要提供用户身份信息，系统将自动获取并鉴权。详情请参见：[全局条件键](https://support.huaweicloud.com/usermanual-iam5/iam_01_1287.html)。
  
  - 服务级条件键（前缀通常为服务缩写，如obs:）仅适用于对应服务的操作，详情请参见[表4]。
  
  - 单值/多值表示API调用时请求中与条件关联的值数。单值条件键在API调用时的请求中最多包含一个值，多值条件键在API调用时请求可以包含多个值。例如：g:SourceVpce是单值条件键，表示仅允许通过某个VPC终端节点发起请求访问某资源，一个请求最多包含一个VPC终端节点ID值。g:TagKeys是多值条件键，表示请求中携带的所有标签的key组成的列表，当用户在调用API请求时传入标签可以传入多个值。
   
- 运算符与条件键、条件值一起构成完整的条件判断语句，当请求信息满足该条件时，身份策略才能生效。支持的运算符请参见：[运算符](https://support.huaweicloud.com/usermanual-iam5/iam_01_1289.html#iam_01_1289__li13495143171719)。
**OBS支持的服务级条件键**
OBS定义了以下可以在自定义身份策略的Condition元素中使用的条件键，您可以使用这些条件键进一步细化身份策略语句应用的条件。
 表4OBS支持的服务级条件键 
| 服务级条件键                           | 类型         | 单值/多值 | 说明                                                                                                                             |
|:---|:---|:---|:---|
| obs:versionId                    | string     | 单值    | 根据对象版本号过滤请求。                                                                                                                   |
| obs:prefix                       | string     | 单值    | 根据列举对象的前缀过滤请求。                                                                                                                 |
| obs:delimiter                    | string     | 单值    | 根据分组桶内对象的字符串过滤请求。                                                                                                              |
| obs:max-keys                     | numeric    | 单值    | 根据最大返回的对象数过滤请求，返回按照字典顺序的最多前max-keys个对象。                                                                                        |
| obs:x-obs-acl                    | string     | 单值    | 根据头域携带的ACL过滤请求, 取值范围为private\|public-read\|public-read-write\|bucketowner-read\|bucket-owner-full-control\|log-delivery-write。 |
| obs:x-obs-copy-source            | string     | 单值    | 根据复制对象时可操作的源桶名以及源对象名过滤请求, 格式为/bucketname/keyname。                                                                              |
| obs:x-obs-metadata-directive     | string     | 单值    | 根据新对象的元数据是从源对象中复制或使用请求中的元数据替换过滤请求，取值范围为COPY\|REPLACE。                                                                          |
| obs:x-obs-server-side-encryption | string     | 单值    | 根据桶中对象是否加密存储过滤请求，取值为kms。                                                                                                       |
| obs:SourceIp                     | ip_address | 单值    | 根据x-forward-for头域中的首个IP或请求发起的源IP过滤请求。                                                                                          |
| obs:EpochTime                    | numeric    | 单值    | 根据服务器接收请求的时间过滤请求，格式为从1970.01.01 00:00:00 UTC开始所经过的秒数，不考虑闰秒。                                                                    |
| obs:BucketEncrypted              | boolean    | 单值    | 根据创桶、设置桶加密、删除桶加密后桶的加密状态过滤请求。                                                                                                   |
| obs:TlsVersion                   | numeric    | 单值    | 根据客户端发起请求使用的TLS协议版本过滤请求。                                                                                                       |
| obs:CustomDomain                 | boolean    | 单值    | 根据客户端发起请求是否使用自定义域名来过滤请求。                                                                                                       |
   
