# 身份策略授权参考 云服务在IAM预置了常用授权项，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DDM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DDM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DDM的相关操作。 表1DDM支持的授权项 | 授权项（Action） | 描述 | 访问级别 | 资源类型（\*为必须） | 条件键 | 别名 | |:---|:---|:---|:---|:---|:---| | ddm::createParamGroup | 授予创建参数组的权限的权限。 | write | - | - | ddm:param:create | | ddm::deleteParamGroup | 授予删除参数组的权限。 | write | - | - | ddm:param:delete | | ddm::updateParamGroup | 授予更新参数组的权限。 | write | - | - | ddm:param:update | | ddm::applyParamGroup | 授予应用参数组的权限。 | write | - | - | ddm:param:apply | | ddm::listParamGroup | 授予查询参数组列表的权限。 | list | - | - | ddm:param:list | | ddm::copyParamGroup | 授予复制参数模板的权限的权限。 | write | - | - | ddm:param:create | | ddm::getParamGroup | 授予查询参数组的权限。 | read | - | - | ddm:param:list | | ddm:instance:deleteBackup | 授予删除备份的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:backup:delete | | ddm:instance:restore | 授予备份恢复的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:backup:restore | | ddm:instance:getBackup | 授予获取备份相关信息的权限。 | read | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:backup:get | | ddm:instance:listBackup | 授予查询实例的备份列表的权限。 | list | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:backup:list | | ddm::listBackup | 授予查询项目的备份列表的权限。 | list | - | - | ddm:backup:list | | ddm:instance:createUser | 授予创建DDM账号的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:user:create | | ddm:instance:updateUser | 授予修改DDM账号信息的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:user:modify | | ddm:instance:deleteUser | 授予删除DDM账号的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:user:delete | | ddm:instance:listUser | 授予查询DDM账号列表的权限。 | list | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:user:list | | ddm::validateWeakPassword | 授予查询DDM弱密码校验的权限。 | read | - | - | ddm:user:list | | ddm:database:configBlacklist | 授予配置SQL黑名单的权限。 | write | database | g:EnterpriseProjectId g:ResourceTag/\ | ddm:blacklist:config | | ddm:database:getBlacklist | 授予查询SQL黑名单的权限。 | read | database | g:EnterpriseProjectId g:ResourceTag/\ | ddm:blacklist:get | | ddm:instance:syncDataNode | 授予同步数据节点信息的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:rds:synchro | | ddm:instance:updateDataNodeReadWritePolicy | 授予更新读写比重的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:rds:modifyReadPolicy | | ddm:instance:listDataNode | 授予查询数据节点列表的权限。 | list | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:rds:list | | ddm:instance:checkDataNodeConnection | 授予检查数据节点连通性的权限。 | read | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:list | | ddm::listTask | 授予查询任务列表的权限。 | list | - | - | ddm:task:list | | ddm::getTask | 授予查询任务详情的权限。 | read | - | - | ddm:task:get | | ddm::listTags | 授予查询项目下所有标签列表的权限。 | list | - | - | ddm:tag:list | | ddm::listTagsForResource | 授予查询实例标签列表的权限。 | list | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:tag:list | | ddm::updateTagForResource | 授予修改标签的权限。 | tagging | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:tag:modify | | ddm::tagResource | 授予添加标签的权限。 | tagging | instance | g:EnterpriseProjectId g:ResourceTag/\ g:RequestTag/\ g:TagKeys | ddm:tag:modify | | ddm::untagResource | 授予删除标签的权限。 | tagging | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:tag:modify | | ddm:instance:listGroup | 授予查询实例组列表的权限。 | list | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:list | | ddm:database:listTable | 授予查询逻辑表的权限。 | list | database | g:EnterpriseProjectId g:ResourceTag/\ | ddm:table:list | | ddm:database:getTable | 授予查询逻辑表详情的权限。 | read | database | g:EnterpriseProjectId g:ResourceTag/\ | ddm:table:list | | ddm:database:create | 授予创建逻辑库的权限。 | write | database | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:database:delete | 授予删除逻辑库的权限。 | write | database | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:database:list | 授予查询逻辑库列表的权限。 | list | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:database:get | 授予查询逻辑库详情的权限。 | read | database | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:database:migrate | 授予逻辑库分片变更的权限。 | write | database | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:database:migrateRollback | 授予逻辑库分片变更回滚的权限。 | write | database | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:database:dumpMetadata | 授予导出逻辑库元信息的权限。 | write | database | g:EnterpriseProjectId g:ResourceTag/\ | ddm:database:get | | ddm:database:loadMetadata | 授予导入逻辑库元信息的权限。 | write | database | g:EnterpriseProjectId g:ResourceTag/\ | ddm:database:create | | ddm:instance:enlargeNode | 授予扩节点的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:extendNode | | ddm:instance:reduceNode | 授予缩节点的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:extendNode | | ddm:instance:getNode | 授予查询节点详情的权限。 | read | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:get | | ddm:instance:listNodes | 授予查询节点列表的权限。 | list | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:list | | ddm:instance:updateElbIp | 授予修改实例ELB IP的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:modify | | ddm:instance:create | 授予创建DDM实例的权限。 | write | instance | g:RequestTag/\ g:TagKeys g:EnterpriseProjectId | - | | ddm:instance:reboot | 授予重启DDM实例的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:instance:delete | 授予删除DDM实例的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:instance:resize | 授予规格变更的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:instance:updateName | 授予修改DDM实例名称的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:modify | | ddm:instance:updateIpGroup | 授予修改DDM访问控制的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:modify | | ddm:instance:reload | 授予重新加载DDM实例元信息的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:modify | | ddm:instance:updateSecurityGroup | 授予更新DDM实例安全组的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:modify | | ddm:instance:updatePort | 授予更新DDM实例端口的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:modify | | ddm::listProduct | 授予产品列表的权限。 | list | - | - | ddm:product:list | | ddm:instance:updateRwStrategy | 授予打开或关闭读写分离的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:modify | | ddm:instance:getRwStrategy | 授予查看是否开启读写分离的权限。 | read | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:list | | ddm:instance:listRwInfo | 授予查询指定时间段内在DDM实例的读写次数。 | read | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:instance:listSlowSqlInfo | 授予查看慢SQL监控信息的权限。 | list | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:instance:list | 授予查询DDM实例列表的权限。 | list | - | g:RequestTag/\ g:TagKeys g:EnterpriseProjectId | - | | ddm:instance:get | 授予查询DDM实例详情的权限。 | read | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:instance:changeVersion | 授予DDM升降级的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:instance:queryProcessList | 授予查询会话列表的权限。 | list | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:instance:killProcessList | 授予Kill会话的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:instance:modifySsl | 授予切换DDM内核的ssl开关的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:instance:getSslCertDownloadAddress | 授予获取DDM的ssl证书下载地址的权限。 | read | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:list | | ddm:instance:modifyPublicAccess | 授予绑定、解绑实例公网EIP的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:database:listGsi | 授予查询GSI列表的权限。 | list | database | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:database:createGsi | 授予创建GSI的权限。 | write | database | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:database:rebuildGsi | 授予重建GSI的权限。 | write | database | g:EnterpriseProjectId g:ResourceTag/\ | - | | ddm:instance:createSqlLimit | 授予创建实例自治限流规则的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:modify | | ddm:instance:deleteSqlLimit | 授予删除实例自治限流规则的权限。 | write | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:modify | | ddm:instance:querySqlLimit | 授予查询实例自治限流规则的权限。 | list | instance | g:EnterpriseProjectId g:ResourceTag/\ | ddm:instance:query | DDM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 | |:---|:---|:---| | POST /v1/{project_id}/instances | ddm:instance:create | - | | GET /v1/{project_id}/instances?offset={offset}\&limit={limit} | ddm:instance:list | - | | GET /v1/{project_id}/instances/{instance_id} | ddm:instance:get | - | | PUT /v1/{project_id}/instances/{instance_id}/modify-name | ddm:instance:updateName | - | | PUT /v1/{project_id}/instances/{instance_id}/modify-security-group | ddm:instance:updateSecurityGroup | - | | DELETE /v1/{project_id}/instances/{instance_id}?delete_rds_data=true | ddm:instance:delete | - | | POST /v1/{project_id}/instances/{instance_id}/action | ddm:instance:reboot | - | | POST /v1/{project_id}/instances/{instance_id}/reload-config | ddm:instance:reload | - | | POST /v2/{project_id}/instances/{instance_id}/action/enlarge | ddm:instance:enlargeNode | - | | POST /v2/{project_id}/instances/{instance_id}/action/reduce | ddm:instance:reduceNode | - | | PUT /v2/{project_id}/instances/{instance_id}/action/read-write-strategy | ddm:instance:updateDataNodeReadWritePolicy | - | | POST /v1/{project_id}/instances/{instance_id}/rds/sync | ddm:instance:syncDataNode | - | | GET /v1/{project_id}/instances/{instance_id}/nodes?offset={offset}\&limit={limit} | ddm:instance:listNodes | - | | GET /v1/{project_id}/instances/{instance_id}/nodes/{node_id} | ddm:instance:getNode | - | | GET /v2/{project_id}/engines?offset={offset}\&limit={limit} | ddm::listProduct | - | | GET /v2/{project_id}/flavors?engine_id={engine_id}\&offset={offset}\&limit={limit} | ddm::listProduct | - | | PUT /v3/{project_id}/instances/{instance_id}/flavor | ddm:instance:resize | - | | GET /v3/{project_id}/instances/{instance_id}/groups?offset={offset}\&limit={limit} | ddm:instance:listGroup | - | | POST /v3/{project_id}/instances/{instance_id}/groups | ddm:instance:enlargeNode | - | | DELETE /v3/{project_id}/instances/{instance_id}/groups/{group_id} | ddm:instance:reduceNode | - | | GET /v3/{project_id}/engines?offset={offset}\&limit={limit} | ddm::listProduct | - | | GET /v3/{project_id}/flavors?engine_id={engine_id}\&offset={offset}\&limit={limit}\&engine_version={engine_version}\&available_zones={available_zones} | ddm::listProduct | - | | GET /v3/{project_id}/instances/{instance_id}/configurations?offset={offset}\&limit={limit} | ddm::getParamGroup | - | | PUT /v3.1/{project_id}/instances/{instance_id}/configurations | ddm:param:update | - | | POST /v3/{project_id}/instances/{instance_id}/nodes | ddm:instance:enlargeNode | - | | DELETE /v3/{project_id}/instances/{instance_id} | ddm:instance:delete | - | | POST /v3/{project_id}/instances/{instance_id}/switch-ssl | ddm:instance:modifySsl | - | | PUT /v3/{project_id}/instances/{instance_id}/port | ddm:instance:updatePort | - | | POST /v3/{project_id}/instances/{instance_id}/restart | ddm:instance:reboot | - | | POST /v3/{project_id}/instances/{instance_id}/nodes/{node_id}/restart | ddm:instance:reboot | - | | POST /v3/{project_id}/instances/{instance_id}/eip | ddm:instance:modifyPublicAccess | - | | DELETE /v3/{project_id}/instances/{instance_id}/eip | ddm:instance:modifyPublicAccess | - | | PUT /v3/{project_id}/instances/{instance_id}/elb/ip | ddm:instance:updateElbIp | - | | DELETE /v3/{project_id}/instances/{instance_id}/nodes | ddm:instance:reduceNode | - | | POST /v3/{project_id}/instances/{instance_id}/nodes/batch-delete | ddm:instance:reduceNode | - | | GET /v3/{project_id}/instances/{instance_id}/nodes/{node_id} | ddm:instance:getNode | - | | POST /v3/{project_id}/instances | ddm:instance:create | - | | GET /v3/{project_id}/instances/{instance_id}/public-ips | ddm:instance:get | - | | POST /v3/{project_id}/instances/{instance_id}/data-nodes/sync | ddm:instance:syncDataNode | - | | PUT /v3/{project_id}/instances/{instance_id}/name | ddm:instance:updateName | - | | PUT /v3/{project_id}/instances/{instance_id}/security-group | ddm:instance:updateSecurityGroup | - | | POST /v3/{project_id}/instances/{instance_id}/reload-config | ddm:instance:reload | - | | POST /v3/{project_id}/instances/{instance_id}/rds/connection | ddm:instance:checkDataNodeConnection | - | | POST /v1/{project_id}/instances/{instance_id}/databases | ddm:database:create | - | | GET /v1/{project_id}/instances/{instance_id}/databases?offset={offset}\&limit={limit} | ddm:database:list | - | | GET /v1/{project_id}/instances/{instance_id}/databases/{ddm_dbname} | ddm:database:get | - | | DELETE /v1/{project_id}/instances/{instance_id}/databases/{ddm_dbname}?delete_rds_data=true | ddm:database:delete | - | | GET /v1/{project_id}/instances/{instance_id}/rds?offset={offset}\&limit={limit} | ddm:instance:listDataNode | - | | POST /v3/{project_id}/instances/{instance_id}/databases | ddm:database:create | - | | DELETE /v3/{project_id}/instances/{instance_id}/databases/{database_name} | ddm:database:delete | - | | GET /v3/{project_id}/instances/{instance_id}/databases/{database_name} | ddm:database:get | - | | GET /v3/{project_id}/instances/{instance_id}/schema-metadata | ddm:database:dumpMetadata | - | | POST /v3/{project_id}/instances/{instance_id}/schema-metadata | ddm:database:loadMetadata | - | | GET /v3/{project_id}/instances/{instance_id}/available-data-nodes | ddm:instance:listDataNode | - | | GET /v3/{project_id}/instances/{instance_id}/databases/{db_name}/migration/available-data-nodes | ddm:instance:listDataNode | - | | POST /v3/{project_id}/instances/{instance_id}/databases/{db_name}/migration/precheck | ddm:database:migrate | - | | GET /v3/{project_id}/instances/{instance_id}/databases/{db_name}/migration/precheck/{job_id} | ddm:instance:list | - | | POST /v3/{project_id}/instances/{instance_id}/databases/{db_name}/migration | ddm:database:migrate | - | | GET /v3/{project_id}/instances/{instance_id}/databases/{db_name}/migration/jobs/{job_id} | ddm::listTask | - | | PUT /v3/{project_id}/instances/{instance_id}/databases/{db_name}/migration/jobs/{job_id}/cancel | ddm:database:migrate | - | | PUT /v3/{project_id}/instances/{instance_id}/databases/{db_name}/migration/jobs/{job_id}/rollback | ddm:database:migrateRollback | - | | PUT /v3/{project_id}/instances/{instance_id}/databases/{db_name}/migration/jobs/{job_id}/clean | ddm:database:migrate | - | | PUT /v3/{project_id}/instances/{instance_id}/databases/{db_name}/migration/jobs/{job_id}/retry | ddm:database:migrate | - | | PUT /v3/{project_id}/instances/{instance_id}/databases/{db_name}/migration/jobs/{job_id}/route-switch-strategy | ddm:database:migrate | - | | PUT /v3/{project_id}/instances/{instance_id}/databases/{db_name}/migration/jobs/{job_id}/route-switch | ddm:database:migrate | - | | POST /v1/{project_id}/instances/{instance_id}/users | ddm:instance:createUser | - | | GET /v1/{project_id}/instances/{instance_id}/users?offset={offset}\&limit={limit} | ddm:instance:listUser | - | | PUT /v1/{project_id}/instances/{instance_id}/users/{username} | ddm:instance:updateUser | - | | DELETE /v1/{project_id}/instances/{instance_id}/users/{username} | ddm:instance:deleteUser | - | | POST /v2/{project_id}/instances/{instance_id}/users/{username}/password | ddm:instance:updateUser | - | | PUT /v3/{project_id}/instances/{instance_id}/admin-user | ddm:instance:updateUser | - | | POST /v3/{project_id}/weak-password-verification | ddm::validateWeakPassword | - | | POST /v3/{project_id}/instances/{instance_id}/users | ddm:instance:createUser | - | | GET /v3/{project_id}/instances/{instance_id}/users | ddm:instance:listUser | - | | PUT /v3/{project_id}/instances/{instance_id}/users/{username} | ddm:instance:updateUser | - | | DELETE /v3/{project_id}/instances/{instance_id}/users/{username} | ddm:instance:deleteUser | - | | POST /v3/{project_id}/instances/{instance_id}/users/{username}/password | ddm:instance:updateUser | - | | GET /v3/{project_id}/jobs/{job_id} | ddm::getTask | - | | GET /v3/{project_id}/jobs | ddm::listTask | - | | GET /v2/{project_id}/instances/{instance_id}/slowlog?curPage={curPage}\&perPage={perPage}\&startDate={startDate}\&endDate={endDate} | ddm:instance:listSlowSqlInfo | - | | GET /v3/{project_id}/instances/{instance_id}/logical-processes?offset={offset}\&limit={limit} | ddm:instance:queryProcessList | - | | DELETE /v3/{project_id}/instances/{instance_id}/logical-processes | ddm:instance:killProcessList | - | | GET /v3/{project_id}/instances/{instance_id}/physical-processes?offset={offset}\&limit={limit} | ddm:instance:queryProcessList | - | | DELETE /v3/{project_id}/instances/{instance_id}/physical-processes | ddm:instance:killProcessList | - | | GET /v3/{project_id}/instances/{instance_id}/processes-audit-log?offset={offset}\&limit={limit}\&start_time={start_time}\&end_time={end_time} | ddm:instance:queryProcessList | - | | GET /v3/{project_id}/instances/{instance_id}/database-version/available-versions | ddm:instance:get | - | | POST /v3/{project_id}/instances/{instance_id}/database-version/change-version | ddm:instance:changeVersion | - | | POST /v3/{project_id}/instances/{instance_id}/database-version/rollback-version | ddm:instance:changeVersion | - | | GET /v3/{project_id}/instances/{instance_id}/show-risk-info | ddm:instance:get | - | | GET /v3/{project_id}/backups | ddm::listBackup | - | | DELETE /v3/{project_id}/backups/{backup_id} | ddm:instance:deleteBackup | - | | GET /v3/{project_id}/instances/{instance_id}/backups/{backup_id} | ddm:instance:getBackup | - | | GET /v3/{project_id}/instances/{instance_id}/backups/related-dn | ddm:instance:getBackup | - | | GET /v3/{project_id}/instances/{instance_id}/backups/restorable-time-interval | ddm:instance:getBackup | - | | GET /v3/{project_id}/instances/{instance_id}/backups/restorable-data-node | ddm:instance:listDataNode | - | | GET /v3/{project_id}/instances/{instance_id}/backups/restorable-instances | ddm:instance:list | - | | POST /v3/{project_id}/instances/{instance_id}/backups/metadata-recovery | ddm:instance:restore | - | | POST /v3/{project_id}/instances/{instance_id}/backups/recovery | ddm:instance:restore | - | | GET /v3/{project_id}/configurations | ddm::listParamGroup | - | | GET /v3/{project_id}/configurations/{config_id} | ddm::getParamGroup | - | | POST /v3/{project_id}/configurations | ddm::createParamGroup | - | | DELETE /v3/{project_id}/configurations/{config_id} | ddm::deleteParamGroup | - | | GET /v3/{project_id}/configurations/{config_id}/apply-histories | ddm::listParamGroup | - | | POST /v3/{project_id}/configurations/{config_id}/copy | ddm::copyParamGroup | - | | PUT /v3/{project_id}/configurations/{config_id} | ddm::updateParamGroup | - | | GET /v3/{project_id}/configurations/{config_id}/query-instances | ddm:instance:list | - | | PUT /v3/{project_id}/configurations/diff | ddm::listParamGroup | - | #### 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。 DDM定义了以下可以在身份策略的Resource元素中使用的资源类型。 表3DDM支持的资源类型 | 资源类型 | URN | |:---|:---| | instance | ddm:\:\:instance:\ | | database | ddm:\:\:database:\/\ | #### 条件（Condition） 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_0934.html)和[运算符](https://support.huaweicloud.com/usermanual-iam5/iam_01_0934.html)。 - 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_0934.html)。 - 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_0934.html)。