分布式消息服务Kafka版 Kafka
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服务中的服务控制策略（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。
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）。
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DMS for Kafka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DMS for Kafka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。
您可以在身份策略语句的Action元素中指定以下DMS for Kafka的相关操作。
授权项 | 描述 | 访问级别 | 资源类型（*为必须） | 条件键 | 别名 |
|---|---|---|---|---|---|
dms:instance:connector | 授予开启实例Smart Connect功能的权限。 | Write | kafka * | - | |
dms:instance:list | 授予查看实例列表的权限。 | List | kafka * | - | |
dms:instance:scale | 授予实例扩容权限。 | Write | kafka * | - | |
dms:instance:listConnectorSinkTask | 授予查看Smart Connect任务列表的权限。 | List | kafka * | - | |
dms:instance:getBackgroundTask | 授予查看实例后台任务详情权限。 | Read | kafka | - | |
dms:instance:deleteBackgroundTask | 授予删除实例后台任务的权限。 | Write | kafka | - | |
dms:instance:create | 授予创建实例的权限。 | Write | kafka * | - | |
dms:instance:update | 授予修改实例的权限。 | Write | kafka * | dms:instance:modify | |
dms:instance:upgrade | 授予升级实例的权限。 | Write | kafka | dms:instance:modify | |
dms:instance:getDetail | 授予查看实例详情的权限。 | Read | kafka * | dms:instance:get | |
dms:instance:closeManager | 授予关闭Kafka Manager的权限。 | Write | kafka * | - | |
dms:instance:deleteConnectorSinkTask | 授予删除Smart Connect任务的权限。 | Write | kafka | - | |
dms:instance:modifyAuthInfo | 授予修改实例访问密码的权限。 | Write | kafka | - | |
dms:instance:modifyStatus | 授予重启实例的权限。 | Write | kafka | - | |
dms:instance:delete | 授予删除实例的权限。 | Write | kafka * | - | |
dms:instance:getConnectorSinkTask | 授予查看Smart Connect任务详情的权限。 | Read | kafka | - | |
dms:instance:createConnectorSinkTask | 授予创建Smart Connect任务的权限。 | Write | kafka | - | |
dms:instance:updateConnectorSinkTask | 授予更新Smart Connect任务的权限。 | Write | kafka | dms:instance:createConnectorSinkTask | |
dms:instance:resetAuthInfo | 授予重置实例访问密码的权限。 | Write | kafka | - | |
dms:message:get | 授予查询消息详情的权限。 | Read | kafka | dms:instance:get | |
topic | - | ||||
dms:message:send | 授予发送消息的权限。 | Write | kafka | dms:instance:modify | |
dms:topic:list | 授予获取主题列表的权限。 | List | kafka | dms:instance:get | |
topic * | - | ||||
dms:topic:modify | 授予修改主题的权限。 | Write | kafka | dms:instance:modify | |
topic * | - | ||||
dms:topic:create | 授予创建主题的权限。 | Write | kafka | dms:instance:modify | |
topic | - | ||||
dms:instance:getTopicDiskUsage | 授予查询主题磁盘使用率的权限。 | Read | kafka | - | |
dms:topic:delete | 授予删除主题的权限。 | Write | kafka | dms:instance:modify | |
topic * | - | ||||
dms:topic:getAccessPolicy | 授予获取主题授权策略的权限。 | Read | kafka | dms:instance:get | |
topic * | - | ||||
dms:topic:autoCreate | 授予开启或关闭自动创建主题的权限。 | Write | kafka | dms:instance:modify | |
dms:topic:get | 授予查询主题信息的权限。 | Read | kafka | dms:instance:get | |
topic * | - | ||||
dms:topic:updateReplica | 授予修改主题分区的副本的权限。 | Write | kafka | - | |
topic * | - | ||||
dms:topic:setAccessPolicy | 授予为主题设置访问策略的权限。 | Write | kafka | dms:instance:modify | |
topic * | - | ||||
dms:user:list | 授予获取实例用户列表的权限。 | List | kafka | dms:instance:get | |
dms:user:modify | 授予修改实例用户信息的权限。 | Write | kafka | dms:instance:modify | |
dms:user:delete | 授予删除实例用户的权限。 | Write | kafka | dms:instance:modify | |
dms:user:create | 授予新增实例用户的权限。 | Write | kafka | dms:instance:modify | |
dms:group:get | 授予获取消费组的详情的权限。 | Read | kafka | dms:instance:get | |
consumerGroup * | - | ||||
dms:group:list | 授予获取消费组列表的权限。 | List | kafka | dms:instance:get | |
consumerGroup * | - | ||||
dms:group:modify | 授予修改消费组的权限。 | Write | kafka | dms:instance:modify | |
consumerGroup * | - | ||||
dms:group:create | 授予创建消费组的权限。 | Write | kafka | dms:instance:modify | |
consumerGroup * | - | ||||
dms:group:delete | 授予删除消费组的权限。 | Write | kafka | dms:instance:modify | |
consumerGroup * | - | ||||
dms:coordinator:list | 授予获取实例的协调器列表的权限。 | List | kafka | - | |
dms:instance:reassignTopic | 授予Topic分区平衡的权限。 | Write | kafka * | - | |
dms::updateRecyclePolicy | 授予更新回收站策略的权限。 | Write | - | - | dms:instance:modify |
dms:instance:restore | 授予恢复实例的权限。 | Write | kafka | dms:instance:modify | |
dms:instance:deleteScheduledTask | 授予删除实例定时任务的权限。 | Write | kafka | dms:instance:modify | |
rabbitmq | |||||
rocketmq | |||||
dms:instance:modifyScheduledTask | 授予修改实例定时任务的权限。 | Write | kafka | dms:instance:modify | |
rabbitmq | |||||
rocketmq | |||||
dms:instance:listScheduledTasks | 授予获取实例定时任务列表的权限。 | List | kafka | dms:instance:get | |
rabbitmq | |||||
rocketmq | |||||
dms:instance:updateConnectorTask | 授予更新Smart Connect任务的权限。 | Write | kafka | dms:instance:createConnectorSinkTask | |
dms:instance:modifySslSwitch | 授予修改实例SSL开关的权限。 | Write | kafka | dms:instance:modify | |
rabbitmq | |||||
rocketmq | |||||
dms:instance:listDiagnosisReport | 授予查询实例诊断报告列表的权限。 | List | rocketmq * | dms:instance:get | |
dms:topic:deleteQuota | 授予删除Topic限流配额的权限。 | Write | kafka | dms:instance:modify | |
topic * | - | ||||
dms:topic:setQuota | 授予设置Topic限流配额的权限。 | Write | kafka | dms:instance:modify | |
topic * | - | ||||
dms:topic:modifyQuota | 授予修改Topic限流配额的权限。 | Write | kafka | dms:instance:modify | |
topic * | - | ||||
dms:instance:getTopicQuotas | 授予获取实例Topic限流配额的权限。 | Read | kafka | dms:instance:get | |
dms:instance:getDiagnosisReport | 授予查询实例诊断报告的权限。 | Read | rocketmq * | dms:instance:get | |
dms:instance:disableLog | 授予停用实例日志收集功能的权限。 | Write | kafka | dms:instance:modify | |
rabbitmq | |||||
dms:instance:getLogInfo | 授予查询实例日志收集信息的权限。 | Read | kafka | dms:instance:get | |
rabbitmq | |||||
dms:instance:enableLog | 授予启用实例日志收集功能的权限。 | Write | kafka | dms:instance:modify | |
rabbitmq | |||||
dms:instance:deleteDiagnosisReport | 授予删除实例诊断报告的权限。 | Write | rocketmq * | dms:instance:get | |
dms:instance:getClientQuota | 授予获取客户端限流配额的权限。 | Read | kafka | dms:instance:get | |
dms:instance:setClientQuota | 授予设置客户端限流配额的权限。 | Write | kafka | dms:instance:modify | |
dms:instance:modifyClientQuota | 授予修改客户端限流配额的权限。 | Write | kafka | dms:instance:modify | |
dms:instance:deleteClientQuota | 授予删除客户端限流配额的权限。 | Write | kafka | dms:instance:modify | |
dms:instance:createDiagnosisTask | 授予创建实例诊断任务的权限。 | Write | rocketmq * | dms:instance:get | |
dms:group:deleteConsumeOffset | 授予删除消费者组的消费进度的权限。 | Write | kafka | dms:instance:modify | |
consumerGroup * | - | ||||
dms:connector:validate | 授予校验Connector连通性的权限。 | Write | kafka * | dms:instance:connector |
DMS for Kafka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。
API | 对应的授权项 | 依赖的授权项 |
|---|---|---|
GET /v2/{project_id}/instances/{instance_id}/messages | dms:message:get | - |
POST /v2/{project_id}/kafka/instances/{instance_id}/topics/{topic}/messages/delete | dms:message:delete | - |
PUT /v2/{project_id}/instances/{instance_id}/kafka-manager-password | dms:instance:modifyAuthInfo | - |
PUT /v2/{project_id}/instances/{instance_id}/restart-kafka-manager | dms:instance:modifyStatus | - |
DELETE /v2/{project_id}/kafka/instances/{instance_id}/management | dms:instance:closeManager | - |
POST /v2/{project_id}/instances/action | dms:instance:delete | - |
GET /v2/{project_id}/instances | dms:instance:list | - |
POST /v2/{project_id}/kafka/instances/{instance_id}/extend | dms:instance:scale | - |
GET /v2/{project_id}/kafka/instances/{instance_id}/extend | dms:instance:getDetail | - |
POST /v2/{project_id}/instances/{instance_id}/connector | dms:instance:connector |
|
GET /v2/{project_id}/instances/{instance_id} | dms:instance:getDetail |
|
PUT /v2/{project_id}/instances/{instance_id} | dms:instance:update |
|
POST /v2/{project_id}/kafka/instances/{instance_id}/upgrade | dms:instance:upgrade | - |
DELETE /v2/{project_id}/instances/{instance_id} | dms:instance:delete | - |
POST /v2/{project_id}/instances/{instance_id}/connector/tasks | dms:instance:createConnectorSinkTask | dms:instance:createConnectorTask |
GET /v2/{project_id}/instances/{instance_id}/connector/tasks | dms:instance:listConnectorSinkTask | dms:instance:listConnectorTasks |
PUT /v2/{project_id}/instances/{instance_id}/connector/tasks/{task_id}/pause | dms:instance:updateConnectorSinkTask | - |
PUT /v2/{project_id}/instances/{instance_id}/connector/tasks/{task_id}/resume | dms:instance:updateConnectorSinkTask | - |
GET /v2/{project_id}/instances/{instance_id}/connector/tasks/{task_id} | dms:instance:getConnectorSinkTask | dms:instance:getConnectorTask |
DELETE /v2/{project_id}/instances/{instance_id}/connector/tasks/{task_id} | dms:instance:deleteConnectorSinkTask | dms:instance:deleteConnectorTask |
POST /v2/{project_id}/instances/{instance_id}/password | dms:instance:resetAuthInfo | - |
GET /v2/{project_id}/instances/{instance_id}/tasks | dms:instance:getBackgroundTask | - |
GET /v2/{project_id}/instances/{instance_id}/tasks/{task_id} | dms:instance:getBackgroundTask | - |
DELETE /v2/{project_id}/instances/{instance_id}/tasks/{task_id} | dms:instance:deleteBackgroundTask | - |
GET /v2/{project_id}/instances/{instance_id}/topics | dms:topic:list | - |
PUT /v2/{project_id}/instances/{instance_id}/topics | dms:topic:modify | - |
POST /v2/{project_id}/instances/{instance_id}/topics | dms:topic:create | - |
GET /v2/{project_id}/instances/{instance_id}/topics/diskusage | dms:instance:getTopicDiskUsage | - |
POST /v2/{project_id}/instances/{instance_id}/topics/delete | dms:topic:delete | - |
POST /v2/{project_id}/instances/{instance_id}/crossvpc/modify | dms:instance:update | - |
GET /v2/{project_id}/instances/{instance_id}/users | dms:user:list | - |
PUT /v2/{project_id}/instances/{instance_id}/users | dms:user:delete | - |
POST /v2/{project_id}/instances/{instance_id}/users | dms:user:create | - |
PUT /v2/{project_id}/instances/{instance_id}/users/{user_name} | dms:user:modify | - |
POST /v2/{project_id}/instances/{instance_id}/autotopic | dms:topic:autoCreate | - |
GET /v2/{project_id}/instances/{instance_id}/management/topics/{topic}/partitions/{partition}/beginning-message | dms:message:get | - |
GET /v2/{project_id}/instances/{instance_id}/management/topics/{topic}/partitions/{partition}/end-message | dms:message:get | - |
GET /v2/{project_id}/instances/{instance_id}/management/cluster | dms:instance:getDetail | - |
GET /v2/{project_id}/instances/{instance_id}/management/groups/{group} | dms:group:get | - |
GET /v2/{project_id}/instances/{instance_id}/management/topics/{topic}/partitions/{partition}/message | dms:message:get | - |
GET /v2/{project_id}/instances/{instance_id}/management/topics/{topic}/messages | dms:message:get | - |
GET /v2/{project_id}/instances/{instance_id}/management/coordinators | dms:coordinator:list | - |
GET /v2/{project_id}/instances/{instance_id}/groups | dms:group:list | - |
POST /v2/{project_id}/kafka/instances | dms:instance:create |
|
GET /v1/{project_id}/instances/{instance_id}/topics/{topic_name}/accesspolicy | dms:topic:getAccessPolicy | - |
POST /v1/{project_id}/instances/{instance_id}/topics/accesspolicy | dms:topic:setAccessPolicy | - |
GET /v2/{project_id}/instances/{instance_id}/ces-hierarchy | dms:instance:getDetail | - |
GET /v2/{project_id}/kafka/{instance_id}/tags | dms::listProjectTags | - |
GET /v2/{project_id}/kafka/tags | dms::listProjectTags | - |
POST /v2/{project_id}/kafka/{instance_id}/tags/action | dms:instance:update | - |
POST /v2/{project_id}/kafka/instances/{instance_id}/reassign | dms:instance:reassignTopic | - |
POST /v2/{project_id}/instances/{instance_id}/groups/batch-delete | dms:group:delete | - |
POST /v2/{project_id}/kafka/instances/{instance_id}/group | dms:group:create | - |
PUT /v2/{engine}/{project_id}/instances/{instance_id}/groups/{group} | dms:group:modify | - |
POST /v2/{project_id}/kafka/instances/{instance_id}/delete-connector | dms:instance:connector | - |
POST /v2/{project_id}/instances/{instance_id}/messages/action | dms:message:send | - |
GET /v2/{project_id}/kafka/instances/{instance_id}/topics/{topic}/partitions | dms:topic:get | - |
GET /v2/{project_id}/kafka/instances/{instance_id}/topics/{topic}/producers | dms:topic:get | - |
PUT /v2/{engine}/{project_id}/instances/{instance_id}/users/{user_name} | dms:user:modify | - |
POST /v2/{project_id}/recycle | dms:instance:restore | - |
PUT /v2/{project_id}/recycle | dms::updateRecyclePolicy | - |
POST /v2/{project_id}/instances/{instance_id}/connector/validate | dms:connector:validate | - |
POST /v2/kafka/{project_id}/instances/{instance_id}/groups/{group}/delete-offset | dms:group:deleteConsumeOffset | - |
POST /v2/{project_id}/kafka/instances/{instance_id}/message-diagnosis-tasks | dms:instance:createDiagnosisTask | - |
DELETE /v2/kafka/{project_id}/instances/{instance_id}/kafka-user-client-quota | dms:instance:deleteClientQuota | - |
POST /v2/kafka/{project_id}/instances/{instance_id}/kafka-user-client-quota | dms:instance:setClientQuota | - |
PUT /v2/kafka/{project_id}/instances/{instance_id}/kafka-user-client-quota | dms:instance:modifyClientQuota | - |
GET /v2/kafka/{project_id}/instances/{instance_id}/kafka-user-client-quota | dms:instance:getClientQuota | - |
DELETE /v2/{project_id}/kafka/instances/{instance_id}/message-diagnosis-tasks | dms:instance:deleteDiagnosisReport | - |
GET /v2/{project_id}/instances/{instance_id}/scheduled-tasks | dms:instance:listScheduledTasks | - |
PUT /v2/{project_id}/instances/{instance_id}/scheduled-tasks/{task_id} | dms:instance:modifyScheduledTask | - |
DELETE /v2/{project_id}/instances/{instance_id}/scheduled-tasks/{task_id} | dms:instance:deleteScheduledTask | - |
GET /v2/kafka/{project_id}/instances/{instance_id}/log/rebalance-log | dms:instance:getLogInfo | - |
POST /v2/kafka/{project_id}/instances/{instance_id}/log/rebalance-log | dms:instance:enableLog | - |
DELETE /v2/kafka/{project_id}/instances/{instance_id}/log/rebalance-log | dms:instance:disableLog | - |
GET /v2/{project_id}/kafka/instances/{instance_id}/message-diagnosis/{report_id} | dms:instance:getDiagnosisReport | - |
GET /v2/kafka/{project_id}/instances/{instance_id}/kafka-topic-quota | dms:instance:getTopicQuotas | - |
PUT /v2/kafka/{project_id}/instances/{instance_id}/kafka-topic-quota | dms:topic:modifyQuota | - |
POST /v2/kafka/{project_id}/instances/{instance_id}/kafka-topic-quota | dms:topic:setQuota | - |
DELETE /v2/kafka/{project_id}/instances/{instance_id}/kafka-topic-quota | dms:topic:deleteQuota | - |
GET /v2/{project_id}/kafka/instances/{instance_id}/message-diagnosis-tasks | dms:instance:listDiagnosisReport | - |
GET /v2/{project_id}/instances/{instance_id}/configs | dms:instance:getDetail | - |
POST /v2/{project_id}/{engine}/instances/{instance_id}/plain-ssl-switch | dms:instance:modifySslSwitch | - |
PUT /v2/{project_id}/instances/{instance_id}/connector/tasks/{task_id} | dms:instance:updateConnectorTask | - |
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。
DMS for Kafka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。
资源类型 | URN |
|---|---|
kafka | dms:<region>:<account-id>:kafka:<instance-id> |
topic | dms:<region>:<account-id>:topic:<instance-id>/<topic-name> |
rabbitmq | dms:<region>:<account-id>:rabbitmq:<instance-id> |
consumerGroup | dms:<region>:<account-id>:consumerGroup:<instance-id>/<consumerGroup-name> |
rocketmq | dms:<region>:<account-id>:rocketmq:<instance-id> |
条件（Condition）
条件键概述
条件（Condition）是身份策略生效的特定条件，包括条件键和运算符。
- 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。
- 服务级条件键（前缀通常为服务缩写，如dms:）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。
DMS for Kafka支持的服务级条件键
DMS for Kafka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。
