Actions Supported by Policy-based Authorization

This section describes the actions supported by DMS for RabbitMQ in policy-based authorization.

Supported Actions

DMS for RabbitMQ provides system-defined policies that can be directly used in IAM. You can also create custom policies to supplement system-defined policies for more refined access control. Operations supported by policies are specific to APIs. The following are common concepts related to policies:

Permissions: statements in a policy that allow or deny certain operations
APIs: REST APIs that can be called by a user who has been granted specific permissions
Actions: specific operations that are allowed or denied in a custom policy
Dependencies: actions which a specific action depends on. When allowing an action for a user, you also need to allow any existing action dependencies for that user.
IAM projects/Enterprise projects: the authorization scope of a custom policy. A custom policy can be applied to IAM projects or enterprise projects or both. Policies that contain actions for both IAM and enterprise projects can be used and applied for both IAM and Enterprise Management. Policies that contain actions only for IAM projects can be used and applied to IAM only. Administrators can check whether an action supports IAM projects or enterprise projects in the action list. For details about the differences between IAM and enterprise management, see Differences Between IAM and Enterprise Management.

DMS for RabbitMQ supports the following actions that can be defined in custom policies.

Lifecycle management actions, including actions supported by RabbitMQ lifecycle management APIs, such as the APIs for creating an instance, querying the instance list, modifying instance information, and batch restarting or deleting instances.
Instance management actions, including actions supported by RabbitMQ instance management APIs, such as the APIs for resetting passwords, querying the plug-in list, and enabling or disabling a plug-in.
Specification modification management action, including the action supported by the specification modification management API for modifying instance specifications.
Background task management actions, including actions supported by background task management APIs, such as the APIs for querying the background task list of an instance and querying a specified background task.
Tag management actions, including actions supported by tag management APIs, such as the APIs for querying instance tags and project tags.

Lifecycle Management

**Table 1** Lifecycle management actions
Permission	API	Action	IAM Project	Enterprise Project
Creating a pay-per-use instance	POST /v2/{engine}/{project_id}/instances	dms:instance:create	√	√
Querying all instances	GET /v2/{project_id}/instances	dms:instance:list	√	√
Querying an instance	GET /v2/{project_id}/instances/{instance_id}	dms:instance:get	√	√
Deleting an instance	DELETE /v2/{project_id}/instances/{instance_id}	dms:instance:delete	√	√
Modifying an instance	PUT /v2/{project_id}/instances/{instance_id}	dms:instance:modify	√	√
Batch restarting or deleting instances	POST /v2/{project_id}/instances/action	Restart: dms:instance:modifyStatus Delete: dms:instance:delete	√	√

Instance Management

**Table 2** Instance management actions
Permission	API	Action	IAM Project	Enterprise Project
Resetting a password	POST /v2/{project_id}/instances/{instance_id}/password	dms:instance:resetAuthInfo	√	√
Listing plug-ins	GET /v2/{project_id}/instances/{instance_id}/rabbitmq/plugins	dms:instance:list	√	√
Enabling or disabling a plug-in	PUT /v2/{project_id}/instances/{instance_id}/rabbitmq/plugins	dms:instance:modify	√	√

Specification Modification Management

**Table 3** Specification modification management action
Permission	API	Action	IAM Project	Enterprise Project
Modifying instance specifications	POST /v2/{project_id}/instances/{instance_id}/extend	dms:instance:scale	√	√

Background Task Management

**Table 4** Background task management actions
Permission	API	Action	IAM Project	Enterprise Project
Listing background tasks	GET /v2/{project_id}/instances/{instance_id}/tasks	dms:instance:getBackgroundTask	√	√
Querying a background task	GET /v2/{project_id}/instances/{instance_id}/tasks/{task_id}	dms:instance:getBackgroundTask	√	√
Deleting a background task	GET /v2/{project_id}/instances/{instance_id}/tasks/{task_id}	dms:instance:deleteBackgroundTask	√	√

Tag Management

**Table 5** Tag management actions
Permission	API	Action	IAM Project	Enterprise Project
Batch adding or deleting tags	POST /v2/{project_id}/rabbitmq/{instance_id}/tags/action	dms:instance:modify	√	√
Listing tags of an instance	GET /v2/{project_id}/rabbitmq/{instance_id}/tags	dms:instance:get	√	√
Listing tags of a project	GET /v2/{project_id}/rabbitmq/tags	dms:instance:get	√	√

Table 6 shows fine-grained permission dependencies of DMS for RabbitMQ.

**Table 6** Fine-grained permission dependencies of DMS for RabbitMQ
Action	Description	Dependencies
dms:instance:get	Viewing instance details	None
dms:instance:getBackgroundTask	Viewing background task details	None
dms:instance:resetAuthInfo	Resetting instance passwords	None
dms:instance:scale	Enabling instance scale-up	vpc:vpcs:get vpc:ports:create vpc:securityGroups:get vpc:ports:get vpc:subnets:get vpc:vpcs:list vpc:publicIps:get vpc:publicIps:list vpc:ports:update vpc:publicIps:update
dms:instance:modify	Modifying an instance	vpc:vpcs:get vpc:ports:create vpc:securityGroups:get vpc:ports:get vpc:subnets:get vpc:vpcs:list vpc:publicIps:get vpc:publicIps:list vpc:ports:update vpc:publicIps:update
dms:instance:deleteBackgroundTask	Deleting a background task	None
dms:instance:modifyStatus	Restarting an instance	None
dms:instance:delete	Deleting an instance	None
dms:instance:create	Creating an instance	vpc:vpcs:get vpc:ports:create vpc:securityGroups:get vpc:ports:get vpc:subnets:get vpc:vpcs:list vpc:publicIps:get vpc:publicIps:list vpc:ports:update vpc:publicIps:update
dms:instance:list	Viewing the instance list	None