Actions Supported by Identity Policy-based Authorization
IAM provides system-defined identity policies to define common actions supported by cloud services. You can also create custom identity policies using the actions supported by cloud services for more refined access control.
In addition to IAM, the Organizations service also provides service control policies (SCPs) to set access control policies.
SCPs do not actually grant any permissions to an entity. They only set the permissions boundary for the entity. When SCPs are attached to an organizational unit (OU) or a member account, the SCPs do not directly grant permissions to that OU or member account. Instead, the SCPs only determine what permissions are available for that member account or those member accounts under that OU. The granted permissions can be applied only if they are allowed by the SCPs.
To learn more about how IAM is different from Organizations for access control, see How IAM Is Different from Organizations for Access Control?
This section describes the elements used by IAM custom identity policies and Organizations SCPs. The elements include actions, resources, and conditions.
- For details about how to use these elements to edit an IAM custom identity policy, see Creating a Custom Identity Policy.
- For details about how to use these elements to edit a custom SCP, see Creating an SCP.
Actions
Actions are specific operations that are allowed or denied in an identity policy.
- The Access Level column describes how the action is classified (List, Read, or Write). This classification helps you understand the level of access that an action grants when you use it in an identity policy.
- The Resource Type column indicates whether the action supports resource-level permissions.
- You can use a wildcard (*) to indicate all resource types. If this column is empty (-), the action does not support resource-level permissions and you must specify all resources ("*") in your identity policy statements.
- If this column includes a resource type, you must specify a URN for the Resource element in your identity policy statements.
- Required resources are marked with asterisks (*) in the table. If you specify a resource in a statement using this action, then it must be of this type.
For details about the resource types defined by OMS, see Resources.
- The Condition Key column contains keys that you can specify in the Condition element of an identity policy statement.
- If the Resource Type column has values for an action, the condition key takes effect only for the listed resource types.
- If the Resource Type column is empty (-) for an action, the condition key takes effect for all resources that action supports.
- If the Condition Key column is empty (-) for an action, the action does not support any condition keys.
For details about the condition keys defined by OMS, see Conditions.
- The Alias column lists the policy actions that are configured in identity policies. With these actions, you can use APIs for policy-based authorization. For details, see Policies and Identity Policies.
The following table lists the actions that you can define in identity policy statements for OMS.
| Action | Description | Access Level | Resource Type (*: required) | Condition Key | Alias |
|---|---|---|---|---|---|
| oms:task:list | Grants permission to list migration tasks. | List | task | - | - |
| oms:task:create | Grants permission to create a migration task. | Write | task | - | - |
| oms:task:get | Grants permission to query details about a migration task. | Read | task | - | - |
| oms:task:delete | Grants permission to delete a migration task. | Write | task | - | - |
| oms:task:update | Grants permission to update a migration task. | Write | task | - | - |
| oms:synctask:list | Grants permission to list synchronization tasks. | List | synctask | - | - |
| oms:synctask:create | Grants permission to create a synchronization task. | Write | synctask | - | - |
| oms:synctask:get | Grants permission to query details about a synchronization task. | Read | synctask | - | - |
| oms:synctask:delete | Grants permission to delete a synchronization task. | Write | synctask | - | - |
| oms:synctask:statistics | Grants permission to query statistics about a synchronization task. | Read | synctask | - | - |
| oms:synctask:update | Grants permission to update a synchronization task. | Write | synctask | - | - |
| oms:synctask:createEvent | Grants permission to create a synchronization event. | Write | synctask | - | - |
| oms:taskgroup:create | Grants permission to create a migration task group. | Write | taskgroup | - | - |
| oms:taskgroup:list | Grants permission to list migration task groups. | List | taskgroup | - | - |
| oms:taskgroup:get | Grants permission to query details about a migration task group. | Read | taskgroup | - | - |
| oms:taskgroup:delete | Grants permission to delete a migration task group. | Write | taskgroup | - | - |
| oms:taskgroup:update | Grants permission to update a migration task group. | Write | taskgroup | - | - |
| oms::listObjects | Grants permission to list objects in a bucket. | List | - | - | - |
| oms::checkCdnInfo | Grants permission to check the connectivity between a bucket and CDN. | Read | - | - | - |
| oms::listBuckets | Grants permission to list buckets. | List | - | - | - |
| oms::listBucketRegions | Grants permission to query the region of a bucket. | List | - | - | - |
| oms::checkBucketPrefix | Grants permission to check whether a bucket has objects with a specified prefix. | Read | - | - | - |
| oms::listCloudRegions | Grants permission to query regions supported for a cloud vendor. | List | - | - | - |
| oms::listCloudTypes | Grants permission to list supported cloud vendors. | List | - | - | - |
| oms::agreePrivacyAgreement | Grants permission to agree to the privacy agreement. | Write | - | - | - |
| oms::checkUrlSourceListFileFormat | Grants permission to check the format of the URL list file. | Read | - | - | - |
| oms:workflowTask:create | Grants permission to create migration workflows. | Write | workflowTask | - | - |
| oms:workflowTask:list | Grants the permission to list migration workflows. | List | workflowTask | - | - |
| oms:workflowTask:get | Grants permission to query details about a specified task. | Read | workflowTask | - | - |
| oms:workflowTask:delete | Grants permission to delete migration workflows. | Write | workflowTask | - | - |
| oms:workflowTask:showMonitoring | Grants permission to query task monitoring data by ID. | Read | workflowTask | - | - |
| oms:workflowTask:pause | Grants permission to pause migration workflows. | Write | workflowTask | - | - |
| oms:workflowTask:start | Grants permission to resume migration workflows (resuming a paused workflow or restarting a failed workflow). | Write | workflowTask | - | - |
| oms:workflowTask:update | Grants permission to modify migration service configurations. | Write | workflowTask | - | - |
| oms:bucket:listBuckets | Grants permission to list buckets. | List | - | - | - |
| oms:bucket:listObjects | Grants permission to list objects in a bucket. | List | - | - | - |
| oms:bucket:showCdnInfo | Grants permission to check whether there is a CDN acceleration domain name. | Read | - | - | - |
| oms:cluster:create | Grants permission to create a cluster. | Write | cluster | - | - |
| oms:cluster:list | Grants permission to query list clusters. | List | cluster | - | - |
| oms:cluster:get | Grants permission to query the details about a cluster. | Read | cluster | - | - |
| oms:cluster:upgradeVersion | Grants permission to upgrade the service version. | Write | cluster | - | - |
| oms:cluster:updateBaseInfo | Grants permission to update basic information. | Write | cluster | - | - |
| oms:cluster:retry | Grants permission to retry cluster creation upon failure. | Write | cluster | - | - |
| oms:cluster:delete | Grants permission to delete a cluster. | Write | cluster | - | - |
| oms:cluster:updateExtendProperty | Grants permission to modify extended attributes of a cluster. | Write | cluster | - | - |
| oms:cluster:retryExtendProperty | Grants permission to retry extended attribute modification upon failure. | Write | cluster | - | - |
| oms:cluster:estimate | Grants permission to perform cluster assessment and recommendation. | Write | cluster | - | - |
| oms:node:extend | Grants permission to scale out a cluster. | Write | node | - | - |
| oms:node:retry | Grants permission to retry node installation upon failure. | Write | node | - | - |
| oms:node:reinstall | Grants permission to reinstall a node. | Write | node | - | - |
| oms:node:delete | Grants permission to delete nodes. | Write | node | - | - |
| oms:journey:save | Grants permission to save a journey. | Write | - | - | - |
| oms:journey:get | Grants permission to query the details about a journey. | Read | - | - | - |
| oms:journey:finish | Grants permission to end a journey. | Write | - | - | - |
| oms:credential:save | Grants permission to save credentials. | Write | - | - | - |
| oms:credential:list | Grants permission to query list credentials. | List | - | - | - |
| oms:task:listJourneySummary | Grants permission to query the task summary of a journey. | List | task | - | - |
| oms:task:listTaskJourneyReport | Grants permission to query the task report of a journey. | List | task | - | - |
| oms:workflowTask:listJourneySummary | Grants permission to query the workflow task summary of a journey. | List | workflowTask | - | - |
| oms:workflowTask:listTaskJourneyReport | Grants permission to query the workflow task report of a journey. | List | workflowTask | - | - |
Each API of OMS usually supports one or more actions. Table 2 lists the actions and dependencies supported by OMS APIs.
| API | Action | Dependencies |
|---|---|---|
| POST /v2/{project_id}/tasks/batch-update | oms:task:update | - |
| GET /v2/{project_id}/tasks | oms:task:list | - |
| POST /v2/{project_id}/tasks | oms:task:create | - |
| GET /v2/{project_id}/tasks/{task_id} | oms:task:get | - |
| DELETE /v2/{project_id}/tasks/{task_id} | oms:task:delete | - |
| POST /v2/{project_id}/tasks/{task_id}/stop | oms:task:update | - |
| POST /v2/{project_id}/tasks/{task_id}/start | oms:task:update | - |
| PUT /v2/{project_id}/tasks/{task_id}/bandwidth-policy | oms:task:update | - |
| PUT /v2/{project_id}/tasks/{task_id}/access-keys | oms:task:update | - |
| GET /v2/{project_id}/sync-tasks | oms:synctask:list | - |
| POST /v2/{project_id}/sync-tasks | oms:synctask:create | - |
| GET /v2/{project_id}/sync-tasks/{sync_task_id} | oms:synctask:get | - |
| DELETE /v2/{project_id}/sync-tasks/{sync_task_id} | oms:synctask:delete | - |
| GET /v2/{project_id}/sync-tasks/{sync_task_id}/statistics | oms:synctask:statistics | - |
| POST /v2/{project_id}/sync-tasks/{sync_task_id}/stop | oms:synctask:update | - |
| POST /v2/{project_id}/sync-tasks/{sync_task_id}/start | oms:synctask:update | - |
| POST /v2/{project_id}/sync-tasks/{sync_task_id}/events | oms:synctask:createEvent | - |
| POST /v2/{project_id}/taskgroups | oms:taskgroup:create | - |
| GET /v2/{project_id}/taskgroups | oms:taskgroup:list | - |
| GET /v2/{project_id}/taskgroups/{group_id} | oms:taskgroup:get | - |
| DELETE /v2/{project_id}/taskgroups/{group_id} | oms:taskgroup:delete | - |
| PUT /v2/{project_id}/taskgroups/{group_id}/stop | oms:taskgroup:update | - |
| PUT /v2/{project_id}/taskgroups/{group_id}/start | oms:taskgroup:update | - |
| PUT /v2/{project_id}/taskgroups/{group_id}/retry | oms:taskgroup:update | - |
| PUT /v2/{project_id}/taskgroups/{group_id}/update | oms:taskgroup:update | - |
| POST /v2/{project_id}/objectstorage/buckets/objects | oms::listObjects | - |
| POST /v2/{project_id}/objectstorage/buckets/cdn-info | oms::checkCdnInfo | - |
| POST /v2/{project_id}/objectstorage/buckets | oms::listBuckets | - |
| POST /v2/{project_id}/objectstorage/buckets/regions | oms::listBucketRegions | - |
| POST /v2/{project_id}/objectstorage/buckets/prefix | oms::checkBucketPrefix | - |
| GET /v2/{project_id}/objectstorage/data-center | oms::listCloudRegions | - |
| GET /v2/{project_id}/objectstorage/cloud-type | oms::listCloudTypes | - |
Resources
A resource type indicates the resources that an identity policy applies to. If you specify a resource type for any action in Table 3, a resource URN must be specified in the identity policy statements using that action, and the identity policy applies only to the resource. If no resource type is specified, the Resource element is marked with an asterisk (*) and the identity policy applies to all resources. You can also set condition keys in a policy to define resource types.
The following table lists the resource types that you can specify in identity policy statements for OMS.
| Resource Type | URN |
|---|---|
| Task | oms:<region>:<account-id>:task:* |
| oms:<region>:<account-id>:task:<task-id> | |
| SyncTask | oms:<region>:<account-id>:synctask:* |
| oms:<region>:<account-id>:synctask:<synctask-id> | |
| TaskGroup | oms:<region>:<account-id>:taskgroup:* |
| oms:<region>:<account-id>:taskgroup:* |
APIs related to synchronization tasks are available only in CN North-Beijing4, CN East-Shanghai1, and CN Southwest-Guiyang1.
Conditions
OMS does not support service-specific condition keys in identity policies.
It can only use global condition keys applicable to all services. For details, see Global Condition Keys.
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