This section describes fine-grained permissions management for your CSS. If your cloud account does not need individual IAM users, then you may skip over this chapter.
By default, new IAM users do not have any permissions assigned. You need to add a user to one or more groups, and assign permissions policies to these groups. Users inherit permissions from the groups to which they are added and can perform specified operations on cloud services based on the permissions.
You can grant permissions to a role or by creating a policy. Roles are a type of coarse-grained authorization mechanism that defines permissions related to user responsibilities. Policies define API-based permissions for operations on specific resources under certain conditions, allowing for more fine-grained, secure access control of cloud resources.
Policy-based authorization is useful if you want to allow or deny the access to an API.
An account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions. The permissions required for calling an API are determined by the actions supported by the API. Only users who have been granted permissions allowing the actions can call the API successfully.
Supported Actions
CSS provides system-defined policies that can be directly used in IAM. CSS administrators can create custom policies and use them to supplement system-defined policies, implementing more refined access control. Actions supported by policies are specific to APIs. The following are common concepts related to policies:
- Permissions: Allow or deny operations on specified resources under specific conditions.
- APIs: REST APIs that can be called by a custom policy.
- Actions: added to a custom policy to control permissions for specific operations.
- 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 or enterprise projects: type of projects for which an action will take effect. Policies that contain actions supporting both IAM and enterprise projects can be assigned to user groups and take effect in both IAM and Enterprise Management. Policies that only contain actions supporting IAM projects can be assigned to user groups and only take effect for IAM.
The check mark (√) indicates that an action takes effect. The cross mark (x) indicates that an action does not take effect.
Table 1 API actions Permission
API
Action
IAM Project
Enterprise Project
Creating a cluster
POST /v1.0/{project_id}/clusters
css:cluster:create
√
√
Querying a cluster list
GET /v1.0/{project_id}/clusters
css:cluster:list
√
√
Querying cluster details
GET /v1.0/{project_id}/clusters/{cluster_id}
css:cluster:get
√
√
Deleting a cluster
DELETE /v1.0/{project_id}/clusters/{cluster_id}
css:cluster:delete
√
√
Restarting a cluster
POST /v1.0/{project_id}/clusters/{cluster_id}/restart
css:cluster:restart
√
√
Scaling out a cluster
POST /v1.0/{project_id}/clusters/{cluster_id}/extend
css:cluster:scaleOut
√
√
Adding instances and expanding instance storage capacity
POST /v1.0/{project_id}/clusters/{cluster_id}/role_extend
css:cluster:expand
√
√
Querying tags of a specified cluster
GET /v1.0/{project_id}/css-cluster/{cluster_id}/tags
css:tag:get
√
√
Automatically setting basic configurations of a cluster snapshot
POST /v1.0/{project_id}/clusters/{cluster_id}/index_snapshot/auto_setting
css:snapshot:enableAtomaticSnapsot
√
√
Modifying basic configurations of a cluster snapshot
POST /v1.0/{project_id}/clusters/{cluster_id}/index_snapshot/setting
css:snapshot:setSnapshotContiguration
√
√
Setting the automatic snapshot creation policy
POST /v1.0/{project_id}/clusters/{cluster_id}/index_snapshot/policy
css:snapshot:setSnapshotPolicy
√
√
Querying the automatic snapshot creation policy
GET /v1.0/{project_id}/clusters/{cluster_id}/index_snapshot/policy
css:snapshot:getSnapshotPolicy
√
√
Manually creating a snapshot
POST /v1.0/{project_id}/clusters/{cluster_id}/index_snapshot
css:snapshot:create
√
√
Querying the snapshot list
GET /v1.0/{project_id}/clusters/{cluster_id}/index_snapshots
css:snapshot:list
√
√
Restoring a snapshot
POST /v1.0/{project_id}/clusters/{cluster_id}/index_snapshot/{snapshot_id}/restore
css:snapshot:restore
√
√
Deleting a snapshot
DELETE /v1.0/{project_id}/clusters/{cluster_id}/index_snapshot/{snapshot_id}
css:snapshot:delete
√
√
Disabling the snapshot function
DELETE /v1.0/{project_id}/clusters/{cluster_id}/index_snapshots
css:snapshot:disableSnapshotFuction
√
√