Permissions Policies and Supported Actions

This section describes fine-grained permissions management for your CTS. If your account does not require individual IAM users, you can skip this section.

By default, new IAM users do not have permissions assigned. You need to add a user to one or more groups, and attach permissions policies or roles 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 users permissions by using roles and policies. 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. For example, if an IAM user wants to query traces using an API, the user must have been granted permissions that allow the cts:trace:list action.

Supported Actions

CTS provides system-defined policies that can be directly used in IAM. As the enterprise administrator, you can also create custom policies and use them to supplement system-defined policies, implementing more refined access control. Operations supported by policies are specific to APIs. The following are common concepts related to policies:

• Permissions: Defined by actions in a custom policy.
• APIs: REST APIs that can be called by a user who has been granted specific permissions.
• Actions: Specific operations that are allowed or denied.
• Related actions: Actions on which a specific action depends to take effect. When assigning permissions for the action to a user, you also need to assign permissions for the related actions.
• IAM or enterprise projects: Type of projects for which an action will take effect. Policies that contain actions for both IAM and enterprise projects can be used and take effect for both IAM and Enterprise Management. Policies that only contain actions for IAM projects can be used and only take effect for IAM.

The check mark (√) and cross symbol (x) indicate that an action takes effect or does not take effect for the corresponding type of projects.

Permission	API	Action	Related Action	IAM Project	Enterprise Project
Querying a trace list	GET /v3/{project_id}/traces	cts:trace:list	-	√	x
Querying a tracker	GET /v3/{project_id}/trackers	cts:tracker:list	obs:bucket:GetBucketAcl obs:bucket:ListAllMyBuckets	√	x
Creating a tracker	POST /v3/{project_id}/tracker	cts:tracker:create	lts:topics:list lts:topics:create lts:groups:list lts:groups:create obs:bucket:CreateBucket obs:bucket:HeadBucket obs:bucket:GetLifecycleConfiguration obs:bucket:PutLifecycleConfiguration obs:bucket:GetBucketAcl obs:bucket:PutBucketAclkms:cmk:list	√	x
Modifying a tracker	PUT /v3/{project_id}/tracker	cts:tracker:update	lts:topics:list lts:topics:create lts:groups:list lts:groups:create obs:bucket:CreateBucket obs:bucket:HeadBucket obs:bucket:GetLifecycleConfiguration obs:bucket:PutLifecycleConfiguration obs:bucket:GetBucketAcl obs:bucket:PutBucketAcl kms:cmk:list	√	x
Deleting a tracker	DELETE /v3/{project_id}/trackers	cts:tracker:delete	-	√	x
Querying the tracker quota	GET /v3/{project_id}/quotas	cts:quota:get	-	√	x