Introduction

You can use Identity and Access Management (IAM) for fine-grained permissions management of your Organizations. If your HUAWEI ID does not need individual IAM users, you can skip this section.

New IAM users do not have any permissions assigned by default. You need to first add them to one or more groups and attach policies or roles to these groups. The users then inherit permissions from the groups and can perform specified operations on cloud services based on the permissions they have been assigned.

You can grant users permissions by using roles and policies. Roles are provided by IAM to define service-based permissions that match users' job 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.

If you want to allow or deny the access to an API, use policy-based authorization.

An account has all the permissions required to call all APIs, but each IAM user must be assigned the required permissions before they can start calling APIs. The permissions required for calling an API are determined by the actions supported by the API. Only users who have been granted permissions can call the API successfully. For example, if an IAM user wants to query OU information using an API, the user must have been granted permissions that allow the organizations:folders:get action.