If system policies do not meet your business requirements, you can configure custom policies to implement the principle of least privilege. You can use custom policies to achieve fine-grained control over permissions and improve resource access security. This topic describes how to configure custom policies for Dedicated Host (DDH).
What is a custom policy?
Resource Access Management (RAM) policies are classified into system policies and custom policies. You need to maintain custom policies.
After you create a custom policy, you need to attach it to a RAM user, a user group, or a RAM role so that the permissions specified in the policy can be granted to the principal.
You can delete a RAM policy that is not attached to a principal. If the RAM policy is attached to a principal, you must detach the RAM policy from the principal before you can delete the RAM policy.
Custom policies support version control. You can manage custom policy versions based on the version management mechanism provided by RAM.
References
Authorization information
To use a custom policy, you must understand the permission control requirements of your business and the authorization information about DDH. For more information, see RAM authorization.