Cloud Access Management Authorizing Sub-account Read-only Access to CVMs-Business Use Cases-Help & Documentation-Tencent Cloud

Under the corporate account CompanyExample (ownerUin is 12345678), there is a sub-account named Developer. This sub-account requires the permission to query CVM instances of the CompanyExample's CVM service, but does not have the permissions of creation, deletion, or powering-on/off.
Scenario A:
The corporate account CompanyExample directly grants the preset policy QcloudCVMInnerReadOnlyAccess to the sub-account Developer. For the method of authorization, please see Authorization Management.
Scenario B:
1. Create a policy through policy syntax.
 {
    "version": "2.0",
    "statement":[
     {
         "effect": "allow",
         "action": [
                "cvm:Describe*",
                "cvm:Inquiry*"
                ],
         "resource": "*"
     }
    ]
}
2. Grant this policy to the sub-account. For the authorization method, please see Authorization Management.