Hologres:Grant permissions on Hologres to RAM users

Grant permissions on Hologres to a RAM user

1. Log on to the RAM console by using your Alibaba Cloud account.
2. In the left-side navigation pane, choose Identities > Users.
3. On the Users page, find the RAM user to which you want to attach the custom policy, and click Add Permissions in the Actions column.
4. Grant permissions to the RAM user.
   In the Add Permissions panel, set the parameters that are described in the following table.

   Parameter	Description
   Authorized Scope	Valid values: Alibaba Cloud Account Specific Resource Group
   Principal	The RAM user to which you want to grant permissions.
   Select Policy	Valid values: System Policy Custom Policy Note You can create custom policies based on your business requirements. You can attach a maximum of five policies at a time. To attach more policies, perform the operation multiple times.

   You can select System Policy or Custom Policy based on the following descriptions:

   • System Policy
     The following table describes the system policies that you can use to grant permissions on Hologres. If you attach all of these system policies to the RAM user, the RAM user can perform all operations in the Hologres console.

     Policy	Description
     AliyunHologresFullAccess	Grants full access permissions on Hologres. If you attach this policy to the RAM user, the RAM user can view the information about all instances and purchase instances in the Hologres console. Note To view user information on the User Management page in the Hologres console, you must attach the AliyunRAMReadOnlyAccess policy to the RAM user.
     AliyunBSSOrderAccess	Grants permissions to view, pay for, and cancel orders in the Billing Management console. If you attach this policy to the RAM user, the RAM user can upgrade or downgrade instance specifications and renew instances in the Hologres console.
     AliyunRAMReadOnlyAccess	Grants read-only permissions on RAM. If you attach this policy to the RAM user, the RAM user can view the information about the current users, groups, and permissions on the User Management page in the Hologres console.
     AliyunHologresReadOnlyAccess	Grants read-only permissions on Hologres. If you attach this policy to the RAM user, the RAM user can view the information about all instances but cannot manage the instances in the Hologres console. For example, the RAM user cannot modify the network configurations of instances.

     Note

     • If you purchase an instance as a RAM user, both the RAM user and the Alibaba Cloud account are superusers by default.
     • If you use an Alibaba Cloud account to purchase an instance, only the Alibaba Cloud account can use the instance by default. RAM users must be authorized by the Alibaba Cloud account before they can use the instance.
   • Custom Policy
     You can click Create Policy to create a custom policy based on your business requirements.

     On the Create Policy page, click the JSON tab. Then, configure the custom policy in the code editor.

     For example, you can execute the following statements:

     {
         "Statement": [
             {   // Grant a RAM user the permissions to perform all operations. After the permissions are granted, you do not need to set the permissions mentioned below. 
                 "Effect": "Allow",
                 "Action": "hologram:*", // Indicates that the RAM user has the permissions to perform all operations. 
                 "Resource": "acs:hologram:*:<Alibaba Cloud account ID>:instance/*" // Indicates that the RAM user can have access to instances in all regions. 
             },
             {   // Grant a RAM user the permissions to purchase or renew instances. 
                 "Effect": "Allow",
                 "Action": "hologram:*",
                 "Resource": "acs:hologram:cn-<region>:<Alibaba Cloud account ID>:instance/*"
             },
             {   // Grant a RAM user the permissions to delete instances. 
                 "Effect": "Allow",
                 "Action": "hologram:DeleteInstance",
                 "Resource": "acs:hologram:cn-<region>:<Alibaba Cloud account ID>:instance/*"
             },
             {   // Grant a RAM user the permissions to purchase instances. The RAM user can purchase instances only after the required permissions are granted. 
                 "Effect": "Allow",
                 "Action": "bss:PayOrder",
                 "Resource": "acs:hologram:cn-<region>:<Alibaba Cloud account ID>:instance/*"
             },
             {   // Grant a RAM user the permissions to view instance details. 
                 "Effect": "Allow",
                 "Action": "hologram:DescribeInstance",
                 "Resource": "acs:hologram:cn-<region>:<Alibaba Cloud account ID>:instance/*"
             },
             {   // Grant a RAM user the permissions to view the instance list. 
                 "Effect": "Allow",
                 "Action": "hologram:ListInstances",
                 "Resource": "acs:hologram:cn-<region>:<Alibaba Cloud account ID>:instance/*"
             },
             {   // Grant a RAM user the permissions to suspend instances. 
                 "Effect": "Allow",
                 "Action": "hologram:StopInstance",
                 "Resource": "acs:hologram:cn-<region>:<Alibaba Cloud account ID>:instance/*"
             },
             {   // Grant a RAM user the permissions to resume instances. 
                 "Effect": "Allow",
                 "Action": "hologram:ResumeInstance",
                 "Resource": "acs:hologram:cn-<region>:<Alibaba Cloud account ID>:instance/*"
             },
             {   // Grant a RAM user the permissions to view the monitoring metrics of instances. 
                 "Effect": "Allow",
                 "Action": "hologram:GetInstanceMetrics",
                 "Resource": "acs:hologram:cn-<region>:<Alibaba Cloud account ID>:instance/*"
             },
             {   // Grant a RAM user the permissions to modify the network configurations of instances. 
                 "Effect": "Allow",
                 "Action": "hologram:ModifyInstanceNetworkType",
                 "Resource": "acs:hologram:cn-<region>:<Alibaba Cloud account ID>:instance/*"
             }
         ],
         "Version": "1"
     }

     The following table describes the parameters in the syntax.

     Parameter	Description
     <region>	The region in which the Hologres instance resides. Example: beijing.
     <Alibaba Cloud account ID>	The ID of your Alibaba Cloud account.
     *	The IDs of all Hologres instances within your Alibaba Cloud account. You can also replace the asterisk (*) with the ID of a specific Hologres instance.

     For example, you can execute the following statement:

     acs:hologram:cn-beijing:4322xxxxx:instance/hhhgggxxxx

5. Click OK.
6. Click Complete.

FAQ about RAM user permissions on Hologres

FAQ about RAM user permissions on instances

• Why am I unable to connect to and use Hologres instances as a RAM user?
  • Issue description

    The following error message is returned: role "<role_name>" does not exist.

  • Cause

    After you create Hologres instances, only the Alibaba Cloud account and the RAM user that is used to purchase Hologres instances are superusers by default who create Hologres instances. Other RAM users must be granted the permissions to create Hologres instances by superusers before the RAM users can connect to and use the Hologres instances.

  • Solution
    • On the User Management page in the HoloWeb console, add users and grant the required permissions to the users. For more information, see Manage users.
    • Connect to the instance and execute the create user "<role_name>" statement. For more information, see Overview.
• Why am I unable to view the information on the User Management page and the Database Authorization page?
  • Issue description

    When I logged on to the Hologres console as a RAM user, I could not view the information on the User Management page and the Database Authorization page. The following error message is returned: You are not authorized to perform this operation. Contact the superuser to add your account to the current instance.

  • Cause

    The current RAM user does not have the development permissions on the instance. To view related information, you must be granted the specified development permissions on the instance.

  • Solution

    Grant the RAM user the development permissions on the instance by using your Alibaba Cloud account or as a superuser. For more information, see Grant the development permissions on a Hologres instance to RAM users.