Grant permission to tag resources during creation

Some resource-creating Amazon FSx API actions enable you to specify tags when you create the resource. You can use resource tags to implement attribute-based access control (ABAC). For more information, see What is ABAC for AWS in the IAM User Guide.

To enable users to tag resources on creation, they must have permissions to use the action that creates the resource, such as fsx:CreateFileSystem or fsx:CreateBackup. If tags are specified in the resource-creating action, Amazon performs additional authorization on the fsx:TagResource action to verify if users have permissions to create tags. Therefore, users must also have explicit permissions to use the fsx:TagResource action.

The following example demonstrates a policy that allows users to create file systems and apply tags to file systems during creation in a specific AWS account.

{
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
         "fsx:CreateFileSystem",
         "fsx:TagResource"         
      ],
      "Resource": "arn:aws:fsx:region:account-id:file-system/*"
    }
  ]
}

Similarly, the following policy allows users to create backups on a specific file system and apply any tags to the backup during backup creation.

{
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
         "fsx:CreateBackup"
      ],
      "Resource": "arn:aws:fsx:region:account-id:file-system/file-system-id*"
    },
    {
      "Effect": "Allow",
      "Action": [
         "fsx:TagResource"
      ],
      "Resource": "arn:aws:fsx:region:account-id:backup/*"
    }
  ]
}

The fsx:TagResource action is only evaluated if tags are applied during the resource-creating action. Therefore, a user that has permissions to create a resource (assuming there are no tagging conditions) does not require permissions to use the fsx:TagResource action if no tags are specified in the request. However, if the user attempts to create a resource with tags, the request fails if the user does not have permissions to use the fsx:TagResource action.

For more information about tagging Amazon FSx resources, see Tag your Amazon FSx resources. For more information about using tags to control access to FSx resources, see Using tags to control access to your Amazon FSx resources.