Managing access to data sources - Amazon CloudWatch
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Managing access to data sources

CloudWatch uses Amazon CloudFormation to create the required resources in your account. We recommend that you use the cloudformation:TemplateUrl condition to control access to Amazon CloudFormation templates when you grant CreateStack permissions to IAM users.

Warning

Any user that you grant data source invoke permission to can query metrics from that data source even if that user does not have direct IAM permissions to the data source. For example, if you grant lambda:InvokeFunction permissions on a Amazon Managed Service for Prometheus data source Lambda function to a user, that user will be able to query metrics from the corresponding Amazon Managed Service for Prometheus workspace even if you didn't grant them direct IAM access to that workspace.

You can find template URLs for data sources on the Create stack page in the CloudWatch Settings Console. 

{
  "Version":"2012-10-17",
  "Statement":[
    {
      "Effect" : "Allow",
      "Action" : [ "cloudformation:CreateStack" ],
      "Resource" : "*",
      "Condition" : {
        "StringEquals" : {
          "cloudformation:TemplateUrl" : [ data-source-template-url ]
        }
      }
    }
  ]
}

For more information about controlling Amazon CloudFormation access, see Controlling access with Amazon Identity and Access Management