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Cross Account Execution Role

This Role resides in the Member AWS Account(s) and is assumed by the Main AWS Account.

When Creating a Member AWS Account(s) in the organization of the Master AWS Account(s), this role is created by the solution/packages/cfn-templates/lib/templates/onboard-account.yaml template.

Trust Policy​

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "AWS": [
          "arn:aws:iam::${MainAccount}:role/${ApiHandlerRole}",
          "arn:aws:iam::${MainAccount}:role/${WorkflowLoopRunnerRole}",
          "arn:aws:iam::${MemberAccount}:root"
        ]
      },
      "Action": "sts:AssumeRole",
      "Condition": {
        "StringEquals": {
          "sts:ExternalId": ${ExternalId}
        }
      }
    }
  ]
}

The principals listed above are:

  • ApiHandlerRole: A role in the Main AWS account associated with the Service Workbench backend API execution.
  • WorkflowLoopRunnerRole: A role in the Main AWS account associated with background workflow execution as initiated by backend API calls.
  • The Member AWS account itself.

Permissions​

These policies support running analytics.

CloudFormation​

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Action": [
        "cloudformation:CreateStack",
        "cloudformation:DeleteStack",
        "cloudformation:DescribeStacks",
        "cloudformation:DescribeStackEvents"
      ],
      "Resource": "*",
      "Effect": "Allow"
    }
  ]
}

Cost Explorer​

{
  "Statement": {
    "Action": ["ce:*"],
    "Resource": "*",
    "Effect": "Allow"
  }
}
tip

You will need to ensure that Cost Explorer has been enabled in the member account. See here for more information.

EC2​

{
  "Statement": {
    "Action": ["ec2:*"],
    "Resource": "*",
    "Effect": "Allow"
  }
}

EMR​

{
  "Statement": {
    "Action": ["elasticmapreduce:*"],
    "Resource": "*",
    "Effect": "Allow"
  }
}

IAM​

{
  "Statement": {
    "Action": ["iam:*"],
    "Resource": "*",
    "Effect": "Allow"
  }
}

S3​

{
  "Statement": {
    "Action": ["s3:*"],
    "Resource": "*",
    "Effect": "Allow"
  }
}

SageMaker​

{
  "Statement": {
    "Action": ["sagemaker:*"],
    "Resource": "*",
    "Effect": "Allow"
  }
}

SSM​

{
  "Statement": {
    "Action": ["ssm:*"],
    "Resource": "*",
    "Effect": "Allow"
  }
}