serviceRoleArn

The service role that the AWS OpsWorks CM service backend uses to work with your account. Although the AWS OpsWorks management console typically creates the service role for you, if you are using the AWS CLI or API commands, run the service-role-creation.yaml AWS CloudFormation template, located at https://s3.amazonaws.com/opsworks-cm-us-east-1-prod-default-assets/misc/opsworks-cm-roles.yaml. This template creates a CloudFormation stack that includes the service role and instance profile that you need.