instanceRoleArn
A unique identifier for an IAM role with access permissions to other Amazon Web Services services. Any application that runs on an instance in the fleet--including install scripts, server processes, and other processes--can use these permissions to interact with Amazon Web Services resources that you own or have access to. For more information about using the role with your game server builds, see Communicate with other Amazon Web Services resources from your fleets. This fleet property can't be changed after the fleet is created.