instanceRoleArn

A unique identifier for an IAM role that manages access to your Amazon Web Services services. With an instance role ARN set, any application that runs on an instance in this fleet can assume the role, including install scripts, server processes, and daemons (background processes). Create a role or look up a role's ARN by using the IAM dashboard in the Amazon Web Services Management Console. Learn more about using on-box credentials for your game servers at Access external resources from a game server. This fleet property can't be changed after the fleet is created.