def do_start_role(self, role):
        """
        Start a role
        Usage:
            > start_role <role>     Restarts this role
        """
        if not role:
            return None

        if not self.has_cluster():
            return None

        if '-' not in role:
            print("Please enter a valid role name")
            return None

        try:
            service = api.get_cluster(self.cluster).get_service(role.split('-')[0])
            service.start_roles(role)
            print("Starting Role")
        except ApiException:
            print("Error: Role or Service Not Found")
Start a role
        Usage:
            > start_role <role>     Restarts this role