aws gamelift cli how to wait for active fleet before changing alias.

Hey!

While I don't think there's an inbuilt mechanism via the AWS CLI to do this, you should be able to write a command line script that polls periodically on the fleet status using the describe-fleet-attributes command. Note that this API has low call limits per second, so you should additionally ensure you have appropriate backoff and retry mechanisms in place to avoid getting throttled.

Thanks!