[BB-1216] Ironwood changes
Created by: lgp171188
- Add the new ansible variable which enables installing the
aws
role in Ironwood. Retain the old one for backward compatibility till all the instances are upgraded to Ironwood. - Add the new ansible variable for disabling celery heartbeats as merged upstream. Retain the old one for backward compatibility till all the instances are upgraded to Ironwood.
Testing instructions:
- Spawn an appserver with this PR and verify that it works correctly. There is an instance spawned for testing the configuration branch PR with this PR deployed on stage.