That was meant to be an example really, to aim at something less automatic and complex like kubernetes but still automated. You might also consider using conta

That was meant to be an example really, to aim at something less automatic and complex like kubernetes but still automated. You might also consider using containers without kubernetes. Keep the same AMI, package your app as a docker container, make VMs download and run the latest release from a private docker registry on startup. Publish a new docker image tagged as latest. Now you can rollout your autoscaling groups without running packer and ansible.