Comment 4 for bug 1694241

> a tool which queries a registry and generates a real overcloud-containers.yaml based on discovered latest version tags.

+1 this is what we need for updates to work, in addition to detecting when the config generated by docker-puppet.py changes and thus the container needs restarting (https://review.openstack.org/#/c/467581/ is my WIP patch that will do that)

> So does paunch replace docker-puppet.py

No, it currently only replaces the docker-cmd hook, see https://review.openstack.org/#/c/462211