Usually when I use these types of tools I'm building immutable infrastructure where a golden image gets built and an existing app data volume gets attached to a

Usually when I use these types of tools I'm building immutable infrastructure where a golden image gets built and an existing app data volume gets attached to a new OS image (same workflow as Docker containers but more access to kernel/hardware) Puppet doesn't work well for that. I've seen it come up in auditing scenarios since the agent can effectively report if the instance is still in the correct config state.