alt Hacker NewsWe run everything on VM just for flexibility. Want to stand up a new machine for testing? Boom, run the script, new Ubuntu server. We need to decommission a machine. Shutdown all the guests, move them over to new machine and start them.
Sure, most of what we do is very cattle and we could run on bare hardware but why not take advantage of easy to add flexibility.
I'm not sure I follow. Ideally your bare metal machines have an easy bare OS with some config that is easy to repave, and are ephemeral-ish (not a lot of state).
Your "machine for testing" would be a container. Decommissioning a container is easy. Decommissioning a physical machine only happens when it's obsolete.