> You are running this sequentially and by hand?! What happens when the server is dead and you need a new one? You provision it by hand and go through the stages to get it into the state where it can accept the same cattle command?

Depends on the change, but generally something like that. Change + Verify. It really doesn't take much more than 10-15 minutes for any given change. We've been at a stable state for about 2 years so changes are rare at this point, other than our security update cycle.

For rebuilds, we pull periodic disk images (monthly + any major changes) and can stand up a new server in about 20 minutes, almost all of which is hands-off.