I'm in a similar boat and only somewhat agree. The gist of my post was that this exists but maybe just use Kubernetes anyway. I don't entirely agree with your

I'm in a similar boat and only somewhat agree. The gist of my post was that this exists but maybe just use Kubernetes anyway. I don't entirely agree with your statement about zero-downtime instance replacement though. We built our terraform around doing one-at-a-time instance replacement and removing/adding nodes in Hashicorp Raft clusters is pretty much the easiest thing I've ever done with infrastructure. That's really always been the biggest selling point around Hashicorp's stuff for me. They made bootstrap and maintenance operations easy enough that a caveman could do it. Even recovering from problems isn't terribly hard unless you're already doing something stupid (Roblox outage). I also have deployed and managed _hundreds_ of these over the last 8 years or so and I'm not really having the same problems that you do. But we don't upgrade to the latest and greatest because it _does_ take them a few versions to get their feature launches correct. This is mainly a Nomad problem now though -- consul and vault are pretty brainless to operate. Still though, we _also_ use Kubernetes and I prefer it. Most of our software engineers don't though because they don't actually want to take the time to understand it, they just want to run binaries and forget about it.