This was really interesting. I'm thinking about moving to Kubernetes and have wondered how to gracefully deal with websocket connections.

I'm curious though, if the rollout was over a couple of hours for example, why would reconnections be that big of a problem? We host about 10,000+ websocket on a $20 VPS, and the Go server hosting it crashes from time to time. A surge of 10,000 reconnections instantly afterwards has never lasted for more than a minute or so, so why is it so bad? Moments of peak load aren't that big of a deal, or?