My db is my cluster. It's been stable for years but I'm afraid to touch it. There's a long outstanding issue in k8s that makes PVs harder to resize than it should be. And they're just more complicated. Trying to move to managed MySQL now. It'll cost me a bunch more but at least I get a fail over node which I don't know how to set up myself... Still no master-master though, apparently that's not an option.