Hi, I'm in the process of migrating my home server estate to a HA (High Availability) cluster. For, that I'm trialing now with Docker swarm and K8. My Home Assistant is currently sitting in Docker on one of the servers in the soon to be cluster. The three nodes are all fanless Intel J1800 or n3050 with 8G of RAM which will also need to manage other stuff like photo gallery, personal web sites and etc...

So, is there anyone who runs HA in HA (he-he)? I'm curiuos what tooling you have used and how it's impelemented. There are things that come up to my mind which I don't have a definitive aswer for, like:

• How would HA's event database behave in a shared persistent storage
• the choice of MQTT broker in HA mode