Home Assistant on kubernetes k8s

I wonder if there is a (more or less detailed) description how to run HA in a kubernetes environment on a RPi?
I found Kubernetes Helm Chart, but it is a bit tedious to get the working facts in a longer thread.

What’s about the HA database (i.e. mariadb)? Can this be deployed and connected in k8s, too and how?
Are there tricks necessary to connect to sensors?

(Actually I run my HA in docker on ubuntu 20.04 and would like to use that to get more experienced with k8s.)