IMHO Kubernetes only makes sense if you can, or want to, run multiples of things that are either stateless or clustered in some way, or another copy for a diffe

IMHO Kubernetes only makes sense if you can, or want to, run multiples of things that are either stateless or clustered in some way, or another copy for a different purpose. Run two instances of something if you want to survive a single crash or a node update. Run another copy of your application stack if you want to try out a different version or config. Without looking at the docs, most of the things in your list are single-instance stateful applications, so unless you plan to run another copy of them for a different purpose, K8S is overkill.