Traefik also supports running on K8s, yes.

On that note, if you’re moving to K8s, I recommend looking into K8s Gateway API, it’s the successor to the old Ingress API. There are other, more complete, implementations of it than Traefik. See https://gateway-api.sigs.k8s.io/

Caddy or Traefik, depending on whether you want quick and simple (Caddy), or integration with docker, so you don’t have to write config files by hand (Traefik)

Mayastor or Linstor, Ceph requires too much CPU for these nodes