[rtempaccount1]

complexity and overhead. Maintaining Kubernetes is non-trivial (IMO ofc). It has a 9 month support lifecycle, so you need to redeploy everything regularly. There are also API deprecations to deal with periodically, which if you're not keeping up with k8s developments, could be disruptive.

From a complexity perspective, you're adding more places for things to break. Instead of (say) running your apps in containers with Docker, you add pods, services and ingress as layers, which is more places for things to go wrong.