kubeadm? You’re Probably Doing it WrongTL;DR: Use kubeadm to make your real cluster
I’ve come to realize that using kubeadm to bootstrap Kubernetes
clusters is truly the official way to create an on-prem production
cluster, period. There are many reasons people do not, including vendors
that supply their own, but one of the reasons (we just want to do our
own thing) might be a bad one. Upgrading between versions when not
using kubeadm is a lot more work. And even keeping things like etcd
out of the kubeadm administration scope can cause outages just for
having expired certificates (as it did to us).