see host-install
https://shellhacks.com/kubectl-get-current-list-all-namepaces-in-kubernetes/
https://github.com/ahmetb/kubectx?tab=readme-ov-file#apt-debian
https://www.startkubernetes.com/blog/k8s_master_and_worker_nodes
https://learncloudnative.com/blog/2020-05-26-getting-started-with-kubernetes-part-1
https://www.golinuxcloud.com/kubernetes-add-node-to-existing-cluster/
https://kubernetes.io/docs/concepts/configuration/overview/