Following the docs at https://wikitech.wikimedia.org/wiki/Portal:Toolforge/Admin/Deploying_k8s
- For workers, we can introduce the k8s keyword somewhere in the name and single digit. tools-k8s-worker-1, tools-k8s-worker-12
- For control servers, we can introduce a new puppet prefix for control nodes. Something like tools-k8s-control-1, tools-k8s-control-3
- For haproxy servers, use tools-k8s-haproxy-x
- For etcd servers, we are already using tools-k8s-etcd-x, so we will introduce some puppet switch if jessie then old role; if buster then new role