Kubernetes - Drain, Uncordon, Delete Nodes

How to get out a node from a cluster for a maintenance ?

See which pods are running on which nodes:

kubectl get pods -o wide

Evict the pods on a node:

kubectl drain [node_name] --ignore-daemonsets

Watch as the node changes status:

kubectl get nodes -w

Schedule pods to the node after maintenance is complete:

kubectl uncordon [node_name]

Remove a node from the cluster:

kubectl delete node [node_name]

Generate a new token:

sudo kubeadm token generate

List the tokens:

sudo kubeadm token list

Print the kubeadm join command to join a node to the cluster:

sudo kubeadm token create [token_name] --ttl 2h --print-join-command

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