How to Rejoin Kubernetes Nodes

Get the node join command from the Kubernetes Master

kubeadm token create --print-join-command

This will output something like:

kubeadm join 192.168.XX.XX:6443 --token abcdef.012xxxxxxxcdef \ 
--discovery-token-ca-cert-hash sha256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 

Then on each node (kubenode1, kubenode2), run that command as root.

✅ Before You Join

On each node, make sure to:

kubeadm reset -f rm -rf /etc/kubernetes/pki systemctl restart kubelet