How to add a New Worker Node to a existing kubernetes Cluster

How to add a  New Worker Node to a existing kubernetes Cluster

Lets assume that after deleting a node we are planning to add a new node to our Kubernetes Cluster. We might don’t have the “kubeadm join” command and the token with us. We can follow the below procedure to generate a new token and add the worker node to the cluster

To view the token list execute the below command

kubeadm token list

Generate a token with below command, if you don’t have a listed token

kubeadm token generate 

Take the generated token and create a command to join the worker node with below command

kubeadm token create [GENERATED_TOKEN] --ttl 12h --print-join-command

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Kubernetes Node Management : New token with a join command 

Issue this command in the worker node and it will be joining to the cluster.

kubeadm join <Master node IP>:6443 --token XXXXXXXXXXXXXX --discovery-token-ca-cert-hash sha256:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXx