Kubernetes Cluster CleanUp and Remove

How to create and join new Node

Setting File Permissions to 777

chmod 777 [FILENAME]

in master node

kubeadm token create 

openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | \
   openssl dgst -sha256 -hex | sed 's/^.* //'

sudo kubeadm join [Master Host IP]:6443 --token [Your Token] \
        --discovery-token-ca-cert-hash sha256:[Your hash] 

command, verify that the node has joined the cluster successfully :

kubectl get nodes -o wide