Every Node

$ chmod +x kubeadm_installation.sh
$ source kubeadm_installation.sh

Only Master Node

$ sudo kubeadm init --pod-network-cidr=10.244.0.0/16 --apiserver-advertise-address={__REPLACE_WITH_PRIVATE_IP__MASTER}
$ mkdir -p $HOME/.kube
$ sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
$ sudo chown $(id -u):$(id -g) $HOME/.kube/config
$ kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
$ kubectl get nodes

• Check TOKEN_NUM

$ kubeadm token list

• Check HASH_NUM

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

• Bash Completion at Master Node

$ chmod +x k8s_bash-completion.sh
$ source k8s_bash-completion.sh

Only Worker Node

$ sudo kubeadm join {__REPLACE_WITH_PRIVATE_IP__MASTER}:6443 --token {TOKEN_NUM} --discovery-token-ca-cert-hash sha256:{HASH_NUM}