Master ROOT user only

 sudo kubeadm init --pod-network-cidr=172.16.0.0/16 --apiserver-advertise-address=192.168.0.100
...
   kubeadm join 10.0.1.2:6443 --token nnnnnnnnnnn --discovery-token-ca-cert-hash sha256:nnnnnnnnn <-- 잘 복사할것
...

예시

  ... ... 
Your Kubernetes control-plane has initialized successfully!

To start using your cluster, you need to run the following as a regular user:

  mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config

You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
  https://kubernetes.io/docs/concepts/cluster-administration/addons/

Then you can join any number of worker nodes by running the following on each as root:


kubeadm join 192.168.0.100:6443 --token 2bnj8x.t4odyls0snm1bq8b \
    --discovery-token-ca-cert-hash sha256:a51bfb3121d40d300e0eb5399610511852597bfb3a5391db37d535cce339f2f8

Master 일반 유저

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
export KUBECONFIG=$HOME/.kube/config
export KUBECONFIG=$HOME/.kube/config | tee -a ~/.bashrc

Master calico를 사용 일반 유저

kubectl apply -f https://docs.projectcalico.org/v3.1/getting-started/kubernetes/installation/hosted/rbac-kdd.yaml
kubectl apply -f https://docs.projectcalico.org/v3.1/getting-started/kubernetes/installation/hosted/kubernetes-datastore/calico-networking/1.7/calico.yaml

     잘모르겠다 이부분 
export kubever=$(kubectl version | base64 | tr -d '\n')
kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$kubever"