/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

brew cask install vagrant
brew cask install virtualbox

vagrant up

kubeadm init --config=kubeadm.config

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

kubectl taint nodes --all node-role.kubernetes.io/master-

kubectl create -f flannel.yaml

kubectl cluster-info
kubectl get cs
kubectl get nodes

# join node
kubeadm join --token <token> <master-ip>:<master-port> --discovery-token-ca-cert-hash sha256:<hash>

# list token
kubeadm token list

# discovery-token-ca-cert-hash
root@ubuntu:/home/cong# openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //'

kubeadm token create --print-join-command

kubectl drain <node name> --delete-local-data --force --ignore-daemonsets
kubectl delete node <node name>