Kubeadm cluster creation

* install container runtime

* Installing kubeadm, kubelet and kubectl
sudo apt-get update && sudo apt-get install -y apt-transport-https curl
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
cat <<EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list
deb https://apt.kubernetes.io/ kubernetes-xenial main
EOF
sudo apt-get update
sudo apt-get install -y kubelet kubeadm kubectl
sudo apt-mark hold kubelet kubeadm kubectl

* run in master node
kubeadm init --apiserver-advertise-address=192.168.56.2

* run in master node
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
* kubeadm token create --print-join-command
run this command in worker nodes
kubeadm join 10.0.2.15:6443 --token js3b7q.zhbspqkmosz34zld     --discovery-token-ca-cert-hash sha256:0ca7c9ba4e0e83506af68fc12fbab65d8b800d97522206a305d59591e6c3a784

* create networking add-on (weave-net)
kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"