Setting up the Kubernetes cluster on Linux via kubeadm

In this recipe, we are going to show how to create a Kubernetes cluster along with kubeadm (https://github.com/kubernetes/kubeadm) on Linux servers. Kubeadm is a command-line tool that simplifies the procedure of creating and managing a Kubernetes cluster. Kubeadm leverages the fast deployment feature of Docker, running the system services of the Kubernetes master and the etcd server as containers. When triggered by the kubeadm command, the container services will contact kubelet on the Kubernetes node directly; kubeadm also checks whether every component is healthy. Through the kubeadm setup steps, you can avoid having a bunch of installation and configuration commands when you build everything from scratch.