title: Install Kubernetes on VPS server
body: <p>I am planning to setup a kubernetes cluster, that looks as follows: 
  <a href="https://i.stack.imgur.com/ELhad.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ELhad.png" alt="enter image description here"></a></p>
  
  <p>As you can see on the image, the cluster will consist of 3 Ubuntu 18.04 Virtual Private Server, one is the master and the other two servers are nodes. 
  For the kubernetes installation, I am going to choose <a href="https://kubespray.io/#/" rel="nofollow noreferrer">kubespray</a>. 
  First, I have to care about, that the 3 VPS can communicate with each other. That is the first question, what do I have to do, that the 3 VPS server can
  communicate to each other?  </p>
  
  <p>The second question is, how and where do I have to install kubespray? I would guess on the master server.</p>