This tutorial shows you how to build and deploy a simple, multi-tier web application using Kubernetes and Docker. This example consists of the following components:
A single-instance Redis master to store guestbook entries Multiple replicated Redis instances to serve reads Multiple web frontend instances  Objectives  Start up a Redis master. Start up Redis slaves. Start up the guestbook frontend. Expose and view the Frontend Service. Clean up.  Before you begin You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster.