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How to Install Kubernetes on an Ubuntu VM

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How to Install Kubernetes on an Ubuntu VM

Want to get your favorite orchestration tool (assuming it's Kubernetes, of course) up and running on an Ubuntu VM? Here's a step-by-step guide.

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This article is a quick, crisp, and to-the-point method of how to set up Kubernetes on an Ubuntu VM. The steps below will help you get started with Kubernetes on your laptop with the help of Minikube. Minikube is a tool that runs a single-node Kubernetes cluster inside a VM (VirtualBox in this article) on your laptop.

In this article, we will look at the steps for installing Kubernetes within an Ubuntu VM.  The steps remain almost same for Ubuntu OS with the difference of how you enable the virtualization at the BIOS level.

  • Install VirtualBox (as part of installing a hypervisor)

  • Enable Virtualization

  • Install Kubectl

  • Install Minikube

  • Start/stop Kubernetes

Install VirtualBox

First and foremost, a hypervisor needs to be installed. We will install Virtualbox. Detailed instructions can be found on the VirtualBox installation page. For Linux distributions, the instructions can be found on this page, VirtualBox for Linux.

Open the sources.list file:

sudo vi /etc/apt/sources.list


Place the following command in the sources.list file:

deb http://download.virtualbox.org/virtualbox/debian xenial contrib


In place of “xenial” (Ubuntu 16.04), use the following for other versions of Linux/Ubuntu:

  • zesty: Ubuntu 17.04

  • yakkety: Ubtuntu 16.10

  • Vivid: Ubuntu 15.04

  • Trusty: Ubuntu 14.04

  • Utopic: Ubuntu 14.10

Execute the following commands to install VirtualBox:

sudo apt-get update
sudo apt-get install virtualbox-5.2


Enable Virtualization

Click on processors and check the box Virtualize Intel VT-x… as shown in the diagram below.

Enable Virtualization on Ubuntu VM

Figure 1. Enable Virtualization on the Ubuntu VM

Install Kubectl

Download Kubectl:

# The command below installs Kubectl version 1.9.0
curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.9.0/bin/linux/amd64/kubectl
# For stable version, use following command:
curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl


Once you're done with one of the above commands, execute the following command to move kubectl to /usr/local/bin:

chmod +x ./kubectl
sudo mv ./kubectl /usr/local/bin/kubectl


Install Minikube

curl -Lo minikube https://storage.googleapis.com/minikube/releases/v0.24.1/minikube-linux-amd64 && chmod +x minikube && sudo mv minikube /usr/local/bin/
minikube version


Start/Stop Kubernetes

Start Minikube:

minikube start


The following screenshot represents the process:

Minikube Start

Figure 2. Minikube Start


Access the Kubernetes Dashboard. The command below will open up a browser:

minikube dashboard


The following page shows up in the browser:

kubernetes dashboard

Figure 3. Kubernetes Dashboard


Stop Kubernetes:

minikube stop


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Topics:
cloud ,kubernetes ,ubuntu ,virtual machine ,tutorial

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