Book Image

Mastering Docker, Fourth Edition - Fourth Edition

Book Image

Mastering Docker, Fourth Edition - Fourth Edition

Overview of this book

Docker has been a game changer when it comes to how modern applications are deployed and created. It has now grown into a key driver of innovation beyond system administration, with a significant impact on the world of web development. Mastering Docker shows you how you can ensure that you're keeping up with the innovations it's driving and be sure you're using it to its full potential. This fourth edition not only demonstrates how to use Docker more effectively but also helps you rethink and reimagine what you can achieve with it. You'll start by building, managing, and storing images along with exploring best practices for working with Docker confidently. Once you've got to grips with Docker security, the book covers essential concepts for extending and integrating Docker in new and innovative ways. You'll also learn how to take control of your containers efficiently using Docker Compose, Docker Swarm, and Kubernetes. By the end of this Docker book, you’ll have a broad yet detailed sense of what's possible with Docker and how seamlessly it fits in with a range of other platforms and tools.
Table of Contents (22 chapters)
Section 1: Getting Up and Running with Docker
Section 2: Clusters and Clouds
Section 3: Best Practices

Deploying Kubernetes using MicroK8s

Next up, we have MicroK8s by Canonical who, as you may remember from Chapter 6, Docker Machine, Vagrant, and Multipass, are the creators of Multipass and also the Linux distribution Ubuntu.

The mantra of the MicroK8s project is to provide a lightweight Kubernetes node with only a minimal number of basic services enabled by default while providing additional services as needed via plugins.

Installing MicroK8s

Unlike Minikube and Kind, the standalone binary for MicroK8s only works on Linux-based machines. Because of this, we are going to use Multipass to launch a virtual machine and use that as our installation target.

To launch the virtual machine, we need to run the following:

$ multipass launch --name microk8s

Once the virtual machine is up and running, we can then enable and install MicroK8s with the following command:

$ multipass exec microk8s -- \
	/bin/bash -c 'sudo snap install microk8s --classic'

Once installed...