Book Image

Mastering Docker - Third Edition

By : Russ McKendrick, Scott Gallagher
Book Image

Mastering Docker - Third Edition

By: Russ McKendrick, Scott Gallagher

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 an impact on the world of web development. But how can you make sure you're keeping up with the innovations it's driving, or be sure you're using it to its full potential? Mastering Docker shows you how; this book not only demonstrates how to use Docker more effectively, but also helps you rethink and reimagine what's possible with it. You will cover concepts such as building, managing, and storing images, along with best practices to make you confident, before delving more into Docker security. You'll find everything related to extending and integrating Docker in new and innovative ways. Docker Compose, Docker Swarm, and Kubernetes will help you take control of your containers in an efficient manner. By the end of the book, you will 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 (17 chapters)

Enabling Kubernetes

Docker has made the installation process extremely simple. All you need to do to enable Kubernetes support is open Preferences and click on the Kubernetes tab:

As you can see, there are two main options. Tick the Enable Kubernetes box and then select Kubernetes as the default orchestrator. Leave Show systems containers unticked for now; we look at this in a little more detail once we have enabled the service. Clicking Apply will pop up the following message:

Hitting the Install button will download the required containers needed to enable Kubernetes support on your Docker installation:

As mentioned in the first dialogue box, it will take a short while for Docker to download, configure, and launch the cluster. Once complete, you should see a green dot next to Kubernetes is running:

Open a Terminal and run the following command:

$ docker container ls -a