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)

Using other base operating systems

You don't have to use the default operating systems with Docker Machine; it does come with provisioners for other base operating systems, including ones that are geared toward running containers. Before we finish the chapter, we are going to take a look at launching one of these, CoreOS.

The distribution we are going to look at has just enough of an operating system to run a kernel, networking stack, and containers, just like Docker's own MobyOS, which is used as the base for Docker for Mac and Docker for Windows.

While CoreOS supports its own container runtime, called RKT (pronounced Rocket), it also ships with Docker. However, as we will see, the version of Docker currently shipping with the stable version of CoreOS is a little out of date.

To launch the DigitalOcean-managed coreos-stable version, run the following command:

$ docker...