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)


Microbadger is a great tool when you are looking at shipping your containers or images around. It will take into account everything that is going on in every single layer of a particular Docker image and give you the output of how much weight it has in terms of actual size or the amount of disk space it will take up.

This page is what you will be presented with when navigating to the Microbadger website,

You can search for images that are on Docker Hub to have Microbadger provide information about that image back to you, or you can load up a sample image set if you are looking to provide some sample sets, or to see some more complex setups.

In this example, we are going to search for the masteringdockerthirdedition/dockerfiles-example image that we pushed earlier in the chapter, and select the latest tag. As you can see from the following...