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)
1
Section 1: Getting Up and Running with Docker
8
Section 2: Clusters and Clouds
16
Section 3: Best Practices

Using Docker App

Before we start this section, I should issue the following warning:

Important note

The feature we are going to discuss is very much an experimental one. It is in its very early stages of development and should not be considered any more than a preview of an upcoming feature.

Because of its experimental nature, I am only going to cover the usage of Docker App on macOS. However, before we enable it, let's discuss what exactly is meant by a Docker app. While Docker Compose files are really useful when it comes to sharing your environment with others, you may have noticed that there is one quite crucial element we have been missing so far in this chapter, and that is the ability to actually distribute your Docker Compose files in a similar way to how you can distribute your Docker images.

Docker has acknowledged this and is currently working on a new feature called Docker App, which it hopes will fill this gap.

Docker App is currently a command-line...