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

What does production look like?

For the final section of this chapter, we are going to discuss what production should look like. This section isn't going to be as long as you think it will be, as the sheer number of options that are available means that it would be impossible to cover them all. You should also already have a good idea of what would work best for you based on the previous sections and chapters.

Instead, we are going to be looking at some questions that you should be asking yourself when planning your environments.

Your Docker hosts

Docker hosts are the key component of your environment. Without these, you won't have anywhere to run your containers. As we have already seen in previous chapters, there are a few considerations to bear in mind when it comes to running your Docker hosts.

The first thing you need to take into account is that, if your hosts are running Docker, they should not run any other services.

Mixing of processes

You should...