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

The Docker Bench Security application

In this section, we will cover the Docker Bench Security application that you can install and run. The tool will inspect the following:

  • The host configuration
  • The Docker daemon configuration files
  • Container images and build files
  • The container runtime
  • The Docker security operations Docker Swarm configuration

Looks familiar? It should, as these are the same items that we reviewed in the previous section, only built into an application that will do a lot of the heavy lifting for you. It will show you what warnings arise within your configurations and will provide information on other configuration items, and even the items that have passed the test.

Now, we will look at how to run the tool, a live example, and what the output of the process means.

Running the tool on Docker for macOS and Docker for Windows

Running the tool is simple. It's already been packaged for us, inside a Docker container. While you...