Summary

In this chapter, we have covered a lot of ground. At this point, you should understand Docker from a hands-on perspective. We started with Docker images, how to use a Dockerfile to build Docker images, the components and directives of the Dockerfile, and how to create efficient images by following some best practices. We also discussed flattening Docker images and improving container security using distroless images. Finally, we discussed Docker registries, how to run a private Docker registry on a Docker server, and how to use other turnkey solutions, such as Sonatype Nexus and JFrog Artifactory.

Here is a quick summary of some best practices for managing Docker containers effectively and efficiently:

• Use Official Images: Whenever possible, start with official Docker images from reputable sources such as Docker Hub. These images are well-maintained, regularly updated, and often come with better security practices.
• Minimize Containers: Follow the “one...