Welcome to Mastering Docker, Third Edition! This first chapter will cover the Docker basics that you should already have a pretty good handle on. But if you don't already have the required knowledge at this point, this chapter will help you with the basics, so that subsequent chapters don't feel as heavy. By the end of the book, you should be a Docker master, and will be able to implement Docker in your environments, building and supporting applications on top of them.
In this chapter, we're going to review the following high-level topics:
- Understanding Docker
- The differences between dedicated hosts, virtual machines, and Docker
- Docker installers/installation
- The Docker command
- The Docker and container ecosystem
