In the previous chapter, I covered some Docker terms and concepts. This chapter builds on that with more practical, hands-on examples that will help you understand Docker firsthand, how it works, and why it’s grown so popular.
In addition to presenting basic Docker commands, I want to introduce fundamental concepts of images and containers. Images are immutable, and containers are ephemeral and persistent. I hesitate to type that because I know how academic and boring it sounds! When I started my container journey, I’ll admit that I wrestled ...