Introduction to DevOps

This chapter will quickly give you a big picture of Docker. It will give you some hands-on experience and a high-level view of images and containers, preparing you for more details in the upcoming chapters.

We’ll divide this chapter into two parts:

• The Ops perspective
• The Dev perspective

The Ops perspective focuses on starting, stopping, deleting containers, and executing commands inside them.

The Dev perspective focuses more on the application side of things, including how to take application source code, build it into a container image, and run it as a container.

These two perspectives will give you a good idea of what Docker is all about and how the major components fit together.