Introduction to DevOps

The aim of this chapter is to quickly paint a big-picture of what Docker is all about before we dive deeper into later chapters.

This chapter will give you some hands-on experience and a high-level view of images and containers. The goal is to prepare you for more detail in the upcoming chapters.

We’ll break 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 and runs through taking application source code, building it into a container image, and running it as a container.