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.

We’ll break this chapter into two:

• The Ops perspective
• The Dev perspective

In the Ops Perspective, we’ll download an image, start a new container, log in to the new container, run a command inside of it, and then destroy it.

In the Dev Perspective, we’ll focus more on the app. We’ll clone some app-code from GitHub, inspect a Dockerfile, containerize the app, and run it as a container.