Summary: Containerizing an Application

This chapter taught us how to containerize an application. This is the process of building an app into a container image and running it as a container.

• We pulled some application source code from GitHub and used the docker init command to auto-generate a Dockerfile with instructions telling Docker how to build the app into a container image. We then used docker build to create the image, docker push to push it to Docker Hub, and docker run to run it as a container.