Build and Host the Image

You’ll need a Docker account if you want to host the containerized app on Docker Hub. Personal accounts are free and enable you to follow along. Point your web browser to hub.docker.com and complete the sign-up form.

Containerize the Application

Containerizing an app is the process of packaging the application and all dependencies into a container image. When the process is complete, the app is said to be containerized.

The terms container image and containerized app mean the same thing.