Docker for Rails Developers

What’s in This Book?

In Part I, you’ll learn everything you need to know about using Docker for local Rails development, including core concepts like containers and images. You’ll build up real-world knowledge, step by step, through a series of practical tasks. We’ll start with the basics—running a Ruby script and generating a new Rails project—before learning how to run our Rails app by building our own custom image.

We’ll quickly move on to Compose, a higher-level Docker tool for declaratively describing an entire app, and how it all fits together. As you learn more, we’ll gradually layer up services like a database and Redis. We’ll cover how to set up and run your tests so that you’re fully proficient at using Docker for Rails development. ...