Docker for Rails Developers

Quick Recap

We’ve introduced a powerful new tool into our arsenal: Docker Compose. It really is a one-stop-shop command for developing our app with Docker.

Let’s review what we covered. In this chapter:

1. We introduced the docker-compose.yml and its format.

2. We created our own docker-compose.yml for our Rails app, including a locally mounted volume to allow live editing of local files.

3. We saw how to spin up our entire app and start the Rails server by using the command:

   $ docker-compose up

4. We learned various commands for managing our app with Compose:

   • List running containers

     $ docker-compose ps

   • Manage container life cycle

     $ docker-compose [start|stop|kill|restart|pause|unpause|rm] \
                      <service name>

   • View the ...