Docker for Rails Developers

Quick Recap

Another action-packed chapter. You’ve now learned the major tools in our belt for deploying apps with Docker.

Let’s review what we covered in this chapter:

1. We introduced Docker Machine and used it to create a virtualized Docker-ready instance:

   $ docker-machine create --driver virtualbox local-vm-1

2. We logged onto the new instance using SSH:

   $ docker-machine ssh local-vm-1

   and issued commands against it from our local shell session:

   $ docker-machine ssh <instance name> "<command>"

3. We saw how to configure our Docker Client to target the Docker Engine on our virtual instance:

   $ eval $(docker-machine env local-vm-1)

   and to reset it again with:

   $ eval $(docker-machine ...