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Docker for Rails Developers

Quick Recap

Explore the essential commands and steps for deploying and managing Rails applications using Docker Machine and Swarm. Understand how to create virtual Docker environments, deploy stacks, update apps, and scale services to mimic production setups before moving to cloud deployment.

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Highlights

Another action-packed chapter. You have 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:

    $
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