Docker Rails development

This is just a demo app for using docker as a development environment for Rails projects. The environment includes Postgres, Redis, Sidekiq, Webpacker, Mailcatcher and Rails without needing any of those installed on the local machine.

How To

• Make sure (Docker for Mac)[https://docs.docker.com/docker-for-mac/install/] is installed.
• If you have Postgres/Redis installed locally make sure they aren't running.
• Run docker-compose build to build the images for the first time.
• Run docker-compose run web yarn install to install JS assets.
• Run docker-compose run web rake db:create to create the database.
• Run docker-compose run web rake db:migrate to migrate the database.
• Run docker-compose up to start the app.
• Run docker-compose down from another terminal tab (or Ctrl-C) to quit.
• For subsequent runs just use docker-compose up.

To run ruby commands (if you don't have/want ruby installed locally) you can run them through a container. For example, to create a new model you can use docker-compose run web rails g model User to create a container that will have access to the ruby environment. You can also use this to get into the rails console: docker-compose run web rails console.