This is a Test Project with Ruby on Rails, Docker and Trailblazer

• Ruby version 2.6.5

• Rails version 6.0.2

• Local deployment

1. Install docker and run docker desktop locally.
2. docker build -t docker_on_rails .
3. docker-compose up
4. docker-compose run web rails db:create
5. docker-compose run web rails db:migrate
6. docker-compose run web rails db:migrate RAILS_ENV=test
7. Run tests: docker-compose run web rspec
8. Run the app in browser

• docker-compose run web rails db:seed
• http://localhost:3000

• How to use debugger with docker

0. In docker-compose.yml, in services -> web set "tty: true" and "stdin_open: true"
1. Put debugger in code
2. docker ps
3. Find CONTAINER_ID in docker desktop app (looks like "421f5718174d") and copy-paste it
4. docker attach CONTAINER ID

• Useful resources

• https://medium.com/@guillaumeocculy/setting-up-rails-6-with-postgresql-webpack-on-docker-a51c1044f0e4
• https://www.digitalocean.com/community/tutorials/containerizing-a-ruby-on-rails-application-for-development-with-docker-compose-ru
• https://www.digitalocean.com/community/tutorials/how-to-remove-docker-images-containers-and-volumes
• http://trailblazer.to/guides/index.html
• https://docs.docker.com/compose/rails/