Setting up RailsTutorialApp
$ git clone https://github.com/yasslab/sample_apps.git
$ mkdir rails_tutorial_modify
$ cp -p sample_apps/5_1_2/ch14/* rails_tutorial_modify/
$ rm -rf sample_apps
Setting up MySQL
Setting up database.yml
Setting up Dockerfile
Setting up docker-compose.yml
Install RuboCop
Useful Commands
$ docker system df
$ docker system prune -a --volumes