Prerequisites

• docker-compose
• Ruby 2.6.3
• Rails 6.0.0

Development Mode

Environment variables

$ export COMPOSE_FILE=docker-compose.dev.yml

Spinning up containers

$ docker-compose build --no-cache
$ docker-compose up

Rebuild and spin up containers

$ docker-compose up --build

Get the application up and running.

Rails Controllers

• Controller Generation

$ docker-compose exec rails_app rails generate controller controller_name

• API Controller Generation

$ docker-compose exec rails_app rails generate controller api::v1::Users index show new create

Rails Models

$ docker-compose exec rails_app rails generate model model_name name:string

Database Manipulations

• Database initialization

$ docker-compose exec rails_app bundle exec rails db:create db:migrate db:seed

• Database creation

$ docker-compose exec rails_app bundle exec rails db:create

• Database migration

$ docker-compose exec rails_app bundle exec rails db:migrate

• Database seed

$ docker-compose exec rails_app bundle exec rails db:seed

• Remove database

$ docker-compose exec rails_app bundle exec rails db:drop

• Generate Migration

$ docker-compose exec rails_app rails generate migration AddPasswordDigestToUsers password_digest:string

List Rails Routes

$ docker-compose exec rails_app rails routes

Rails Testing Frameworks

Rails Minitest

$ docker-compose exec rails_app rails test

RSpec, Behaviour Driven Development for Ruby

$ docker-compose exec rails_app rspec

Rails Credentials Management

$ docker exec -it RAILS_APP_CONTAINER_ID /bin/bash
# which vim
# export EDITOR="vim"
# rails credentials:edit