Docker Rails

Usage

1. Create new rails project

$ docker-compose run --rm web rails new . --force --database=mysql --skip-bundle --skip-git

2. Modify Gemfile to uncomment

gem 'mini_racer', platforms: :ruby

3. Copy environment variables file

$ cp env-example .env

4. Modify config/database.yml as following

default: &default
  adapter: mysql2
  encoding: utf8
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  username: root
  password: <%= ENV.fetch("MYSQL_ROOT_PASSWORD") %>
  host: db

5. Run docker-compose build

6. Create database $ docker-compose run --rm web rails db:create

7. Scaffold

$ docker-compose run --rm web rails g scaffold Post title:string body:text
$ docker-compose run --rm web rake db:migrate

8. RUN $ docker-compose up -d

9. Open http://localhost:3000/posts