Tạo project ruby on rails mysql với docker

Tạo project ruby on rails mysql với docker

1. Điều kiện cần

Trước tiên máy các bạn cần phải cài đặt docker và docker-compose. Các bạn kiểm tra bằng lệnh sau
 

docker --version
docker-compose --version

2. Chuẩn bị các file cần thiết (Tạo folder rails_docker_app để chứa các file sau)

- Tạo Dockerfile như sau:

FROM ruby:3.1.2
RUN curl -sL https://deb.nodesource.com/setup_10.x | bash -
RUN apt-get update -qq && apt-get install -y build-essential libpq-dev nodejs
RUN mkdir /rails_docker_app
WORKDIR /rails_docker_app
ADD Gemfile /rails_docker_app/Gemfile
ADD Gemfile.lock /rails_docker_app/Gemfile.lock
RUN bundle install
ADD . /rails_docker_appdock

- Tạo Gemfile với nội dụng sau:

source 'https://rubygems.org'

git_source(:github) do |repo_name|
  repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
  "https://github.com/#{repo_name}.git"
end
ruby '3.1.2'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails'
# Use mysql as the database for Active Record
gem 'mysql2'
# Use Puma as the app server
gem 'puma'
# Use SCSS for stylesheets
gem 'sass-rails'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
gem 'turbolinks', '~> 5'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 3.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug', platform: :mri
end

group :development do
  # Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
  gem 'web-console', '>= 3.3.0'
  gem 'listen', '~> 3.0.5'
  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
  gem 'spring-watcher-listen', '~> 2.0.0'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

gem 'bootstrap', '~> 5.2.2'

gem 'sprockets-rails', '~> 3.4.2'

- Tạo Gemfile.lock

- Tạo docker-compose.yml với nội dung sau
 

version: "3"

services: 
  app:
    build: .
    command: bundle exec rails s -p 3000 -b "0.0.0.0"    
    volumes:
      - .:/rails_docker_app
      - bundle:/usr/local/bundle
    ports:
      - "3000:3000"
    depends_on:
      - db
    stdin_open: true
    tty: true
    environment:
      RAILS_ENV: development
      DB_USERNAME: root
      DB_PASSWORD: ''
      DB_HOST: db
  db:
    image: mysql:5.5
    ports:
      - "4306:3306"
    volumes:
      - db_data:/var/lib/mysql
      - .:/rails_docker_app
    environment:
      MYSQL_ALLOW_EMPTY_PASSWORD: 1
      MYSQL_USER: root
      MYSQL_PASSWORD: ''
volumes:
  db_data:
    driver: local
  bundle:
    driver: local

3. Build và chạy project ruby on rails với database mysql

 - Tạo mới project ruby on rails với mysql thực hiện chạy lệch sau:
 

docker-compose run app rails new . --force --database=mysql --skip-bundle

- Cập nhật lại config trong file database.yml sang ENV. Cụ thể:

default: &default
  adapter: mysql2
  encoding: utf8
  pool: 5
  username: root
  password:
  host: localhost

Thành

database: <%= ENV['DB_NAME'] %> 
  username: <%= ENV['DB_USER'] %> 
  password: <%= ENV['DB_PASSWORD'] %> 
  host: <%= ENV['DB_HOST'] %> 

- Chạy docker-compose build

docker-compose build

- Tiếp tục chạy docker-compose up -d  

docker-compose up -d  

Lưu ý: Nếu lỗi thì các bạn cần chạy lệnh sau để create database nhé

docker-compose run --rm app rails db:create

Xem video cùng dandev thao tác nhé