Docker Compose for Rails + MySQL

Created by admin@example.com on March 28, 2025

version: '3.8'
services:
    image: mysql:8.0
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: password
      MYSQL_DATABASE: myapp_development
      MYSQL_USER: myapp
      MYSQL_PASSWORD: password
    ports:
    volumes:
      - db_data:/var/lib/mysql
    build: .
    command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
    volumes:
      - .:/app
    ports:
    depends_on:
      - db
    environment:
      DATABASE_URL: mysql2://myapp:password@db:3306/myapp_development
volumes:
  db_data:

1	version: '3.8'
2
3	services:
4	db:
5	image: mysql:8.0
6	restart: always
7	environment:
8	MYSQL_ROOT_PASSWORD: password
9	MYSQL_DATABASE: myapp_development
10	MYSQL_USER: myapp
11	MYSQL_PASSWORD: password
12	ports:
13	- "3306:3306"
14	volumes:
15	- db_data:/var/lib/mysql
16
17	web:
18	build: .
19	command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
20	volumes:
21	- .:/app
22	ports:
23	- "3000:3000"
24	depends_on:
25	- db
26	environment:
27	DATABASE_URL: mysql2://myapp:password@db:3306/myapp_development
28
29	volumes:
30	db_data: