DockerComposeLabs/Labs/006-Watch/docker-compose.yml at master · nirgeier/DockerComposeLabs · GitHub

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# Docker Compose Watch Example
# This configuration demonstrates Docker Compose Watch functionality
# with different watch actions for various file types and services

version: "3.8"

services:
  # Frontend service - React/Vue.js application example
  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile
    ports:
      - "3000:3000"
    volumes:
      - ./frontend:/app
      - /app/node_modules # Prevent overwriting node_modules
    environment:
      - NODE_ENV=development
    develop:
      watch:
        # Sync source code changes for hot reload
        - action: sync
          path: ./frontend/src
          target: /app/src
        # Rebuild when package.json changes (new dependencies)
        - action: rebuild
          path: ./frontend/package.json
        # Sync public assets
        - action: sync
          path: ./frontend/public
          target: /app/public

  # Backend service - Node.js/Python API example
  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile
    ports:
      - "8000:8000"
    volumes:
      - ./backend:/app
      - /app/node_modules # For Node.js projects
    environment:
      - NODE_ENV=development
      - DATABASE_URL=postgresql://user:password@db:5432/devdb
    depends_on:
      - db
    develop:
      watch:
        # Rebuild when dependencies change
        - action: rebuild
          path: ./backend/package.json # For Node.js
        - action: rebuild
          path: ./backend/requirements.txt # For Python
        # Sync application code for hot reload
        - action: sync
          path: ./backend/src
          target: /app/src
        - action: sync
          path: ./backend/app
          target: /app/app
        # Restart when configuration changes
        - action: restart
          path: ./backend/config

  # Database service
  db:
    image: postgres:15
    environment:
      - POSTGRES_DB=devdb
      - POSTGRES_USER=user
      - POSTGRES_PASSWORD=password
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data
      - ./db/init.sql:/docker-entrypoint-initdb.d/init.sql
    develop:
      watch:
        # Restart when database initialization scripts change
        - action: restart
          path: ./db/init.sql

  # Web server - Nginx configuration example
  nginx:
    image: nginx:alpine
    ports:
      - "80:80"
    volumes:
      - ./nginx/nginx.conf:/etc/nginx/nginx.conf
      - ./nginx/conf.d:/etc/nginx/conf.d
    depends_on:
      - frontend
      - backend
    develop:
      watch:
        # Restart when nginx configuration changes
        - action: restart
          path: ./nginx/nginx.conf
        - action: restart
          path: ./nginx/conf.d

  # Redis cache service
  redis:
    image: redis:7-alpine
    ports:
      - "6379:6379"
    volumes:
      - redis_data:/data
      - ./redis/redis.conf:/etc/redis/redis.conf
    command: redis-server /etc/redis/redis.conf
    develop:
      watch:
        # Restart when Redis configuration changes
        - action: restart
          path: ./redis/redis.conf

  # Worker service - Background job processor
  worker:
    build:
      context: ./backend
      dockerfile: Dockerfile.worker
    volumes:
      - ./backend:/app
    environment:
      - NODE_ENV=development
      - REDIS_URL=redis://redis:6379
    depends_on:
      - redis
      - db
    develop:
      watch:
        # Sync worker code changes
        - action: sync
          path: ./backend/workers
          target: /app/workers
        # Rebuild when dependencies change
        - action: rebuild
          path: ./backend/package.json

# Named volumes for data persistence
volumes:
  postgres_data:
    driver: local
  redis_data:
    driver: local

# Custom network for service communication
networks:
  default:
    driver: bridge