docker-compose.yml

services:
  postgres:
    image: postgres:15-alpine
    environment:
      POSTGRES_DB: problem5
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: password
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 10s
      timeout: 5s
      retries: 5

  redis:
    image: redis:7-alpine
    ports:
      - "6379:6379"
    volumes:
      - redis_data:/data
    command: redis-server --appendonly yes
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 3s
      retries: 5

  app:
    build: .
    # ports:  # Removed for development - use docker-compose exec instead
    environment:
      - NODE_ENV=development
      - DATABASE_URL=postgresql://postgres:password@postgres:5432/problem5
      - USE_REDIS=true
      - REDIS_HOST=redis
    depends_on:
      postgres:
        condition: service_healthy
      redis:
        condition: service_healthy
    volumes:
      - .:/app
      - /app/node_modules
    command: npm run dev
    deploy:
      replicas: 3
      resources:
        limits:
          cpus: '0.50'
          memory: 512M
        reservations:
          cpus: '0.25'
          memory: 256M

volumes:
  postgres_data:
  redis_data: