docker-compose.yml

version: '3.9'

services:
  # PostgreSQL Shards
  postgres-shard-a:
    image: postgres:15-alpine
    container_name: postgres-shard-a
    environment:
      POSTGRES_DB: shard_a
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    ports:
      - "5432:5432"
    volumes:
      - postgres-shard-a-data:/var/lib/postgresql/data
    networks:
      - instant-eats-network

  postgres-shard-b:
    image: postgres:15-alpine
    container_name: postgres-shard-b
    environment:
      POSTGRES_DB: shard_b
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    ports:
      - "5433:5432"
    volumes:
      - postgres-shard-b-data:/var/lib/postgresql/data
    networks:
      - instant-eats-network

  postgres-shard-c:
    image: postgres:15-alpine
    container_name: postgres-shard-c
    environment:
      POSTGRES_DB: shard_c
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    ports:
      - "5434:5432"
    volumes:
      - postgres-shard-c-data:/var/lib/postgresql/data
    networks:
      - instant-eats-network

  # MongoDB (Restaurant metadata)
  mongodb:
    image: mongo:6
    container_name: mongodb
    environment:
      MONGO_INITDB_ROOT_USERNAME: root
      MONGO_INITDB_ROOT_PASSWORD: mongodb
    ports:
      - "27017:27017"
    volumes:
      - mongodb-data:/data/db
    networks:
      - instant-eats-network

  # Redis (Caching & Pub/Sub)
  redis:
    image: redis:7-alpine
    container_name: redis
    ports:
      - "6379:6379"
    volumes:
      - redis-data:/data
    networks:
      - instant-eats-network
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 10s

  # RabbitMQ (Message Queue)
  rabbitmq:
    image: rabbitmq:3.12-management-alpine
    container_name: rabbitmq
    environment:
      RABBITMQ_DEFAULT_USER: guest
      RABBITMQ_DEFAULT_PASS: guest
    ports:
      - "5672:5672"
      - "15672:15672"
    volumes:
      - rabbitmq-data:/var/lib/rabbitmq
    networks:
      - instant-eats-network

  # API Gateway (3 instances with load balancing)
  api-gateway:
    build:
      context: ./services/api-gateway
      dockerfile: Dockerfile
    deploy:
      replicas: 3
      resources:
        limits:
          cpus: "0.5"
          memory: 200M
        reservations:
          cpus: "0.25"
          memory: 100M
    environment:
      NODE_ENV: development
      PORT: 3000
      POSTGRES_SHARD_A_URL: postgresql://postgres:postgres@postgres-shard-a:5432/shard_a
      POSTGRES_SHARD_B_URL: postgresql://postgres:postgres@postgres-shard-b:5432/shard_b
      POSTGRES_SHARD_C_URL: postgresql://postgres:postgres@postgres-shard-c:5432/shard_c
      REDIS_HOST: redis
      REDIS_PORT: 6379
      CACHE_TTL: 300
      CIRCUIT_BREAKER_TIMEOUT: 10000
      CIRCUIT_BREAKER_ERROR_THRESHOLD: 50
      CIRCUIT_BREAKER_RESET_TIMEOUT: 30000
      RABBITMQ_URL: amqp://guest:guest@rabbitmq:5672
    # Internal access only - Nginx handles public traffic
    depends_on:
      - postgres-shard-a
      - postgres-shard-b
      - postgres-shard-c
      - redis
      - rabbitmq
    networks:
      - instant-eats-network
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:3000/health"]
      interval: 10s
      timeout: 5s
      retries: 3
      start_period: 20s

  # Auth Service
  auth-service:
    build:
      context: ./services/auth-service
      dockerfile: Dockerfile
    container_name: auth-service
    environment:
      NODE_ENV: development
      PORT: 3001
      POSTGRES_SHARD_A_URL: postgresql://postgres:postgres@postgres-shard-a:5432/shard_a
      POSTGRES_SHARD_B_URL: postgresql://postgres:postgres@postgres-shard-b:5432/shard_b
      POSTGRES_SHARD_C_URL: postgresql://postgres:postgres@postgres-shard-c:5432/shard_c
      JWT_SECRET: your-secret-key-change-in-production
    ports:
      - "3001:3001"
    depends_on:
      - postgres-shard-a
      - postgres-shard-b
      - postgres-shard-c
    networks:
      - instant-eats-network

  # Order Service
  order-service:
    build:
      context: ./services/order-service
      dockerfile: Dockerfile
    container_name: order-service
    environment:
      NODE_ENV: development
      PORT: 3002
      POSTGRES_SHARD_A_URL: postgresql://postgres:postgres@postgres-shard-a:5432/shard_a
      POSTGRES_SHARD_B_URL: postgresql://postgres:postgres@postgres-shard-b:5432/shard_b
      POSTGRES_SHARD_C_URL: postgresql://postgres:postgres@postgres-shard-c:5432/shard_c
      RABBITMQ_URL: amqp://guest:guest@rabbitmq:5672
    ports:
      - "3002:3002"
    depends_on:
      - postgres-shard-a
      - postgres-shard-b
      - postgres-shard-c
      - rabbitmq
    networks:
      - instant-eats-network

  # Restaurant Service
  restaurant-service:
    build:
      context: ./services/restaurant-service
      dockerfile: Dockerfile
    container_name: restaurant-service
    environment:
      NODE_ENV: development
      PORT: 3003
      MONGODB_URL: mongodb://root:mongodb@mongodb:27017/restaurants?authSource=admin
    ports:
      - "3003:3003"
    depends_on:
      - mongodb
    networks:
      - instant-eats-network

  # Delivery Service
  delivery-service:
    build:
      context: ./services/delivery-service
      dockerfile: Dockerfile
    container_name: delivery-service
    environment:
      NODE_ENV: development
      PORT: 3004
      POSTGRES_SHARD_A_URL: postgresql://postgres:postgres@postgres-shard-a:5432/shard_a
      POSTGRES_SHARD_B_URL: postgresql://postgres:postgres@postgres-shard-b:5432/shard_b
      POSTGRES_SHARD_C_URL: postgresql://postgres:postgres@postgres-shard-c:5432/shard_c
      RABBITMQ_URL: amqp://guest:guest@rabbitmq:5672
    ports:
      - "3004:3004"
    depends_on:
      - postgres-shard-a
      - postgres-shard-b
      - postgres-shard-c
      - rabbitmq
    networks:
      - instant-eats-network

  # Tracking Service
  tracking-service:
    build:
      context: ./services/tracking-service
      dockerfile: Dockerfile
    container_name: tracking-service
    environment:
      NODE_ENV: development
      PORT: 3005
      REDIS_URL: redis://redis:6379
    ports:
      - "3005:3005"
    depends_on:
      - redis
    networks:
      - instant-eats-network

  # Admin Dashboard Service
  admin-dashboard:
    build:
      context: ./services/admin-dashboard
      dockerfile: Dockerfile
    container_name: admin-dashboard
    environment:
      NODE_ENV: development
      PORT: 3006
      REDIS_HOST: redis
      REDIS_PORT: 6379
    ports:
      - "3006:3006"
    depends_on:
      - redis
      - api-gateway
      - auth-service
      - order-service
      - restaurant-service
      - delivery-service
      - tracking-service
    networks:
      - instant-eats-network
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:3006/health"]
      interval: 10s
      timeout: 5s
      retries: 3
      start_period: 20s

  # Nginx Load Balancer
  nginx:
    image: nginx:alpine
    container_name: nginx
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro
    depends_on:
      - api-gateway
      - tracking-service
      - admin-dashboard
    networks:
      - instant-eats-network

networks:
  instant-eats-network:
    driver: bridge

volumes:
  postgres-shard-a-data:
  postgres-shard-b-data:
  postgres-shard-c-data:
  mongodb-data:
  redis-data:
  rabbitmq-data: