Munich-news/docker-compose.yml

# Munich News Daily - Docker Compose Configuration
#
# GPU Support:
#   To enable GPU acceleration for Ollama (5-10x faster):
#   1. Check GPU availability: ./check-gpu.sh
#   2. Start with GPU: ./start-with-gpu.sh
#   Or manually: docker-compose -f docker-compose.yml -f docker-compose.gpu.yml up -d
#
# Security:
#   - Only Backend API (port 5001) is exposed to host
#   - MongoDB is internal-only (not exposed to host)
#   - Ollama is internal-only (not exposed to host)
#   - Crawler and Sender are internal-only
#   All services communicate via internal Docker network
#
# See docs/OLLAMA_SETUP.md for detailed setup instructions

services:
  # Ollama AI Service (Internal only - not exposed to host)
  ollama:
    image: ollama/ollama:latest
    container_name: munich-news-ollama
    restart: unless-stopped
    # No ports exposed - only accessible within Docker network
    volumes:
      - ollama_data:/root/.ollama
    networks:
      - munich-news-network
    # GPU support (uncomment if you have NVIDIA GPU)
    # deploy:
    #   resources:
    #     reservations:
    #       devices:
    #         - driver: nvidia
    #           count: all
    #           capabilities: [gpu]
    healthcheck:
      test: ["CMD-SHELL", "ollama list || exit 1"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 30s

  # Ollama Model Loader - Pulls phi3:latest on startup
  ollama-setup:
    image: curlimages/curl:latest
    container_name: munich-news-ollama-setup
    depends_on:
      ollama:
        condition: service_healthy
    networks:
      - munich-news-network
    env_file:
      - backend/.env
    entrypoint: /bin/sh
    command: >
      -c "
      echo 'Waiting for Ollama service to be ready...' &&
      sleep 5 &&
      echo 'Pulling model: ${OLLAMA_MODEL:-phi3:latest}' &&
      curl -X POST http://ollama:11434/api/pull -d '{\"name\":\"${OLLAMA_MODEL:-phi3:latest}\"}' &&
      echo '' &&
      echo 'Model ${OLLAMA_MODEL:-phi3:latest} pull initiated!'
      "
    restart: "no"

  # MongoDB Database (Internal only - not exposed to host)
  mongodb:
    image: mongo:latest
    container_name: munich-news-mongodb
    restart: unless-stopped
    # No ports exposed - only accessible within Docker network
    environment:
      # For production, set MONGO_PASSWORD environment variable
      MONGO_INITDB_ROOT_USERNAME: ${MONGO_USERNAME:-admin}
      MONGO_INITDB_ROOT_PASSWORD: ${MONGO_PASSWORD:-changeme}
      MONGO_INITDB_DATABASE: munich_news
    volumes:
      - mongodb_data:/data/db
      - mongodb_config:/data/configdb
    networks:
      - munich-news-network
    command: mongod --bind_ip_all ${MONGO_AUTH:---auth}
    healthcheck:
      test: echo 'db.runCommand("ping").ok' | mongosh localhost:27017/test --quiet
      interval: 30s
      timeout: 10s
      retries: 3

  # News Crawler - Runs at 6 AM Berlin time
  crawler:
    build:
      context: .
      dockerfile: news_crawler/Dockerfile
    container_name: munich-news-crawler
    restart: unless-stopped
    depends_on:
      - mongodb
      - ollama
    environment:
      - MONGODB_URI=mongodb://${MONGO_USERNAME:-admin}:${MONGO_PASSWORD:-changeme}@mongodb:27017/
      - TZ=Europe/Berlin
    volumes:
      - ./backend/.env:/app/.env:ro
    networks:
      - munich-news-network
    healthcheck:
      test: ["CMD", "python", "-c", "import sys; sys.exit(0)"]
      interval: 1m
      timeout: 10s
      retries: 3

  # Backend API - Tracking and analytics
  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile
    container_name: munich-news-backend
    restart: unless-stopped
    depends_on:
      - mongodb
    ports:
      - "5001:5001"
    environment:
      - MONGODB_URI=mongodb://${MONGO_USERNAME:-admin}:${MONGO_PASSWORD:-changeme}@mongodb:27017/
      - FLASK_PORT=5001
      - TZ=Europe/Berlin
    volumes:
      - ./backend/.env:/app/.env:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
    networks:
      - munich-news-network
    healthcheck:
      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:5001/health')"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 40s

  # Newsletter Sender - Runs at 7 AM Berlin time
  sender:
    build:
      context: .
      dockerfile: news_sender/Dockerfile
    container_name: munich-news-sender
    restart: unless-stopped
    depends_on:
      - mongodb
      - backend
      - crawler
    environment:
      - MONGODB_URI=mongodb://${MONGO_USERNAME:-admin}:${MONGO_PASSWORD:-changeme}@mongodb:27017/
      - TZ=Europe/Berlin
    volumes:
      - ./backend/.env:/app/.env:ro
    networks:
      - munich-news-network
    healthcheck:
      test: ["CMD", "python", "-c", "import sys; sys.exit(0)"]
      interval: 1m
      timeout: 10s
      retries: 3

volumes:
  mongodb_data:
    driver: local
  mongodb_config:
    driver: local
  ollama_data:
    driver: local

networks:
  munich-news-network:
    driver: bridge