docker-compose.yml

# week08/docker-compose.yml

version: "3.8"

services:
  product_db:
    image: postgres:15-alpine
    container_name: product_db_container
    restart: always
    environment:
      POSTGRES_DB: products
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    ports:
      - "5432:5432"
    volumes:
      - product_db_data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres -d products"]
      interval: 5s
      timeout: 5s
      retries: 5

  # PostgreSQL Database for Order Service
  order_db:
    image: postgres:15-alpine
    container_name: order_db_container
    restart: always
    environment:
      POSTGRES_DB: orders
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    ports:
      - "5433:5432"
    volumes:
      # Persistent volume for Order Service database data
      - order_db_data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres -d orders"]
      interval: 5s
      timeout: 5s
      retries: 5

  # Product Microservice (FastAPI)
  product_service:
    build:
      context: ./backend/product_service
      dockerfile: Dockerfile
    container_name: product_api_container
    image: week08_example01_product_service:latest
    restart: always
    ports:
      - "8000:8000"
    environment:
      POSTGRES_HOST: product_db # Connects to the 'product_db' service within Docker network
      AZURE_STORAGE_ACCOUNT_NAME: <your_storage_account_name> # Replace with your Azure Storage account name
      AZURE_STORAGE_ACCOUNT_KEY: <your_storage_account_key> # Replace with your Azure Storage account key
      AZURE_STORAGE_CONTAINER_NAME: <your_container_name> # Replace with your Azure Storage container name
      AZURE_SAS_TOKEN_EXPIRY_HOURS: 24
    depends_on:
      product_db:
        condition: service_healthy # Ensure product_db is healthy before starting
    volumes:
      - ./backend/product_service/app:/app
    command: uvicorn app.main:app --host 0.0.0.0 --port 8000

  # Order Microservice (FastAPI)
  order_service:
    build:
      context: ./backend/order_service
      dockerfile: Dockerfile
    image: week08_example01_order_service:latest
    container_name: order_api_container
    restart: always
    ports:
      - "8001:8000"
    environment:
      POSTGRES_HOST: order_db # Connects to the 'order_db' service within Docker network
      PRODUCT_SERVICE_URL: http://product_service:8000
    depends_on:
      order_db:
        condition: service_healthy
      product_service:
        condition: service_started
    volumes:
      - ./backend/order_service/app:/app
    command: uvicorn app.main:app --host 0.0.0.0 --port 8000

  # Frontend Service (Simple HTML/JS served by Nginx)
  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile
    image: week08_example01_frontend:latest
    container_name: product_order_frontend
    restart: always
    # Frontend connects to host ports, which are mapped to container ports
    ports:
      - "3000:80" # Map container port 80 (Nginx default) to host port 3000
    depends_on:
      product_service:
        condition: service_started
      order_service:
        condition: service_started
    volumes:
      - ./frontend:/usr/share/nginx/html # Mount frontend files directly

# Named volumes for data persistence for each database
volumes:
  product_db_data: # Data for the Product Service's PostgreSQL database
  order_db_data: # Data for the Order Service's PostgreSQL database