docker-compose.yml

# Development docker compose with hot-reload
services:
  db:
    image: postgres:15-alpine
    container_name: ${DATABASE_CONTAINER_NAME:-go_api_db}
    environment:
      POSTGRES_USER: ${DATABASE_USER:-postgres}
      POSTGRES_PASSWORD: ${DATABASE_PASSWORD:-postgres}
      POSTGRES_DB: ${DATABASE_NAME:-payment}
    ports:
      - "5412:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data
    networks:
      - go_api_network
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${DATABASE_USER:-postgres} -d ${DATABASE_NAME:-payment}"]
      interval: ${HEALTH_CHECK_INTERVAL:-15s}
      timeout: ${HEALTH_CHECK_TIMEOUT:-5s}
      retries: ${HEALTH_CHECK_RETRIES:-5}
      start_period: ${HEALTH_CHECK_START_PERIOD:-15s}

  redis:
    image: redis:7-alpine
    container_name: ${REDIS_CONTAINER_NAME:-go_api_redis}
    ports:
      - "6379:6379"
    volumes:
      - redis_data:/data
    networks:
      - go_api_network
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5

  prometheus:
    image: prom/prometheus:latest
    container_name: go_api_prometheus
    ports:
      - "9090:9090"
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml
      - prometheus_data:/prometheus
    networks:
      - go_api_network
    depends_on:
      app:
        condition: service_healthy

  grafana:
    image: grafana/grafana:latest
    container_name: go_api_grafana
    ports:
      - "3000:3000"
    volumes:
      - grafana_data:/var/lib/grafana
    networks:
      - go_api_network
    depends_on:
      - prometheus

  app:
    build:
      context: .
      dockerfile: Dockerfile
      target: development # Use development stage
    container_name: ${APP_CONTAINER_NAME:-go_api_app}
    environment:
      - DOCKER_ENV=true
      - SKIP_INTEGRATION_TESTS=true
    env_file:
      - .env
    ports:
      - "${SERVER_PORT:-8080}:${SERVER_PORT:-8080}"
    volumes:
      # Mount source code for hot-reload in development
      - ./:/app
      - /app/tmp # Exclude tmp directory
    depends_on:
      db:
        condition: service_healthy
      redis:
        condition: service_healthy
    networks:
      - go_api_network
    healthcheck:
      test:
        [
          "CMD-SHELL",
          "curl -f http://localhost:${SERVER_PORT:-8080}/health/live || exit 1",
        ]
      interval: ${HEALTH_CHECK_INTERVAL:-10s}
      timeout: ${HEALTH_CHECK_TIMEOUT:-5s}
      retries: ${HEALTH_CHECK_RETRIES:-5}
    restart: unless-stopped

networks:
  go_api_network:
    driver: bridge

volumes:
  postgres_data:
  redis_data:
  prometheus_data:
  grafana_data: