docker-compose.yml

services:
  # PostgreSQL Database
  postgres:
    image: postgres:16-alpine
    container_name: interview-db
    environment:
      POSTGRES_DB: ${DB_NAME:-interview_simulator}
      POSTGRES_USER: ${DB_USERNAME:-postgres}
      POSTGRES_PASSWORD: ${DB_PASSWORD:-secret}
    volumes:
      - postgres_data:/var/lib/postgresql/data
    ports:
      - "5432:5432"
    networks:
      - interview-network
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${DB_USERNAME:-postgres} -d ${DB_NAME:-interview_simulator}"]
      interval: 10s
      timeout: 5s
      retries: 5

  # Spring Boot Application
  app:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: interview-app
    ports:
      - "8080:8080"
    environment:
      # Application mode: PROD requires users to provide their own API key
      # REVIEWER uses multi-key rotation for competition judges
      APP_MODE: ${APP_MODE:-PROD}
      # Database connection
      DB_HOST: postgres
      DB_PORT: 5432
      DB_NAME: ${DB_NAME:-interview_simulator}
      DB_USERNAME: ${DB_USERNAME:-postgres}
      DB_PASSWORD: ${DB_PASSWORD:-secret}
      # Optional: Only needed in DEV mode
      GEMINI_API_KEY: ${GEMINI_API_KEY:-}
      # REVIEWER mode: comma-separated API keys
      GEMINI_REVIEWER_KEYS: ${GEMINI_REVIEWER_KEYS:-}
      # Grading model fallback chain (PROD + REVIEWER)
      GEMINI_GRADING_MODELS: ${GEMINI_GRADING_MODELS:-gemini-3-flash-preview,gemini-2.5-flash,gemini-2.5-flash-lite,gemma-3-12b-it}
      # JVM options
      JAVA_OPTS: ${JAVA_OPTS:-"-Xmx512m -Xms256m"}
    depends_on:
      postgres:
        condition: service_healthy
    networks:
      - interview-network
    restart: unless-stopped

networks:
  interview-network:
    driver: bridge

volumes:
  postgres_data: