services:
  postgres:
    image: postgres:16-alpine
    container_name: postgres
    restart: unless-stopped
    environment:
      POSTGRES_USER: labuser
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
      POSTGRES_DB: labdb
      POSTGRES_INITDB_ARGS: "--encoding=UTF8 --lc-collate=en_US.UTF-8 --lc-ctype=en_US.UTF-8"
    networks:
      - "net"
    ports:
      - "5432:5432"
    volumes:
      - postgres-data:/var/lib/postgresql/data
    deploy:
      resources:
        limits:
          cpus: '1.0'
          memory: 1G
        reservations:
          cpus: '0.5'
          memory: 512M
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U labuser -d labdb"]
      interval: 10s
      timeout: 5s
      retries: 5

# Объявляем volumes отдельно (bind-mount)
volumes:
  postgres-data:
    driver: local
    driver_opts:
      type: none
      device: /mnt/postgres/postgres-data
      o: bind

networks:
  net:
    external: true