services: nginx: image: nginx volumes: - ./nginx.conf:/etc/nginx/conf.d/default.conf ports: - 8000:8000 server1: image: hello build: context: hello-world command: 8000 "Alice" ports: - 8001:8000 server2: image: hello build: context: hello-world command: 8000 "Bob" ports: - 8002:8000