| 1234567891011121314151617181920212223242526272829 | version: "3"services:  vote:    build: ./vote    command: python app.py    volumes:     - ./vote:/app    ports:      - "5000:80"  redis:    image: redis:alpine    ports: ["6379"]  worker:    build: ./worker  db:    image: postgres:9.4  result:    build: ./result    command: nodemon server.js    volumes:      - ./result:/app    ports:      - "5001:80"      - "5858:5858"
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