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 environment: POSTGRES_USER: "postgres" POSTGRES_PASSWORD: "postgres" result: build: ./result command: nodemon server.js volumes: - ./result:/app ports: - "5001:80" - "5858:5858"