如何将环境变量从docker-compose传递到NodeJS项目中？

像这样在node.js代码中使用process.env

process.env.BACKEND_SERVER

在docker-compose文件中提及您的变量。

version: "3"
services:
  client-side-app:
    image: my-client-side-docker-image
    environment:
      - BACKEND_SERVER="here we need to enter backend server"
    ports:
      - "8080:8080"
  server-side-app:
    image: my-server-side-docker-image
    ports:
      - "3000:3000"