为什么我的节点容器会忽略我在docker-compose.yml中设置的环境变量？ [英] Why does my node container ignore the environment variable I set in docker-compose.yml?

问题描述

在我的docker-compose.yml文件中，我设置了环境NODE_ENV

In my docker-compose.yml, I set environment NODE_ENV

node2:
    image: ...
    environment:
     - "NODE_ENV=production"

我的Dockerfile，

My Dockerfile,

FROM node:latest
... //all the ususal stuff
CMD ["npm", "start"]

我的npm，

  "scripts": {
    "start": "NODE_ENV=development node --inspect ./bin/www"
  },

但是当我运行docker-compose up时，我发现nodejs代码仍在开发中而不是在生产中运行。为什么？

But when I run docker-compose up, I found the nodejs code still runs in development, not in production. Why is that?

我的第二个问题是在没有docker的情况下运行我的nodejs（即使用 npm start ，我希望它在开发模式下运行，但在生产模式下运行docker？

My second question is what is the proper way to achieve what I want to do here, when running my nodejs without docker, i.e. using npm start, I want it to run in development mode, but running docker in production mode?

----更新- ---

---- update -----

现在我的第一个问题是我的 npm start 重写了docker-中的NODE_ENV = production-

For my first question now I understand it is my npm start overwrote NODE_ENV=production in docker-composer.yml not the other way around.

但是对于第二个问题，我仍在寻找一种简单的解决方案。

But for my second question, I am still looking for an easy solution.

感谢我到目前为止所获得的答案。

Thanks for the answers I got so far.

推荐答案

本文 在Node.js中使用环境变量给了我

所以我首先使用了如建议的if-env 和我的 npm脚本看起来像这样，

So I first used if-env as it suggested and my npm script looks liked this,

  "scripts": {
    "start": "if-env NODE_ENV=production && npm run start:prod || npm run start:dev",
    "start:dev": "DEBUG=dummy-app:* node --inspect ./bin/www",
    "start:prod": "node ./bin/www"
   }

但作为 https://github.com/ericclemmons/if-env/issues/6 说，更重要的是，我需要简单设置环境变量并在必要时将其覆盖的方法现在我使用 per-env 和我的 npm脚本看起来像这样，

But as https://github.com/ericclemmons/if-env/issues/6 said and more importantly I need to an easy way to set environment variables and overwrite them if necessay now I am using per-env and my npm script looks like this,

  "per-env": {
    "production": {
      "DBPASS":"superman", //this can be overwrote again 
    },
    "development":{
      "DBPASS":"batman",
      "DEBUG":"dummy-app:*",
    }
  },
  "scripts": {
    "start":"per-env",
    "start:development": "node --inspect ./bin/www",
    "start:production": "node ./bin/www"
  },

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