AWS Elastic Beanstalk - 如何使用npm和webpack构建bundle JS

Question

我在elasticbeanstalk部署了一个节点js app。 已安装且符号链接的节点，npm和webpack。 但是当运行npm run build-prod ，它本身调用脚本webpack --config /var/app/current/webpack.prod.config.js 。 退出状态-2出现以下错误。 如果我直接运行webpack命令也会发生同样的情况。 我正在寻找解决方案。

[2016-07-26T06:57:36.301Z] INFO  [9731]  - [Application update app-5c81-160726_122417@24/AppDeployStage0/EbExtensionPostBuild/Infra-EmbeddedPostBuild/postbuild_0_site_web/Command 06_npm_run_build_prod] : Activity execution failed, because:
  > site-web@1.0.0 build-prod /tmp/deployment/application
  > webpack --config /var/app/current/webpack.prod.config.js


  npm ERR! Linux 4.4.14-24.50.amzn1.x86_64
  npm ERR! argv "/opt/elasticbeanstalk/node-install/node-v4.4.6-linux-x64/bin/node" "/bin/npm" "run" "build-prod"
  npm ERR! node v4.4.6
  npm ERR! npm  v2.15.5
  npm ERR! file sh
  npm ERR! path sh
  npm ERR! code ELIFECYCLE
  npm ERR! errno ENOENT
  npm ERR! syscall spawn sh
  npm ERR! site-web@1.0.0 build-prod: `webpack --config /var/app/current/webpack.prod.config.js`
  npm ERR! spawn sh ENOENT
  npm ERR!
  npm ERR! Failed at the site-web@1.0.0 build-prod script 'webpack --config /var/app/current/webpack.prod.config.js'.
  npm ERR! This is most likely a problem with the site-web package,
  npm ERR! not with npm itself.
  npm ERR! Tell the author that this fails on your system:
  npm ERR!     webpack --config /var/app/current/webpack.prod.config.js
  npm ERR! You can get information on how to open an issue for this project with:
  npm ERR!     npm bugs site-web
  npm ERR! Or if that isn't available, you can get their info via:
  npm ERR!
  npm ERR!     npm owner ls site-web
  npm ERR! There is likely additional logging output above.
  npm ERR! Linux 4.4.14-24.50.amzn1.x86_64
  npm ERR! argv "/opt/elasticbeanstalk/node-install/node-v4.4.6-linux-x64/bin/node" "/bin/npm" "run" "build-prod"
  npm ERR! node v4.4.6
  npm ERR! npm  v2.15.5
  npm ERR! code ELIFECYCLE

---

容器配置文件：

container_commands:
  01_node_symlink:
    command: "ln -sf `ls -td /opt/elasticbeanstalk/node-install/node-* | head -1`/bin/node /bin/node"

  02_npm_symlink:
    command: "ln -sf `ls -td /opt/elasticbeanstalk/node-install/node-* | head -1`/bin/npm /bin/npm"

  03_npm_install_global_packages:
    command: "npm install webpack webpack-cli -g"

  04_webpack_symlink:
    command: "ln -sf `ls -td /opt/elasticbeanstalk/node-install/node-* | head -1`/bin/webpack /bin/webpack"

  #05_webpack_run_build_prod:
    #command: "webpack --config /var/app/current/webpack.prod.config.js --progress --colors"

  06_npm_run_build_prod:
    command: "npm run build-prod"

---

package.json中的脚本

"scripts": {
    "build": "webpack --config webpack.local.config.js --progress --colors",
    "build-local": "webpack --config webpack.prod.config.js --progress --colors",
    "build-prod": "webpack --config /var/app/current/webpack.prod.config.js",
    "server": "node app.js",
    "dev-server": "node dev-app.js"
  }

当我取消注释05直接运行webpack命令时，它以错误结束Error: "/var/app/current/site-web/static/assets/app/index.js" is not in the SourceMap.

构建脚本在本地成功，但在生产的所有方式上都被阻止。 无法弄清楚如何运行webpack命令在AWS beanstalk环境中构建JS。 是不是构建JS文件的理想方式？

node：4.4.6 npm：2.15.5 webpack：latest

Answer 1

我还是刚接触弹性beanstalk并且自己也有类似的问题，但是我注意到你的符号链接节点，npm等的任务是container_commands的形式。

根据官方文档 ，“它们在应用程序和Web服务器已经设置并且应用程序版本文件已被解压缩但在部署应用程序版本之前运行。”

也许尝试使用commands:而不是container_commands: . 查看我分享的链接。

也许这些命令直到应用程序和Web服务器已经设置之后才运行，这可能是为什么它可能不适合您？

再说一次，我还是刚开始使用弹性豆茎，但也许这可能有所帮助。

Answer 2

我遇到了全局npm安装问题（在我看来是react-scripts）。 我所做的解决方法是在宣布安装相关程序包package.json ，然后符号链接到它（位于/tmp/deployment/application/node_modules/.bin在EC2上） .ebextensions配置文件：

   03_react_scripts_symlink:
        command: "ln -sf /tmp/deployment/application/node_modules/.bin/react-scripts /bin/react-scripts"

   04_npm_run_build_prod:
        command: "sudo npm run build"

Answer 3

我认为这种方法是错误的。 Webpack和Webpack-cli是package.json devDependencies。
您应该将env变量设置为NPM_USE_PRODUCTION=false ，以便EB也安装devDependencies 。

在这里查看更多： https ： //docs.aws.amazon.com/elasticbeanstalk/latest/dg/nodejs-platform-packagejson.html

Answer 4

最后，我设法在staging目录下运行构建脚本。 它不是一个永久的解决方案，但它的工作原理。

05_webpack_run_build_prod:
    command: "cd /tmp/deployment/application && sudo webpack --config webpack.prod.config.js --progress --colors"