Docker + Webpack(开发服务器)+ Yarnpkg不完整构建

Question

Docker + Webpack(开发服务器)+ Yarnpkg不完整构建

Ben*_*Ben 11 node.js docker webpack webpack-dev-server yarnpkg

问题

将webpack当前在本地运行的项目转换为在docker容器内运行.这项工作分为两个git部分:develop和containers.

本地(无容器)

develop是稳定的基地,通过$ yarn install && npm run dev以下方式在本地运行 package.json

"scripts": {
    "start": "node .",
    "env:dev": "cross-env NODE_ENV=development",
    "env:prod": "cross-env NODE_ENV=production",
    "predev": "npm run prebuild",
    "dev": "npm run env:dev -- webpack-dev-server",
//[...]
}

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分支develop确实包括yarn.lock,虽然FWIW,$ rm yarn.lock && yarn install --force && npm run dev确实正确地启动了服务器,即GET http://localhost:3000给我主页,正如我期望看到的那样.以上都是一样的$ git checkout containers

搬运工人

关闭本地开发服务器后,我运行$ git checkout containers,并且此分支不包含yarn.lock或package.lock.然后我运行$ docker-compose up --build web(在一个单独的终端中,在包含以下内容的兄弟目录中docker-compose.yaml)

   web:
      build:
       context: ../frontend/
       dockerfile: Dockerfile
      env_file: ../frontend/.env
      volumes:
        - ../frontend/src:/code/src
      ports:
        - "3001:3000"
      depends_on:
        - api
      networks:
        - backend

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在frontend/Dockerfile该服务web是像这样

# Dockerfile

FROM node:latest
RUN mkdir /code
ADD . /code/
WORKDIR /code/
RUN yarn cache clean && yarn install --non-interactive --force && npm rebuild node-sass

CMD npm run dev --verbose

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特定

#frontend/.dockerignore

node_modules
deploy
.circleci
stories
.storybook

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一切似乎进展顺利,启动的最后一行是web_1 | Server is running at http://localhost:3000/. 当我GET http://localhost:3001(注意端口映射docker-compose)时,返回的页面不包含应该注入的预期<style>...</style>标记<head>(据我所知)webpack,给出以下配置

// https://github.com/diegohaz/arc/wiki/Webpack
const path = require('path')
const devServer = require('@webpack-blocks/dev-server2')
const splitVendor = require('webpack-blocks-split-vendor')
const happypack = require('webpack-blocks-happypack')
const serverSourceMap = require('webpack-blocks-server-source-map')
const nodeExternals = require('webpack-node-externals')
const AssetsByTypePlugin = require('webpack-assets-by-type-plugin')
const ChildConfigPlugin = require('webpack-child-config-plugin')
const SpawnPlugin = require('webpack-spawn-plugin')
const ExtractTextPlugin = require('extract-text-webpack-plugin')

const {
  addPlugins, createConfig, entryPoint, env, setOutput,
  sourceMaps, defineConstants, webpack, group,
} = require('@webpack-blocks/webpack2')

const host = process.env.HOST || 'localhost'
const port = (+process.env.PORT + 1) || 3001
const sourceDir = process.env.SOURCE || 'src'
const publicPath = `/${process.env.PUBLIC_PATH || ''}/`.replace('//', '/')
const sourcePath = path.join(process.cwd(), sourceDir)
const outputPath = path.join(process.cwd(), 'dist/public')
const assetsPath = path.join(process.cwd(), 'dist/assets.json')
const clientEntryPath = path.join(sourcePath, 'client.js')
const serverEntryPath = path.join(sourcePath, 'server.js')
const devDomain = `http://${host}:${port}/`

//[...]  
const sass = () => () => ({
  module: {
    rules: [
      {
        test: /\.(scss|sass)$/,
        use: [
            { loader: 'style-loader' },
            { loader: 'css-loader' },
            { loader: 'sass-loader'},
            ],
      },
    ],
  },
})

const extractSass = new ExtractTextPlugin({
  filename: 'style.css',
})

const prodSass = () => () => ({
  module: {
    rules: [
      { test: /\.(scss|sass)$/,
        use: extractSass.extract({
          use: [
            { loader: 'css-loader', options: { minimize: true } },
            { loader: 'sass-loader' },
          ],
          fallback: 'style-loader',
        }),
      },
    ],
  },
})

const babel = () => () => ({
  module: {
    rules: [
      { test: /\.jsx?$/, exclude: /node_modules/, loader: 'babel-loader' },
    ],
  },
})

const assets = () => () => ({
  module: {
    rules: [
      { test: /\.(png|jpe?g|svg|woff2?|ttf|eot)$/, loader: 'url-loader?limit=8000' },
    ],
  },
})

const resolveModules = modules => () => ({
  resolve: {
    modules: [].concat(modules, ['node_modules']),
  },
})

const base = () => group([
  setOutput({
    filename: '[name].js',
    path: outputPath,
    publicPath,
  }),
  defineConstants({
    'process.env.NODE_ENV': process.env.NODE_ENV,
    'process.env.PUBLIC_PATH': publicPath.replace(/\/$/, ''),
  }),
  addPlugins([
    new webpack.ProgressPlugin(),
    extractSass,
  ]),
  apiInsert(),
  happypack([
    babel(),
  ]),
  assets(),
  resolveModules(sourceDir),

  env('development', [
    setOutput({
      publicPath: devDomain,
    }),
    sass(),
  ]),

  env('production', [
    prodSass(),
  ]),
])

const server = createConfig([
  base(),
  entryPoint({ server: serverEntryPath }),
  setOutput({
    filename: '../[name].js',
    libraryTarget: 'commonjs2',
  }),
  addPlugins([
    new webpack.BannerPlugin({
      banner: 'global.assets = require("./assets.json");',
      raw: true,
    }),
  ]),
  () => ({
    target: 'node',
    externals: [nodeExternals()],
    stats: 'errors-only',
  }),

  env('development', [
    serverSourceMap(),
    addPlugins([
      new SpawnPlugin('npm', ['start']),
    ]),
    () => ({
      watch: true,
    }),
  ]),
])

const client = createConfig([
  base(),
  entryPoint({ client: clientEntryPath }),
  addPlugins([
    new AssetsByTypePlugin({ path: assetsPath }),
    new ChildConfigPlugin(server),
  ]),

  env('development', [
    devServer({
      contentBase: 'public',
      stats: 'errors-only',
      historyApiFallback: { index: publicPath },
      headers: { 'Access-Control-Allow-Origin': '*' },
      host,
      port,
    }),
    sourceMaps(),
    addPlugins([
      new webpack.NamedModulesPlugin(),
    ]),
  ]),

  env('production', [
    splitVendor(),
    addPlugins([
      new webpack.optimize.UglifyJsPlugin({ compress: { warnings: false } }),
    ]),
  ]),
])

module.exports = client

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有趣的是,添加这一行 package.json

 "dev-docker": "npm run predev && npm run env:dev -- webpack  --progress --watch --watch-poll",

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并更改Dockerfile的最后一行以CMD npm run dev-docker产生所需的效果...

假设

我目前的怀疑是我遗漏了一些关于webpack开发服务器如何处理其加载器输出的问题,并且没有正确映射某个端口,但这是一个黑暗的镜头.

或者,webpack-dev-server版本是个问题.本地是4.4.2docker的节目5.6.0,但这似乎不是问题,因为最新的文档符合我自己的设置.我已经确认package.json加载器模块的规格是每个规格的最新稳定版.

辩解书

认识到这是一个由配置依赖和必然特殊方式的几种技术交叉引起的问题,我谦卑地请求你帮助解决这种依赖地狱.如果看起来我不明白一个特定的拼图如何运作,我很高兴听到它.任何想法,线索或建议,无论多么脆弱,都将受到极大的赞赏和利用,尽我所能.

Answer 1

小智 5

这里是远景,但我试图在docker容器中运行grails-vue应用程序,并且遇到了webpack-dev-server的端口映射没有正确暴露的问题.

我在github https://github.com/webpack/webpack-dev-server/issues/547上发现了这个问题,这导致我将--host 0.0.0.0添加到package.json中的dev任务中,如下所示:

"dev": "webpack-dev-server --inline --progress --config build/webpack.dev.conf.js --host 0.0.0.0"

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这解决了我的问题,也许这会帮助你找到答案.

Answer 2

Ben*_*Ben 2

已经有一段时间了，但回到这个问题，我找到了真正的答案。

使用webpack-dev-server两个端口。因此，在仅公开一个端口（3000）时，我没有获得构建的文件，这些文件client.js在localhost:3001. JS 控制台中的线索始终就在那里：上出现连接拒绝错误GET localhost:3001/client.js。

解决方案是暴露容器上的两个端口，即 docker run -it -p 3000:3000 -p 3001:3001 --rm --entrypoint "npm run env:dev -- webpack-dev-server" ${CONTAINER_REGISTRY}/${IMAGE_NAME}:${IMAGE_TAG}

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