我有一个简单的 Dockerfile 来创建一个图像，作为我的 Node 应用程序的开发环境。问题是容器和我的机器之间的端口绑定(bind)没有按预期工作。
docker 文件:
FROM node:10.12.0
EXPOSE 8080
我使用以下命令从这个文件创建一个图像:
docker build -t node:10.12.0.bern ./images/node/
我使用以下命令启动一个容器:
docker run --rm --name=run-client \
-v $(CURDIR)/client:/app/client:rw \
-v $(CURDIR)/kawax-js:/app/kawax-js:rw \
-v $(CURDIR)/enigma:/app/enigma:rw \
-v $(CURDIR)/client-init/init-client.sh:/usr/local/bin/init-client.sh:rw \
-p 8080:8080 \
node:10.12.0.bern \
/bin/sh -c "sh /usr/local/bin/init-client.sh"
这是我的脚本 init-client.sh:
#!/usr/bin/env bash
cd /app/enigma/
npm link
cd /app/kawax-js/
npm link
cd /app/client/
npm link enigma
npm link kawax-js
npm run dev
最后从 package.json 文件运行我的开发脚本:
"scripts": {
"dev": "npm run dev:server & npm run sass:watch & npm run lint:watch",
"build": "npm run client:build && npm run sass:build",
"dev:server": "webpack-dev-server --mode development --hot",
"dev:watchOnly": "webpack --progress --watch -d",
"client:build": "webpack --mode production",
"client:minify": "NODE_ENV=production npm run client:build",
"client:analyze": "___WEBPACK_ANALYZE__=true webpack",
"sass:build": "node-sass --source-map true --include-path scss scss/app.scss dist/css/bernstein.css",
"sass:watch": "npm run sass:build & nodemon -e scss -x 'npm run sass:build'",
"lint": "eslint src/**",
"lint:changed": "git status | grep .js\\$ | awk '{print $NF}' | xargs eslint ",
"lint:watch": "nodemon -e js -x 'npm run lint -- --fix'",
"test": "jest --verbose",
"test:watch": "jest --verbose --debug --watchAll",
"deploy:staging": "./scripts/deploy.staging.sh",
"deploy:production": "./scripts/deploy.production.sh"
},
在我的机器或容器上运行此脚本将在端口 8080 启动 webpack 服务器。在我的机器上或从 docker 容器(来自容器的日志)启动服务器完全没有问题:
Rendering Complete, saving .css file...
Wrote Source Map to /app/client/dist/css/bernstein.css.map
Wrote CSS to /app/client/dist/css/bernstein.css
[nodemon] clean exit - waiting for changes before restart
clean-webpack-plugin: /app/client/dist/js has been removed.
ℹ ｢wds｣: Project is running at http://localhost:8080/
ℹ ｢wds｣: webpack output is served from /assets
ℹ ｢wds｣: Content not from webpack is served from /app/client/public
ℹ ｢wds｣: 404s will fallback to /index.html
如果我查看已安装的卷，我可以看到所有捆绑均已正确完成。运行 docker ps 我得到:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
db2c5d45c9a6 node:10.12.0.bern "sh /usr/local/bin/i…" 2 minutes ago Up 2 minutes 0.0.0.0:8080->8080/tcp run-client
问题是当我在浏览器上访问 0.0.0.0:8080 时，我什么也没看到。我不明白，为什么服务器已经启动并在容器中正常运行，但端口绑定(bind)不起作用？
最佳答案
注意 webpack-dev-server!它默认绑定(bind)到 localhost。
将其更改为:
"dev:server": "webpack-dev-server --mode development --hot --host 0.0.0.0"
您需要更新您的 webpack-dev-server(在您的 package.json 命令和 webpack.config.json 中)配置以将主机绑定(bind)到 0.0.0.0本地主机(默认!)。 localhost 只是您操作系统中的一个别名，它在容器中不可用。
https://webpack.js.org/configuration/dev-server/#devserver-host
关于javascript - 使用 webpack-dev-server 启动时，Docker 容器未按预期发布端口，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52895177/