“本地主机没有发送数据。ERR_EMPTY_RESPONSE”和“curl：（52）来自服务器的空回复”

Question

当我尝试访问 Docker 容器外部时，我收到空数据并出现下面提到的错误。我对 Docker 容器内的curl 和wget 命令没有任何问题。该容器基于 Angular JS 镜像。

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“本地主机没有发送数据。ERR_EMPTY_RESPONSE”和“curl：（52）来自服务器的空回复”

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请帮忙。

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对不起！忘记发布实际代码。这是我的 Dockerfile 和 package.json 文件。

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包.json

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    {\n  "name": "angularjs-project\xe2\x80\x9d,\n  "version": "0.0.0",\n  "license": "MIT",\n  "scripts": {\n    "ng": "ng",\n    "start": "ng serve -H 0.0.0.0",\n    "build": "ng build",\n    "test": "ng test",\n    "lint": "ng lint",\n    "e2e": "ng e2e"\n  },\n  "private": true,\n  "dependencies": {\n    "@angular/animations": "^4.3.6",\n    "@angular/common": "^4.2.4",\n    "@angular/compiler": "^4.2.4",\n    "@angular/core": "^4.2.4",\n    "@angular/forms": "^4.2.4",\n    "@angular/http": "^4.2.4",\n    "@angular/platform-browser": "^4.2.4",\n    "@angular/platform-browser-dynamic": "^4.2.4",\n    "@angular/router": "^4.2.4",\n    "core-js": "^2.4.1",\n    "font-awesome": "^4.7.0",\n    "primeng": "^4.1.3",\n    "rxjs": "^5.4.2",\n    "zone.js": "^0.8.14"\n  },\n  "devDependencies": {\n    "@angular/cli": "1.3.2",\n    "@angular/compiler-cli": "^4.2.4",\n    "@angular/language-service": "^4.2.4",\n    "@types/jasmine": "~2.5.53",\n    "@types/jasminewd2": "~2.0.2",\n    "@types/node": "~6.0.60",\n    "codelyzer": "~3.1.1",\n    "jasmine-core": "~2.6.2",\n    "jasmine-spec-reporter": "~4.1.0",\n    "karma": "~1.7.0",\n    "karma-chrome-launcher": "~2.1.1",\n    "karma-cli": "~1.0.1",\n    "karma-coverage-istanbul-reporter": "^1.2.1",\n    "karma-jasmine": "~1.1.0",\n    "karma-jasmine-html-reporter": "^0.2.2",\n    "protractor": "~5.1.2",\n    "ts-node": "~3.2.0",\n    "tslint": "~5.3.2",\n    "typescript": "~2.3.3"\n  }\n}\n

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Dockerfile

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    FROM node:6\nRUN mkdir -p /angularjs-sample\nADD . /angularjs-sample\nWORKDIR /angularjs-sample\nRUN cd /angularjs-sample\n\nRUN npm cache clean\nRUN npm install -g @angular/cli\nRUN npm install\nRUN npm update\nEXPOSE 4200\nCMD ["ng", "serve"]\n

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Answer 1

CMD ["ng", "serve", "--host=0.0.0.0"]\n

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当 HTTP 客户端（例如 Web 浏览器）（或在本例中为curl）发送 HTTP 请求时，服务器需要 client\xe2\x80\x99s IP 地址，以便知道将响应发送到哪里。当您运行本地开发服务器时，它会检查该 IP 地址，甚至不会响应来自 127.0.0.1 (localhost) 的请求。这可以防止您网络上的其他人（例如，坐在同一家星巴克）使用开发服务器来攻击您的盒子。

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当您在来宾容器或虚拟机中运行开发服务器并在主机上运行客户端 (curl) 时，服务器会看到不同的 IP 地址，并拒绝响应。大多数服务器允许您指定哪些 IP 地址是有效客户端的掩码。0.0.0.0 表示 fugetaboutit，接受所有客户端 IP。它让保镖休息一晚。

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Answer 2

我建议的理想方法是在创建时将主机 IP 地址绑定到容器。您不应该从 docker 文件启动应用程序的运行。创建容器，与主机绑定并编写脚本来启动应用程序

你可以这样做，

docker run -d -p 4545:8553--name my-container my-image my-command

其中“ 8553 ”可以是您的应用程序默认内部端口，与“ 4545 ”外部端口合并