Dockerizing的Node.js应用

Question

虽然试图dockerize节点的应用程序，当我访问本地主机：8000我得到这个错误：当我使用run命令图像

The connection was reset - the connection to the server was reset while the page was loading.

在终端，我得到所需的输出在控制台中。它说：

Server running at http://localhost:8000/

Dockerfile：

FROM node 

RUN mkdir -p /app/ 
WORKDIR /app 

COPY package.json /app 

RUN cd /app 

RUN npm install 

COPY . /app 

CMD ["node", "index.js"] 
EXPOSE 8000 

index.js：

#!/usr/bin/env nodejs 

var http = require('http'); 
http.createServer(function(req, res) { 
    res.writeHead(200, { 'Content-Type': 'text/plain' }); 
    res.end('Hello World\n'); 
}).listen(8000, 'localhost'); 
console.log('Server running at http://localhost:8000/'); 

的package.json：

{ 
    "name": "server1", 
    "version": "1.0.0", 
    "description": "Dockerizing node-app", 
    "main": "index.js", 
    "scripts": { 
    "test": "echo \"Error: no test specified\" && exit 1" 
    }, 
    "author": "Himanshu", 
    "license": "ISC" 
} 

下面是我用

运行命令

sudo docker run -p 8000:8000 -it --name node-container2 my-node-image 

所有这些文件保存在同一个目录中。

Answer 1

只要改变你的index.js对0.0.0.0在里面工作的容器：

#!/usr/bin/env nodejs 

var http = require('http'); 
http.createServer(function(req, res) { 
    res.writeHead(200, { 'Content-Type': 'text/plain' }); 
    res.end('Hello World\n'); 
}).listen(8000, '0.0.0.0'); 
console.log('Server running at http://0.0.0.0:8000/'); 

而且你将可以通过本地主机访问主机上您的应用程序。