Node.js Hello World app on Ubuntu using docker

app.js

var express = require('express');
var port = 8080;

var app = express();
app.get('/', function (req, res) {
  res.send('Hello World\n');
});

app.listen(port)
console.log('Running on http://localhost:' + port);

Dockerfile

FROM   ubuntu:13.10
RUN    apt-get update
RUN    apt-get install -y nodejs npm
ADD    . /src
RUN    cd /src; npm install
EXPOSE 8080
CMD    ["nodejs", "/src/app.js"]

package.json

{
  "name": "ubuntu-node-hello",
  "private": true,
  "version": "0.0.1",
  "description": "Node.js Hello World app on Ubuntu using docker",
  "author": "Leonardo Vidarte <lvidarte@gmail.com>",
  "dependencies": {
    "express": "3.2.4"
  }
}

Then build the image

docker build -t <your username>/ubuntu-node-hello .

And run the image

docker run -p 49160:8080 -d <your username>/ubuntu-node-hello

Check the app on http://localhost:49160

Based on http://docs.docker.io/en/latest/examples/nodejs_web_app/

Download my image created by the above code

docker pull lvidarte/ubuntu-node-hello