Dockerでpm2 ref: http://qiita.com/5t111111/items/8f1f91cf3c15c6cff52f

file0.txt

FROM node

WORKDIR /nodeapp

ADD package.json /nodeapp/
ADD index.js /nodeapp/

RUN npm install

EXPOSE  1337

CMD ["node_modules/pm2/bin/pm2", "--no-daemon", "start", "index.js"]

file1.txt

{
  "name": "docker-pm2",
  "version": "0.0.1",
  "description": "Docker pm2 example",
  "main": "index.js",
  "author": "5t111111",
  "dependencies": {
    "pm2": "latest"
  }
}

file2.txt

var http = require('http');
http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
}).listen(1337);

file3.txt

$ docker build .

file4.txt

$ docker run -P -d <イメージID>

file5.txt

$ docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS              PORTS                     NAMES
f89174a4ac15        392c405d84f6        node_modules/pm2/bin   48 seconds ago      Up 47 seconds       0.0.0.0:49169->1337/tcp   sad_shockley

file6.txt

$ curl -i localhost:49169
HTTP/1.1 200 OK
Content-Type: text/plain
Date: Thu, 03 Jul 2014 14:57:45 GMT
Connection: keep-alive
Transfer-Encoding: chunked

Hello World