this is just a gist, but it gives an idea

somthin' like that

var express = require('express'),
    http = require('http'),
    app = module.exports = express(),
    server = http.createServer(app),
    io = require('socket.io').listen(server);

server.listen(app.get('port'), function () {
   console.log("m-cms express server listening on port %d in %s mode", app.get('port'), app.get('env'));
   cb(null);
});