Apache + node-http-proxy(v1.0)でwebsocket対応のリバースプロキシを作る

簡易版です。https://gist.github.com/novi/1830085
を参考にさせていただきました。

httpd.conf

Listen 8081

NameVirtualHost *:8081

<VirtualHost *:8081> 
  DocumentRoot /path/
  ServerName www.example1.com
  ServerAlias example1.com *.example1.com
</VirtualHost>

<VirtualHost *:8081>
  DocumentRoot /path/
  ServerName www.example2.com
  ServerAlias example2.com *.example2.com
</VirtualHost> 

http-proxy.js

var http = require('http');
var httpProxy = require('http-proxy');

var normalProxy = new httpProxy.createProxyServer({
	target: {
	host: 'localhost',
	port: 8081
}});
 
var webSocketProxy = new httpProxy.createProxyServer({
	target: {
	host: 'localhost',
	port: 3000
}});
	
var server = http.createServer(function ( req, res ) {
	if (req.headers.host == 'example1.com') {
		normalProxy.web( req, res );
	} else if (req.headers.host == 'example2.com') {
		webSocketProxy.web( req, res );
	} else {
		res.writeHead(404);
		res.end();
	}
});

server.on( 'upgrade', function( req, socket, head ) {
	webSocketProxy.ws( req, socket, head );
});
server.listen(80);
console.log('It Works!');