Naive load balancer written in Node.js

balanceador.js

// balanceador de carga

var http = require('http');

// npm install http-proxy
var http_proxy = require('http-proxy');
var proxServer = 0;
var servidores = [
    {'url':'http://localhost:8085'},
    {'url':'http://localhost:8090'},
    {'url':'http://localhost:8095'}];

var proxy = http_proxy.createProxy();    
        
require('http').createServer(function(req, res) {
  var servidor = servidores[proxServer];  

  proxy.web(req, res, {
    target: servidor.url
  }, function(e) { console.log(e); });
  proxServer = proxServer == 2 ? 0 : proxServer + 1;
}).listen(8080);    

It works! You have to install http-proxy ("[sudo] npm install http-proxy"). For future development, parametrize the server's table, and, perhaps, include a VM instantiation option, based on current load. You can also check the server's load before routing the request.