gistfile1.js

var https = require('https'),
    path = require("path"),
    fs = require("fs"),
    crypto = require("crypto");

var certs = ["cer1", "cer2"].map(function(cer){
  var r = crypto.createCredentials({
        key:  fs.readFileSync(path.join(__dirname, 'certs/' + cer + '.nopass.key')),
        cert: fs.readFileSync(path.join(__dirname, 'certs/' + cer + '.crt'))
      }).context;
  r.name = cer;
  return r;
});

var options = {
  SNICallback: function(hostname){
    // if ("lalalala.com" === hostname)
    var cert = certs.shift();
    console.log("using: " + cert.name);
    certs.push(cert);
    return cert;
  }
};

https.createServer(options, function (req, res) {
  res.writeHead(200);
  res.end("hello world\n");
}).listen(8002);

console.log("listening on 8002");