start-multiple.js

var async = require('async'),
    forever = require('forever');

function startApp (options, next){
  var child = new (forever.Monitor) (script, { 
    'options': [
      '--port', options.port, 
      '--secret', options.secret, 
      '--userSchema', options.userSchema
    ]
  });
	
  child.start();
  child.on('start', function (_, data) {
    console.log('Forever process running server.js on ' + options.port);
    next(null, child);
  });
}

// Array config data
var apps = [ 
  { userSchema: 'test1', port: 8000, secret: 'krFB6so8GZdJCqfcu9oh' },
  { userSchema: 'test2', port: 8001, secret: 'xIXQw2RfmFqNTwlhmQmw' }
]

async.map(apps, startApp, function (err, monitors) {
  forever.startServer(monitors, function () { 
    //
    // Ignore data returned from `.startServer()`
    //
  });
});

// Calling during app.get 
app.get('/servers', requiresLogin, function (req, res) {
  forever.list(false, function (err, data) {
    if (err) {
      throw err;
    }

    console.log(data)
  })
}