text: 
  var config = {
  	local: {
  		mode: 'local',
  		port: 3000,
  		rabbitUrl: 'amqp://localhost'
  	},
  	staging: {
  		mode: 'staging',
  		port: 4000,
  		rabbitUrl: ''
  	},
  	prod: {
  		mode: 'prod',
  		port: process.env.PORT || 5000,
  		rabbitUrl: ''
  	}
  };
  
  module.exports = function (mode) {
  	return config[mode || process.argv[2] || 'local'] || config.local;
  };
  