gistfile1.txt

var ssh = require('ssh2');
var Promise = require('bluebird');
var sshConnection = new ssh.Client();

sshConnection.connect({
  host: config['QN_Address'],
  port: 22,
  username: 'ec2-user',
  privateKey: require('fs').readFileSync(config['QN_Key'])
});


function getConnection() {
  return new Promise((resolve, reject) => {

    sshConnection
      .once('ready', function () {
        resolve(sshConnection);
      })
      .once('end', function () {
        reject();
      })
      .once('error', function (error) {
        reject(error);
      });
  });
}