code: function bootstrap(next) {
        if (!options.commands || !options.commands.length) {
          return next();
        }
  
        var hasErr;
  
        self.ssh({
          keys: options.keys,
          server: options.server,
          commands: options.commands,
          remoteUser: options.remoteUser,
          tunnel: options.tunnel
        }).on('error', function (err) {
          if (!hasErr) {
            hasErr = true;
            next(err);
          }
        }).on('complete', function (server, stdout) {
          if (!hasErr) {
            next(null, stdout);
          }
        });
      }
docs: 3. Bootstrap the server with the appropriate commands.