Laravel Envoy Permissions?

Ok, so I am trying to call Envoy from a controller function but running into permissions problems that nobody else seems to be getting?

I have installed envoy globally and done a symlink to /usr/local/bin so that my site can see it. But I cannot figure out why it doesn't have permission.

I am running from Ubuntu 16.04, Nginx, PHP 7.0

Any help is appreciated:

$result = [];
         $live = false;

         $process = new \Symfony\Component\Process\Process('envoy run deploy --domain="test"');
         $process->setTimeout(3600);
         $process->setIdleTimeout(300);
         $process->setWorkingDirectory(base_path());
         $process->run(
             function ($type, $buffer) use ($live, &$result) {
                 $buffer = str_replace('[127.0.0.1]: ', '', $buffer);

                 if ($live) {
                     echo $buffer . '</br />';
                 }

                 $result[] = $buffer;
             }
         );

         dd($result);

But getting:

0 => "sh: 1: "
  1 => "envoy: Permission denied"
  2 => "\n"

via Chebli Mohamed