/**
  * @param string $identifier 
  * @return void
  */
 public function deleteCommand($identifier)
 {
     $deployment = $this->persistenceManager->getObjectByIdentifier($identifier, 'Lightwerk\\SurfCaptain\\Domain\\Model\\Deployment');
     if ($deployment instanceof Deployment) {
         $this->deploymentRepository->remove($deployment);
         $this->outputLine('deployment removed');
     } else {
         $this->outputLine('no deployment found');
     }
 }