public function getStatusMessages(AlmanacService $service)
 {
     $messages = parent::getStatusMessages($service);
     if (!$service->getIsLocked()) {
         $doc_href = PhabricatorEnv::getDoclink('User Guide: Phabricator Clusters');
         $doc_link = phutil_tag('a', array('href' => $doc_href, 'target' => '_blank'), pht('Learn More'));
         $messages[] = pht('This is an unlocked cluster service. After you finish editing ' . 'it, you should lock it. %s.', $doc_link);
     }
     return $messages;
 }