title: Disable crob job on specifc App Engine instance
body: <p>The situation: I have staging and production apps on App Engine. And I am running back ups for my entities using <a href="https://developers.google.com/appengine/articles/scheduled_backups" rel="nofollow">Scheduled Backups</a>, which is slightly different from the cron jobs declared by developer. Which means that I am unable to check if it is a staging app or production app before the backup cron is started. </p>
  
  <p>Right now, the only way is to clear the cron.xml manually before deploying to the staging app.</p>
  
  <p>So the question is: is there a better/automated way?</p>