===== Flapjack's Architecture =====

==== Check lifecycle ====

  - create check in admin interface
  - clear jobs on beanstalkd
  - run //flapjack-populator//
  - check is run by //flapjack-worker//
    - result is written onto beanstalkd
    - check is written back on beanstalkd with a delay
  - result is processed by //flapjack-worker//
    * if the check is failing
      - user is notified if the check's parents aren't failing
      - event is created from result and persisted