root: implement monitored tasks

passbook/core/tasks.py

@@ -3,14 +3,16 @@ from django.utils.timezone import now
 from structlog import get_logger
 
 from passbook.core.models import ExpiringModel
+from passbook.lib.tasks import MonitoredTask, TaskResult, TaskResultStatus
 from passbook.root.celery import CELERY_APP
 
 LOGGER = get_logger()
 
 
-@CELERY_APP.task()
-def clean_expired_models():
+@CELERY_APP.task(bind=True, base=MonitoredTask)
+def clean_expired_models(self: MonitoredTask):
     """Remove expired objects"""
+    messages = []
     for cls in ExpiringModel.__subclasses__():
         cls: ExpiringModel
         amount, _ = (
@@ -20,3 +22,5 @@ def clean_expired_models():
             .delete()
         )
         LOGGER.debug("Deleted expired models", model=cls, amount=amount)
+        messages.append(f"Deleted {amount} expired {cls._meta.verbose_name_plural}")
+    self.set_status(TaskResult(TaskResultStatus.SUCCESSFUL, messages))

passbook/core/tests/test_tasks.py

@@ -14,5 +14,5 @@ class TestTasks(TestCase):
         """Test Token cleanup task"""
         Token.objects.create(expires=now(), user=get_anonymous_user())
         self.assertEqual(Token.objects.all().count(), 1)
-        clean_expired_models()
+        clean_expired_models.delay()
         self.assertEqual(Token.objects.all().count(), 0)