django-health-check

This project checks the health for a number of backends and sees if they are able to connect and do a simple action. For example, check out the Django ORM backend:

class DjangoDatabaseBackend(BaseHealthCheckBackend):
    def check_status(self):
        try:
            obj = TestModel.objects.create(title="test")
            obj.title = "newtest"
            obj.save()
            obj.delete()
            return True
        except IntegrityError:
            raise ServiceReturnedUnexpectedResult("Integrity Error")
        except DatabaseError:
            raise ServiceUnavailable("Database error")

The project is made using some of the same plugin code that the Django admin site uses - so when you have successfully written a new plugin, you register it to the pool, e.g.

plugin_dir.register(DjangoDatabaseBackend)

Install

Add this to urls.py

url(r'^ht/', include('health_check.urls'))

Add required apps:

'health_check',
'health_check_celery',
'health_check_db',
'health_check_cache',
'health_check_storage',

Remember to add dependencies, for example djcelery for Celery. You should have that already, if you have Celery running. You'll also have to make sure that you have a result backend configured.

If you are using Celery 3, use the health_check_celery3 application instead of health_check_celery.

Set up monitoring

E.g. add to pingdom - django-health-check will return HTTP 200 if everything is OK and HTTP 500 if anything is not working.

Dependencies

Django 1.4+