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django-celery-inspect

Django reusable-app that uses Celery Inspect command to monitor workers via the Django REST Framework.

The main idea is to be able to monitor celery workers from another external service or server via a REST API and figure out if they are running or not by using celery's own [Inspect API] (http://docs.celeryproject.org/en/latest/userguide/workers.html#inspecting-workers).

Quick start

  1. Install:

     pip install django-celery-inspect
    
  2. Add "celery_inspect" to your INSTALLED_APPS setting like this:

     INSTALLED_APPS = [
    
       ...
       'celery_inspect',
     ]
    
  3. Add the following to your urls.py:

     url(r'^api/v1/celery-inspect/', include('celery_inspect.urls', namespace='celery_inspect')),
    
  4. If you Desire to use DRF's Authentication to protect these endpoints (Optional).

     REST_FRAMEWORK = {
         'DEFAULT_AUTHENTICATION_CLASSES': (
     	'rest_framework.authentication.TokenAuthentication',
         ),
         'DEFAULT_PERMISSION_CLASSES': (
     	'rest_framework.permissions.IsAuthenticated',
         ),
     }
    

Usage:

  1. http://localhost:8000/api/v1/celery-inspect/ping/

     {
     	"worker2@localhost:8000": {
     	    "ok": "pong"
     	},
     	"worker1@localhost:8000": {
     	    "ok": "pong"
     	}
     	}
    
  2. http://localhost:8000/api/v1/celery-inspect/active/

     {
         "worker2@localhost:8000": [],
         "worker1@localhost:8000": []
     }
    
  3. http://localhost:8000/api/v1/celery-inspect/registered/

     {
         "worker2@localhost:8000": [
             "core.tasks.db_backup",
             "core.tasks.send_queued_emails",
             "yy.tasks.assign_to_mongo",
             "xx.tasks.check_for_new_registered",
             "xx.tasks.create_and_associate_manager",
             "qq.celery.debug_task"
         ],
         "worker1@localhost:8000": [
             "core.tasks.db_backup",
             "core.tasks.send_queued_emails",
             "yy.tasks.assign_to_mongo",
             "xx.tasks.check_for_new_registered",
             "xx.tasks.create_and_associate_manager",
             "qq.celery.debug_task"
         ]
     }
    
  4. http://localhost:8000/api/v1/celery-inspect/scheduled/

     {
         "worker2@localhost:8000": [],
         "worker1@localhost:8000": []
     }
    

If for some reason you can only deal with status codes (This feature will only work if you have django-celery installed)

  1. http://localhost:8000/api/v1/celery-inspect/active-status/

    • Returns 200 if all workers in WorkerState are up.
    • Returns 404 if workers are down (WorkerState != then inspect()).
    • Returns 501 if djcelery a.k.a django-celery is not installed.

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Django reusable app that uses Celery Inspect command to monitor workers/tasks via the Django REST Framework

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