Replace django-celery with base Celery (#791)

Update celery tasks to new style & remove djcelery
Vanilla celery + django-celery-beat take over the role of djcelery. Task schedules are consolidated into settings instead of residing in code.
Update docs and example supervisor configs.

eveonline/tasks.py

@@ -1,10 +1,8 @@
 from __future__ import unicode_literals
 from django.conf import settings
-from celery.task import periodic_task
 from django.contrib.auth.models import User
 from notifications import notify
 from celery import task
-from celery.task.schedules import crontab
 from authentication.models import AuthServicesInfo
 from eveonline.managers import EveManager
 from eveonline.models import EveApiKeyPair
@@ -17,10 +15,12 @@ from authentication.tasks import set_state
 import logging
 import evelink
 
+from alliance_auth.celeryapp import app
+
 logger = logging.getLogger(__name__)
 
 
-@task
+@app.task
 def refresh_api(api):
     logger.debug('Running update on api key %s' % api.api_id)
     still_valid = True
@@ -70,12 +70,12 @@ def refresh_api(api):
                    level="danger")
 
 
-@task
+@app.task
 def refresh_user_apis(user):
     logger.debug('Refreshing all APIs belonging to user %s' % user)
     apis = EveApiKeyPair.objects.filter(user=user)
     for x in apis:
-        refresh_api(x)
+        refresh_api.apply(args=(x,))
     # Check our main character
     auth = AuthServicesInfo.objects.get(user=user)
     if auth.main_char_id:
@@ -91,7 +91,7 @@ def refresh_user_apis(user):
     set_state(user)
 
 
-@periodic_task(run_every=crontab(minute=0, hour="*/3"))
+@app.task
 def run_api_refresh():
     if not EveApiManager.check_if_api_server_online():
         logger.warn("Aborted scheduled API key refresh: API server unreachable")
@@ -101,18 +101,18 @@ def run_api_refresh():
         refresh_user_apis.delay(u)
 
 
-@task
+@app.task
 def update_corp(id, is_blue=None):
     EveManager.update_corporation(id, is_blue=is_blue)
 
 
-@task
+@app.task
 def update_alliance(id, is_blue=None):
     EveManager.update_alliance(id, is_blue=is_blue)
     EveManager.populate_alliance(id)
 
 
-@periodic_task(run_every=crontab(minute=0, hour="*/2"))
+@app.task
 def run_corp_update():
     if not EveApiManager.check_if_api_server_online():
         logger.warn("Aborted updating corp and alliance models: API server unreachable")
@@ -123,7 +123,7 @@ def run_corp_update():
         is_blue = True if corp_id in settings.STR_BLUE_CORP_IDS else False
         try:
             if EveCorporationInfo.objects.filter(corporation_id=corp_id).exists():
-                update_corp(corp_id, is_blue=is_blue)
+                update_corp.apply(args=(corp_id,), kwargs={'is_blue': is_blue})
             else:
                 EveManager.create_corporation(corp_id, is_blue=is_blue)
         except ObjectNotFound:

eveonline/views.py

@@ -164,7 +164,7 @@ def user_refresh_api(request, api_id):
     if EveApiKeyPair.objects.filter(api_id=api_id).exists():
         api_key_pair = EveApiKeyPair.objects.get(api_id=api_id)
         if api_key_pair.user == request.user:
-            refresh_api(api_key_pair)
+            refresh_api.apply(args=(api_key_pair,))
             messages.success(request, _('Refreshed API key %(apiid)s') % {"apiid": api_id})
             set_state(request.user)
         else: