add celery with task clearing task

MUOR/MUOR/settings.py

@@ -25,7 +25,7 @@ SECRET_KEY = 'django-insecure-t52#vo-k9ty*$@u9bf75hrkd#^o_)gadrz9$7w%xnkb-0#y!bi
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = True
 
-ALLOWED_HOSTS = ['django']
+ALLOWED_HOSTS = ['django', 'localhost']
 
 # Application definition
 
@@ -139,4 +139,14 @@ AUTH_USER_MODEL = "MUOR.Profile"
 
 AVAILABLE_PORTS_RANGE = (6000, 7000)
 
+SESSION_EXPIRE_AT_BROWSER_CLOSE = True
+SESSION_COOKIE_AGE = 60 * 60
 
+CELERY_BROKER_URL = 'redis+socket:///var/run/redis/redis-server.sock'
+CELERY_TIMEZONE = "Europe/Warsaw"
+CELERY_BEAT_SCHEDULE = {
+    'daily_report': {
+        'task': 'clear_sessions',
+        'schedule': 60,
+    }
+}

MUOR/MUOR/signals.py

@@ -1,10 +1,11 @@
-from django.db.models.signals import post_save
+from django.db.models.signals import post_save, pre_delete
 from django.dispatch import receiver
 from .DockerManager import DockerManager
 from .NGINXConfigurator import NGINXConfigurator
 from .models import Profile, Session
 from django.contrib.auth.signals import user_logged_in, user_logged_out
 from django.conf import settings
+from django.contrib.sessions.models import Session as DjangoSession
 
 
 def get_sessions_data():
@@ -57,11 +58,11 @@ def profile_start_up(sender, user, request, **kwargs):
         NGINXConfigurator.refresh_config(get_sessions_data())
 
 
-@receiver(user_logged_out)
+@receiver(pre_delete, sender=DjangoSession)
-def profile_logged_out(sender, user, request, **kwargs):
+def close_session(sender, instance, **kwargs):
     # Obtaining container_id
     try:
-        session = Session.objects.get(user=user)
+        session = Session.objects.get(sessionid=instance.session_key)
         container_id = session.container_id
 
         # Turn off and delete container
@@ -70,6 +71,7 @@ def profile_logged_out(sender, user, request, **kwargs):
 
         # Delete session
         session.delete()
+        print("Closed session!")
     except Session.DoesNotExist:
         pass
     NGINXConfigurator.refresh_config(get_sessions_data())

MUOR/MUOR/tasks.py

@@ -0,0 +1,7 @@
+from celery import shared_task
+from django.core import management
+
+
+@shared_task(name="clear_sessions")
+def clear_sessions():
+    management.call_command('clearsessions')

MUOR/requirements.txt

@@ -1,3 +1,6 @@
 Django
 django-crispy-forms
 docker
+celery
+redis
+django-redis