Implements #81 - webhook event backend (#1640)

* merge branch develop

* bugfix, signals for virtualization's class wasn't correctly defined

* updated webhooks for 2.4 and cleanup

* updated docs to cover changes to supervisor config

* review changes and further cleanup

* updated redis connection settings

* cleanup settings

netbox/circuits/apps.py

@@ -9,3 +9,8 @@ class CircuitsConfig(AppConfig):
 
     def ready(self):
         import circuits.signals
+
+        # register webhook signals
+        from extras.webhooks import register_signals
+        from .models import Circuit, Provider
+        register_signals([Circuit, Provider])

netbox/circuits/models.py

@@ -61,6 +61,8 @@ class Provider(CreatedUpdatedModel, CustomFieldModel):
 
     csv_headers = ['name', 'slug', 'asn', 'account', 'portal_url', 'noc_contact', 'admin_contact', 'comments']
 
+    serializer = 'circuits.api.serializers.ProviderSerializer'
+
     class Meta:
         ordering = ['name']
 
@@ -175,6 +177,8 @@ class Circuit(CreatedUpdatedModel, CustomFieldModel):
         'cid', 'provider', 'type', 'status', 'tenant', 'install_date', 'commit_rate', 'description', 'comments',
     ]
 
+    serializer = 'circuits.api.serializers.CircuitSerializer'
+
     class Meta:
         ordering = ['provider', 'cid']
         unique_together = ['provider', 'cid']