Cleanup & Reorg startup scripts (#691)

* Cleanup & Reorg startup scripts

startup_scripts/060_webhooks.py

@@ -0,0 +1,34 @@
+import sys
+
+from django.contrib.contenttypes.models import ContentType
+from extras.models import Webhook
+from startup_script_utils import load_yaml
+
+webhooks = load_yaml("/opt/netbox/initializers/webhooks.yml")
+
+if webhooks is None:
+    sys.exit()
+
+
+def get_content_type_id(hook_name, content_type):
+    try:
+        return ContentType.objects.get(model=content_type).id
+    except ContentType.DoesNotExist as ex:
+        print("⚠️ Webhook '{0}': The object_type '{1}' is unknown.".format(hook_name, content_type))
+        raise ex
+
+
+for hook in webhooks:
+    obj_types = hook.pop("object_types")
+
+    try:
+        obj_type_ids = [get_content_type_id(hook["name"], obj) for obj in obj_types]
+    except ContentType.DoesNotExist:
+        continue
+
+    webhook, created = Webhook.objects.get_or_create(**hook)
+    if created:
+        webhook.content_types.set(obj_type_ids)
+        webhook.save()
+
+        print("🪝 Created Webhook {0}".format(webhook.name))