add custom link initializers

Author: MajesticFalcon

initializers/custom_links.yml

@@ -0,0 +1,21 @@
+## Possible Choices:
+##   new_window:
+##   - True
+##   - False
+##   content_type_id:
+##   - device
+##   - site
+##   - any-other-content-type
+##
+## Examples:
+
+# - name: link_to_repo
+  # text: 'Link to docker repository'
+  # url: 'https://github.com/netbox-community/netbox-docker'
+  # new_window: False
+  # content_type: device
+# - name: link_to_localhost
+  # text: 'Link to the users localhost'
+  # url: 'http://localhost'
+  # new_window: True
+  # content_type: device

startup_scripts/280_custom_links.py

@@ -0,0 +1,24 @@
+from django.contrib.contenttypes.models import ContentType
+from extras.models import CustomLink
+from startup_script_utils import load_yaml
+import sys
+
+
+custom_links = load_yaml('/opt/netbox/initializers/custom_links.yml')
+
+if custom_links is None:
+  sys.exit()
+
+def get_content_type_id(content_type_str):
+  for type in ContentType.objects.all():
+    if type.name == content_type_str:
+      return type.id
+
+for link in custom_links:
+  content_type = link.pop('content_type')
+  link['content_type_id'] = get_content_type_id(content_type)
+  if link['content_type_id'] is None:
+    print("⚠️ Error determining content type id for user declared var: {0}".format(content_type))
+  else:
+    CustomLink(**link).save()
+