Docs & cleanup

docs/models/extras/configcontext.md

@@ -18,6 +18,10 @@ A numeric value which influences the order in which context data is merged. Cont
 
 The context data expressed in JSON format.
 
+### Data File
+
+Config context data may optionally be sourced from a remote [data file](../core/datafile.md), which is synchronized from a remote data source. When designating a data file, there is no need to specify local data for the config context: It will be populated automatically from the data file.
+
 ### Is Active
 
 If not selected, this config context will be excluded from rendering. This can be convenient to temporarily disable a config context.

docs/release-notes/version-3.5.md

@@ -4,6 +4,7 @@
 
 ### Enhancements
 
+* [#9073](https://github.com/netbox-community/netbox/issues/9073) - Enable syncing config context data from remote sources
 * [#11254](https://github.com/netbox-community/netbox/issues/11254) - Introduce the `X-Request-ID` HTTP header to annotate the unique ID of each request for change logging
 * [#11440](https://github.com/netbox-community/netbox/issues/11440) - Add an `enabled` field for device type interfaces
 * [#11517](https://github.com/netbox-community/netbox/issues/11517) - Standardize the inclusion of related objects across the entire UI

netbox/extras/api/serializers.py

@@ -359,7 +359,9 @@ class ConfigContextSerializer(ValidatedModelSerializer):
         required=False,
         many=True
     )
-    data_source = NestedDataSourceSerializer()
+    data_source = NestedDataSourceSerializer(
+        required=False
+    )
     data_file = NestedDataFileSerializer(
         read_only=True
     )