add isolated job controller_id to summary fields

awx/api/serializers.py

@@ -106,7 +106,7 @@ SUMMARIZABLE_FK_FIELDS = {
     'source_script': ('name', 'description'),
     'role': ('id', 'role_field'),
     'notification_template': DEFAULT_SUMMARY_FIELDS,
-    'instance_group': {'id', 'name'},
+    'instance_group': {'id', 'name', 'controller_id'},
     'insights_credential': DEFAULT_SUMMARY_FIELDS,
 }
 

awx/main/access.py

@@ -2037,6 +2037,7 @@ class UnifiedJobAccess(BaseAccess):
             'modified_by',
             'unified_job_node__workflow_job',
             'unified_job_template',
+            'instance_group',
             Prefetch('labels', queryset=Label.objects.all().order_by('name'))
         )