add CTiT setting for max UI job events

awx/api/views.py

@@ -3989,7 +3989,7 @@ class BaseJobEventsList(SubListAPIView):
     search_fields = ('stdout',)
 
     def finalize_response(self, request, response, *args, **kwargs):
-        response['X-UI-Max-Events'] = settings.RECOMMENDED_MAX_EVENTS_DISPLAY_HEADER
+        response['X-UI-Max-Events'] = settings.MAX_UI_JOB_EVENTS
         return super(BaseJobEventsList, self).finalize_response(request, response, *args, **kwargs)
 
 

awx/settings/defaults.py

@@ -166,7 +166,7 @@ STDOUT_MAX_BYTES_DISPLAY = 1048576
 
 # Returned in the header on event api lists as a recommendation to the UI
 # on how many events to display before truncating/hiding
-RECOMMENDED_MAX_EVENTS_DISPLAY_HEADER = 4000
+MAX_UI_JOB_EVENTS = 4000
 
 # The maximum size of the ansible callback event's res data structure
 # beyond this limit and the value will be removed

awx/ui/conf.py

@@ -52,3 +52,14 @@ register(
     category_slug='ui',
     feature_required='rebranding',
 )
+
+register(
+    'MAX_UI_JOB_EVENTS',
+    field_class=fields.IntegerField,
+    min_value=100,
+    label=_('Max Job Events Retreived by UI'),
+    help_text=_('Maximum number of job events for the UI to retreive within a '
+                'single request.'),
+    category=_('UI'),
+    category_slug='ui',
+)