Patch for populating targets in graphite-web context

targetsContext1.patch

--- /opt/graphite/webapp/graphite/render/views.py.bak   2021-10-07 19:04:25.052907254 +0000
+++ /opt/graphite/webapp/graphite/render/views.py       2021-10-13 20:11:51.136487024 +0000
@@ -73,6 +73,8 @@
     'prefetched' : {},
     'xFilesFactor' : requestOptions['xFilesFactor'],
     'maxDataPoints' : requestOptions.get('maxDataPoints', None),
+    'maxStep': requestOptions.get('maxStep', None),
+    'targets_serialized': requestOptions.get('targets_serialized', None),
   }
   data = requestContext['data']

@@ -370,6 +372,9 @@
   for target in mytargets:
     requestOptions['targets'].append(target)

+  if requestOptions['targets']:
+    requestOptions['targets_serialized'] = pickle.dumps(requestOptions['targets'])
+
   template = dict()
   for key, val in queryParams.items():
     if key.startswith("template["):
@@ -393,6 +398,8 @@
     requestOptions['maxDataPoints'] = int(queryParams['maxDataPoints'])
   if 'noNullPoints' in queryParams:
     requestOptions['noNullPoints'] = True
+  if 'maxStep' in queryParams and queryParams['maxStep'].isdigit():
+    requestOptions['maxStep'] = int(queryParams['maxStep'])

   requestOptions['localOnly'] = queryParams.get('local') == '1'