helm(minor): add service monitors

passbook/root/monitoring.py

@@ -1,10 +1,12 @@
 """Metrics view"""
 from base64 import b64encode
+
 from django.conf import settings
+from django.http import Http404, HttpRequest, HttpResponse
 from django.views import View
-from django.http import HttpRequest, HttpResponse, Http404
 from django_prometheus.exports import ExportToDjangoView
 
+
 class MetricsView(View):
     """Wrapper around ExportToDjangoView, using http-basic auth"""