Create existingSecret for grafana-creds

helm/monitoring/templates/grafana.yaml

@@ -76,12 +76,12 @@ spec:
             - name: GF_SECURITY_ADMIN_USER
               valueFrom:
                 secretKeyRef:
-                  name: grafana-creds
+                  name: {{ .Values.grafana.existingSecret }}
                   key: username
             - name: GF_SECURITY_ADMIN_PASSWORD
               valueFrom:
                 secretKeyRef:
-                  name: grafana-creds
+                  name: {{ .Values.grafana.existingSecret }}
                   key: password
             - name: GF_SERVER_ROOT_URL # used to serve through ingress-nginx
               value: "%(protocol)s://%(domain)s:%(http_port)s/grafana/"

helm/monitoring/values.yaml

@@ -54,8 +54,7 @@ fluentd:
       memory: 200Mi
 
 grafana:
-  username: nemesis
-  # password: ""
+  existingSecret: grafana-creds
   prometheusUrl: http://prometheus-service.default.svc:9090
   image:
     repository: grafana/grafana