Metrics are incorrectly prefixed with ingress path (#12316)

Grafana always exposes metrics at /metrics and thus are not scraped if an ingress path is provided.

http://docs.grafana.org/installation/configuration/#metrics
Signed-off-by: Martin Hoefling <martin.hoefling@gmx.de>

stable/prometheus-operator/Chart.yaml

@@ -9,7 +9,7 @@ name: prometheus-operator
 sources:
   - https://github.com/coreos/prometheus-operator
   - https://coreos.com/operators/prometheus
-version: 5.0.0
+version: 5.0.1
 appVersion: 0.29.0
 home: https://github.com/coreos/prometheus-operator
 keywords:

stable/prometheus-operator/templates/grafana/servicemonitor.yaml

@@ -19,5 +19,5 @@ spec:
     {{- if .Values.grafana.serviceMonitor.interval }}
     interval: {{ .Values.grafana.serviceMonitor.interval }}
     {{- end }}
-    path: "{{ trimSuffix "/" .Values.grafana.ingress.path }}/metrics"
+    path: "/metrics"
 {{- end }}