MON-4516: Use endpointslices for metrics (operator-framework#2516)

* Add permissions on endpointslice to Prometheus Role
* Use serviceDiscoveryRole: EndpointSlice in ServiceMonitors

Signed-off-by: Todd Short <tshort@redhat.com>

Author: tmshort

helm/olmv1/templates/rbac/role-olmv1-system-metrics-monitor-role.yml

@@ -21,5 +21,13 @@ rules:
       - get
       - list
       - watch
+  - apiGroups:
+      - discovery.k8s.io
+    resources:
+      - endpointslices
+    verbs:
+      - get
+      - list
+      - watch
 {{- end -}}
 {{- end -}}

helm/olmv1/templates/servicemonitor-olmv1-system-metrics-monitor.yml

@@ -29,5 +29,6 @@ spec:
   selector:
     matchLabels:
       app.kubernetes.io/name: {{ include "olmv1.label.name" . }}
+  serviceDiscoveryRole: EndpointSlice
 {{- end -}}
 {{- end -}}