fix(infra-monitoring): enable servicemonitor for karma

infra-monitoring/templates/karma/prometheus-rules.yaml

@@ -0,0 +1,32 @@
+{{- if and .Values.karma.enabled (.Capabilities.APIVersions.Has "monitoring.coreos.com/v1/PrometheusRule") }}
+---
+apiVersion: "monitoring.coreos.com/v1"
+kind: "PrometheusRule"
+metadata:
+  name: karma
+  labels:
+    {{- toYaml .Values.commons.prometheus.rules.labels | nindent 4 }}
+spec:
+  groups:
+    - name: "Karma"
+      rules:
+        - alert: "Karma scrape alertmanager"
+          expr: 'sum(karma_alertmanager_up) == 0'
+          for: "5m"
+          labels:
+            severity: "critical"
+          annotations:
+            {{`
+            summary: "No Alertmanager is reachable for more than 5 minutes."
+            `}}
+
+        - alert: "Karma scrape alertmanager"
+          expr: 'max(karma_alertmanager_up) by (alertmanager) == 0'
+          for: "5m"
+          labels:
+            severity: "warning"
+          annotations:
+            {{`
+            summary: "Alertmanager {{  $labels.alertmanager }} is not reachable for more than 5 minutes."
+            `}}
+{{- end }}

infra-monitoring/templates/karma/release.yaml

@@ -140,4 +140,8 @@ spec:
       {{- end }}
     {{- end }}
     {{- end }}{{/* end-with karma.ingress */}}
+    serviceMonitor:
+      enabled: {{ (.Capabilities.APIVersions.Has "monitoring.coreos.com/v1/ServiceMonitor") }}
+      additionalLabels:
+        {{- toYaml .Values.commons.prometheus.monitor.labels | nindent 8 }}
 {{- end }}