traefik: fix prometheusrule

system-apps/traefik/values.yaml

@@ -24,6 +24,16 @@ traefik:
         enabled: true
       prometheusRule:
         enabled: true
+        rules:
+          - alert: TraefikDown
+            expr: up{job="traefik"} == 0
+            for: 5m
+            labels:
+              context: traefik
+              severity: warning
+            annotations:
+              summary: "Traefik Down"
+              description: "{{ $labels.pod }} on {{ $labels.nodename }} is down"
   deployment:
     kind: DaemonSet
     additionalContainers: