contour: Add alert for envoy pod down

When pods spawned by envoy daemonset are unavailable for more than a minute then an alert is triggered. Signed-off-by: Suraj Deshmukh <suraj@kinvolk.io>
kinvolk · Mar 19, 2020 · fc11bcf · fc11bcf
1 parent f904cb4
commit fc11bcf
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diff --git a/assets/components/contour/manifests-metrics/04-alerts.yaml b/assets/components/contour/manifests-metrics/04-alerts.yaml
@@ -16,3 +16,11 @@ spec:
       annotations:
         description: '{{ $labels.instance }}: Contour pod is not available for last one minute.'
         summary: '{{ $labels.instance }}: Contour deployment pods.'
+  - name: envoy-rules
+    rules:
+    - alert: EnvoyPodsAvailability
+      expr: kube_daemonset_status_number_unavailable{daemonset="envoy",namespace="projectcontour"} != 0
+      for: 1m
+      annotations:
+        description: '{{ $labels.instance }}: Envoy pod is not available for last one minute.'
+        summary: '{{ $labels.instance }}: Envoy deployment pods.'