hosts/monitoring-3: Add alert for Synapse

2023-12-01 17:50:54 +01:00
parent 2e68d00ca4
commit cff95863fd
2 changed files with 11 additions and 2 deletions
--- a/hosts/monitoring-3/rules.yml
+++ b/hosts/monitoring-3/rules.yml
@@ -57,3 +57,11 @@ groups:
    annotations:
      summary: "Kernel of {{ $labels.instance }} changed"
      description: "The Kernel {{ $labels.instance }} booted with, isn't the target Kernel. A reboot may be required."
+  - alert: SynapseUnavailable
+    expr: last_over_time(probe_success{instance="monitoring-3.net.clerie.de", job="blackbox_local_synapse", target="matrix.entr0py.de"}[5m]) == 0
+    for: 5m
+    labels:
+      severity: warning
+    annotations:
+      summary: "Synapse of {{ $labels.target }} unavailable"
+      description: "The Synapse backend of {{ $labels.instance }} is unreachable or returns garbage"