From e9414209f59febab7b2537ebf86a86823c60926b Mon Sep 17 00:00:00 2001
From: clerie <git@clerie.de>
Date: Sun, 2 Oct 2022 11:59:37 +0200
Subject: [PATCH] hosts/monitoring-3: alert for hosts that just booted

---
 hosts/monitoring-3/rules.yml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/hosts/monitoring-3/rules.yml b/hosts/monitoring-3/rules.yml
index 05c0a4b..864ac18 100644
--- a/hosts/monitoring-3/rules.yml
+++ b/hosts/monitoring-3/rules.yml
@@ -24,3 +24,10 @@ groups:
     annotations:
       summary: "Storage for backup is nearly full"
       description: "Storage for backups is nearly full"
+  - alert: InstanceJustBooted
+    expr: time() - node_boot_time_seconds{job="node-exporter"} <= 300
+    labels:
+      severity: warning
+    annotations:
+      summary: "Uptime of {{ $labels.instance }} less than 5 min"
+      description: "{{ $labels.instance }} just booted"