From b6e411b9852b2b0dc5cb9a7d333352845363148d Mon Sep 17 00:00:00 2001
From: Tom Hughes <tom@compton.nu>
Date: Sat, 3 Dec 2022 15:04:16 +0000
Subject: [PATCH 1/1] Add an alert for exim being down

---
 cookbooks/prometheus/templates/default/alert_rules.yml.erb | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cookbooks/prometheus/templates/default/alert_rules.yml.erb b/cookbooks/prometheus/templates/default/alert_rules.yml.erb
index 3dd1af873..be10977a4 100644
--- a/cookbooks/prometheus/templates/default/alert_rules.yml.erb
+++ b/cookbooks/prometheus/templates/default/alert_rules.yml.erb
@@ -263,6 +263,11 @@ groups:
           alertgroup: "{{ $labels.site }}"
   - name: mail
     rules:
+      - alert: exim down
+        expr: exim_up == 0
+        for: 5m
+        labels:
+          alertgroup: "{{ $labels.instance }}"
       - alert: exim queue length
         expr: exim_queue > exim_queue_limit
         for: 60m
-- 
2.45.2