From 8855886547499c54c92e6ffd7baf5ad018f52a71 Mon Sep 17 00:00:00 2001
From: SebastianStork <git@sstork.dev>
Date: Tue, 3 Mar 2026 17:23:19 +0100
Subject: [PATCH] prometheus, alertmanager: Add description to alert

---
 modules/nixos/services/alertmanager.nix | 5 +----
 modules/nixos/services/prometheus.nix   | 5 ++++-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/modules/nixos/services/alertmanager.nix b/modules/nixos/services/alertmanager.nix
index 45bbf84..4a2dcd8 100644
--- a/modules/nixos/services/alertmanager.nix
+++ b/modules/nixos/services/alertmanager.nix
@@ -75,10 +75,7 @@ in
             notification = {
               topic = "splitleaf";
               priority = "default";
-              templates = {
-                title = ''{{ index .Annotations "summary" }}'';
-                description = "";
-              };
+              templates.title = ''{{ index .Annotations "summary" }}'';
               tags = [
                 {
                   condition = ''status == "resolved"'';
diff --git a/modules/nixos/services/prometheus.nix b/modules/nixos/services/prometheus.nix
index 7c1b17c..f9984b5 100644
--- a/modules/nixos/services/prometheus.nix
+++ b/modules/nixos/services/prometheus.nix
@@ -89,7 +89,10 @@ in
               expr = "up == 0";
               for = "2m";
               labels.severity = "critical";
-              annotations.summary = "{{ $labels.instance }} is DOWN";
+              annotations = {
+                summary = "{{ $labels.instance }} is DOWN";
+                description = "{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 2 minutes.";
+              };
             };
           };
         }