From e8158e6c0f525e9324ebd61e95d81100fbbef374 Mon Sep 17 00:00:00 2001
From: DannyDannyDanny <dth@taiga.ai>
Date: Sun, 10 May 2026 16:47:37 +0200
Subject: [PATCH] =?UTF-8?q?monitoring:=20fix=20prometheus=20=E2=86=92=20al?=
 =?UTF-8?q?ertmanager=20loopback=20(IPv4=20vs=20IPv6)?=
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Alertmanager binds [::1]:9093 but Prometheus was dialing
127.0.0.1:9093 — connection refused, so alerts fired internally
but never reached Alertmanager. Switch the target to [::1]:9093
to match the bind.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 modules/monitoring-prometheus-server.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/monitoring-prometheus-server.nix b/modules/monitoring-prometheus-server.nix
index 6b02d14..9aedc14 100644
--- a/modules/monitoring-prometheus-server.nix
+++ b/modules/monitoring-prometheus-server.nix
@@ -57,7 +57,7 @@ in {
     ];
 
     alertmanagers = [{
-      static_configs = [{ targets = [ "127.0.0.1:9093" ]; }];
+      static_configs = [{ targets = [ "[::1]:9093" ]; }];
     }];
 
     alertmanager = {