From b908e3e050d791a94acd4b472be2ae9bc1e29b4d Mon Sep 17 00:00:00 2001
From: Martin Weinelt <hexa@darmstadt.ccc.de>
Date: Tue, 7 Jul 2026 23:42:56 +0200
Subject: [PATCH] nixos/tests/kea: restore prometheus exporter test

---
 nixos/tests/kea.nix | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/nixos/tests/kea.nix b/nixos/tests/kea.nix
index e339c4cc7000..ec249f0c7150 100644
--- a/nixos/tests/kea.nix
+++ b/nixos/tests/kea.nix
@@ -110,6 +110,13 @@
             };
           };
         };
+
+        services.prometheus.exporters.kea = {
+          enable = true;
+          controlSocketPaths = [
+            config.services.kea.dhcp4.settings.control-socket.socket-name
+          ];
+        };
       };
 
     nameserver =
@@ -217,5 +224,9 @@
 
       with subtest("DDNS"):
           nameserver.wait_until_succeeds("kdig +short client.lan.nixos.test @10.0.0.2 | grep -q 10.0.0.3")
+
+      with subtest("Prometheus Exporter"):
+        router.log(router.execute("curl 127.0.0.1:9547")[1])
+        router.succeed("curl --silent 127.0.0.1:9547 | grep -qE '^kea_dhcp4_addresses_assigned_total.*1.0$'")
     '';
 }