From 4af8a52b6eb471517aa4096cb934d4455b0fa80f Mon Sep 17 00:00:00 2001
From: Kopatz <7265381+Kropatz@users.noreply.github.com>
Date: Sat, 8 Nov 2025 15:48:21 +0100
Subject: [PATCH] add node-exporter to server

---
 modules/services/grafana.nix         | 13 +++++++++++++
 modules/services/node-exporter.nix   | 17 +++++++++++++++++
 systems/amd-server/configuration.nix |  1 +
 3 files changed, 31 insertions(+)
 create mode 100644 modules/services/node-exporter.nix

diff --git a/modules/services/grafana.nix b/modules/services/grafana.nix
index 7fb178b..ca25192 100644
--- a/modules/services/grafana.nix
+++ b/modules/services/grafana.nix
@@ -166,6 +166,19 @@ in
           }
         ];
       }
+      {
+        job_name = "host";
+        static_configs = [
+          {
+            targets = [
+              "192.168.0.20:9100"
+            ];
+            labels = {
+              instance = "host";
+            };
+          }
+        ];
+      }
       {
         job_name = "scheibnmeister";
         static_configs = [
diff --git a/modules/services/node-exporter.nix b/modules/services/node-exporter.nix
new file mode 100644
index 0000000..7b18ff8
--- /dev/null
+++ b/modules/services/node-exporter.nix
@@ -0,0 +1,17 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}:
+let
+in
+{
+  services.prometheus.exporters.node = {
+    enable = true;
+    openFirewall = true;
+    firewallRules = ''
+      ip saddr 192.168.0.10 tcp dport 9100 counter accept comment node_exporter_allow_from_main_server
+    '';
+  };
+}
diff --git a/systems/amd-server/configuration.nix b/systems/amd-server/configuration.nix
index f8ef7b0..7a6ee50 100644
--- a/systems/amd-server/configuration.nix
+++ b/systems/amd-server/configuration.nix
@@ -13,6 +13,7 @@
     ./hardware-configuration.nix
     ../../modules/misc/kernel.nix
     ../../modules/services/ssh.nix
+    ../../modules/services/node-exporter.nix
   ];
 
   custom = {