From a4d83d6bb8c7337ad5d39019e026d4e996494404 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torjus=20H=C3=A5kestad?= <torjus@usit.uio.no>
Date: Mon, 18 Mar 2024 00:18:17 +0100
Subject: [PATCH] Add monitoring services

---
 hosts/gunter/configuration.nix |  1 +
 system/monitoring.nix          | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 system/monitoring.nix

diff --git a/hosts/gunter/configuration.nix b/hosts/gunter/configuration.nix
index e6c4875..413b189 100644
--- a/hosts/gunter/configuration.nix
+++ b/hosts/gunter/configuration.nix
@@ -3,6 +3,7 @@
 {
   imports = [
     ./hardware-configuration.nix
+    ../../system/monitoring.nix
   ];
 
   # Sops stuff
diff --git a/system/monitoring.nix b/system/monitoring.nix
new file mode 100644
index 0000000..56adbfd
--- /dev/null
+++ b/system/monitoring.nix
@@ -0,0 +1,33 @@
+{ pkgs, ... }:
+{
+  environment.systemPackages = with pkgs; [
+    prometheus-node-exporter
+    prometheus-systemd-exporter
+  ];
+
+  systemd.services."node-exporter" = {
+    enable = true;
+    unitConfig = {
+      Description = "Prometheus Node Exporter";
+      After = [ "network.target" ];
+    };
+    serviceConfig = {
+      ExecStart = "${pkgs.prometheus-node-exporter}/bin/node_exporter";
+    };
+    wantedBy = [ "multi-user.target" ];
+  };
+
+  systemd.services."systemd-exporter" = {
+    enable = true;
+    unitConfig = {
+      Description = "Prometheus Systemd Exporter";
+      After = [ "network.target" ];
+    };
+    serviceConfig = {
+      ExecStart = "${pkgs.prometheus-systemd-exporter}/bin/systemd_exporter";
+    };
+    wantedBy = [ "multi-user.target" ];
+  };
+
+  networking.firewall.allowedTCPPorts = [ 9100 9558 ];
+}