From 0055de1c262154ffb3ce6288737eef2f20e20181 Mon Sep 17 00:00:00 2001
From: Simon Bruder <simon@sbruder.de>
Date: Sat, 4 Nov 2023 13:57:59 +0100
Subject: [PATCH] shinobu/snmp-exporter: Init

---
 machines/renge/services/prometheus.nix      | 24 +++++++++++++++++++++
 machines/shinobu/configuration.nix          |  1 +
 machines/shinobu/services/snmp-exporter.nix |  9 ++++++++
 3 files changed, 34 insertions(+)
 create mode 100644 machines/shinobu/services/snmp-exporter.nix

diff --git a/machines/renge/services/prometheus.nix b/machines/renge/services/prometheus.nix
index 7f4dcc6..6f4db50 100644
--- a/machines/renge/services/prometheus.nix
+++ b/machines/renge/services/prometheus.nix
@@ -135,6 +135,30 @@ in
           regex = "(.*)\\.vpn\\.sbruder\\.de:9433";
         };
       }
+      {
+        job_name = "snmp";
+        metrics_path = "/snmp";
+        params = {
+          module = [ "if_mib" ];
+        };
+        static_configs = mkStaticTargets [
+          "karibik.management.shinonome-lab.de"
+        ];
+        relabel_configs = [
+          {
+            source_labels = lib.singleton "__address__";
+            target_label = "__param_target";
+          }
+          {
+            source_labels = lib.singleton "__param_target";
+            target_label = "instance";
+          }
+          {
+            target_label = "__address__";
+            replacement = "shinobu.vpn.sbruder.de:9116";
+          }
+        ];
+      }
     ];
 
     rules =
diff --git a/machines/shinobu/configuration.nix b/machines/shinobu/configuration.nix
index 558c67b..fd925a9 100644
--- a/machines/shinobu/configuration.nix
+++ b/machines/shinobu/configuration.nix
@@ -6,6 +6,7 @@
 
     ./services/co2_exporter.nix
     ./services/router
+    ./services/snmp-exporter.nix
   ];
 
   sbruder = {
diff --git a/machines/shinobu/services/snmp-exporter.nix b/machines/shinobu/services/snmp-exporter.nix
new file mode 100644
index 0000000..24a77c6
--- /dev/null
+++ b/machines/shinobu/services/snmp-exporter.nix
@@ -0,0 +1,9 @@
+{ config, pkgs, ... }:
+
+{
+  services.prometheus.exporters.snmp = {
+    enable = true;
+    listenAddress = config.sbruder.wireguard.home.address;
+    configurationPath = "${pkgs.prometheus-snmp-exporter.src}/snmp.yml";
+  };
+}