From 03d75bcc7104b216c46789386276bc7da81d300a Mon Sep 17 00:00:00 2001
From: Ingolf Wagner <contact@ingolf-wagner.de>
Date: Fri, 24 Feb 2023 03:51:12 +0100
Subject: [PATCH] improve metrics

---
 nixos/machines/pepe/configuration.nix |  2 +-
 nixos/machines/pepe/syncthing.nix     |  4 ++--
 nixos/machines/pepe/telegraf.nix      |  4 ++++
 nixos/machines/robi/configuration.nix |  1 +
 nixos/machines/robi/prometheus.nix    | 14 +++++++++++++-
 nixos/machines/robi/telegraf.nix      | 17 +++++++++++++++++
 6 files changed, 38 insertions(+), 4 deletions(-)
 create mode 100644 nixos/machines/robi/telegraf.nix

diff --git a/nixos/machines/pepe/configuration.nix b/nixos/machines/pepe/configuration.nix
index e3b83e9..2e87b93 100644
--- a/nixos/machines/pepe/configuration.nix
+++ b/nixos/machines/pepe/configuration.nix
@@ -23,13 +23,13 @@
     #./jellyfin.nix
     ./wireguard.nix
     #./tts.nix
-    ./telegraf.nix
 
     # logging
     ./loki.nix
     ./loki-promtail.nix
     ./prometheus.nix
     ./grafana.nix
+    ./telegraf.nix
 
   ];
 
diff --git a/nixos/machines/pepe/syncthing.nix b/nixos/machines/pepe/syncthing.nix
index c78d936..6903f64 100644
--- a/nixos/machines/pepe/syncthing.nix
+++ b/nixos/machines/pepe/syncthing.nix
@@ -68,12 +68,12 @@
       books = {
         enable = true;
         path = "/media/syncthing/books";
-        rescanInterval = 8 * 3600;
+        rescanInterval = 40 * 24 * 3600;
       };
       lost-fotos = {
         enable = true;
         path = "/media/syncthing/lost-fotos.ct";
-        rescanInterval = 8 * 3600;
+        rescanInterval = 5 * 31 * 24 * 3600;
       };
       movies = {
         enable = true;
diff --git a/nixos/machines/pepe/telegraf.nix b/nixos/machines/pepe/telegraf.nix
index 1c404e2..d369fe3 100644
--- a/nixos/machines/pepe/telegraf.nix
+++ b/nixos/machines/pepe/telegraf.nix
@@ -24,6 +24,10 @@ in
           interval = "30m"; # agent.interval = "10s" is default
         }];
         http_response = [{ inherit urls; }];
+        processes = { };
+        systemd_units = { };
+        internet_speed.interval = "50m";
+        nginx.urls = [ "http://localhost/nginx_status" ];
       };
     };
   };
diff --git a/nixos/machines/robi/configuration.nix b/nixos/machines/robi/configuration.nix
index 5a60707..570befe 100644
--- a/nixos/machines/robi/configuration.nix
+++ b/nixos/machines/robi/configuration.nix
@@ -52,6 +52,7 @@
     ./loki-promtail.nix
     ./prometheus.nix
     ./grafana.nix
+    ./telegraf.nix
 
   ];
 
diff --git a/nixos/machines/robi/prometheus.nix b/nixos/machines/robi/prometheus.nix
index 1d14ee4..2fa4218 100644
--- a/nixos/machines/robi/prometheus.nix
+++ b/nixos/machines/robi/prometheus.nix
@@ -49,7 +49,19 @@
           targets = [ "localhost:${toString config.services.prometheus.exporters.node.port}" ];
           labels = {
             service = "node-exporter";
-            server = "pepe";
+            server = "robi";
+          };
+        }];
+      }
+      {
+        # see https://www.home-assistant.io/integrations/prometheus/
+        job_name = "telgraf";
+        metrics_path = "/metrics";
+        static_configs = [{
+          targets = [ "localhost:9273" ];
+          labels = {
+            service = "telegraf";
+            server = "robi";
           };
         }];
       }
diff --git a/nixos/machines/robi/telegraf.nix b/nixos/machines/robi/telegraf.nix
new file mode 100644
index 0000000..326e069
--- /dev/null
+++ b/nixos/machines/robi/telegraf.nix
@@ -0,0 +1,17 @@
+{
+  services.telegraf = {
+    enable = true;
+    extraConfig = {
+      outputs.prometheus_client = {
+        listen = ":9273";
+        metric_version = 2;
+      };
+      # https://github.com/influxdata/telegraf/tree/master/plugins/inputs < all them plugins
+      inputs = {
+        processes = { };
+        systemd_units = { };
+        nginx.urls = [ "http://localhost/nginx_status" ];
+      };
+    };
+  };
+}