Setup basic telegraf reporting

machines/kharbranth/default.nix

@@ -46,4 +46,6 @@
     };
     work.enable = true;
   };
+
+  services.telegraf.extraConfig.inputs.disk.mount_points = [ "/" "/boot" ];
 }

machines/kholinar/default.nix

@@ -3,7 +3,6 @@
 {
   imports = [ ./hardware.nix ];
 
-  config = {
   networking.hostId = "3cc1a4b2";
 
   time.timeZone = "Europe/Brussels";
@@ -50,5 +49,6 @@
     # It's a pandemic.
     work.enable = true;
   };
-  };
+
+  services.telegraf.extraConfig.inputs.disk.mount_points = [ "/" "/boot" ];
 }

machines/lasting-integrity/default.nix

@@ -112,4 +112,5 @@
     };
   };
   programs.msmtp.enable = false;
+  services.telegraf.extraConfig.inputs.disk.mount_points = [ "/" "/boot/ESP0" "/boot/ESP1" "/srv/data" ];
 }

machines/urithiru/default.nix

@@ -55,4 +55,6 @@
       };
     };
   };
+
+  services.telegraf.extraConfig.inputs.disk.mount_points = [ "/" "/boot/ESP0" "/boot/ESP1" "/srv/data" ];
 }

modules/base/default.nix

@@ -10,6 +10,7 @@
     ./smartd
     ./ssh
     ./sshd
+    ./telegraf
     ./tmux
     ./zfs
     ./zsh

modules/base/telegraf/default.nix

@@ -0,0 +1,45 @@
+{ config, lib, pkgs, ... }:
+
+{
+  services.telegraf = {
+    enable = true;
+    extraConfig = {
+      agent = {
+        interval = "10s";
+        round_interval = true;
+        metric_batch_size = 1000;
+        metric_buffer_limit = 10000;
+        collection_jitter = "0s";
+        flush_interval = "10s";
+        flush_jitter = "0s";
+        precision = "0s";
+        omit_hostname = false;
+      };
+      outputs.influxdb_v2 = {
+        urls = [ "https://stats.chvp.be:8086" ];
+        token = "$TOKEN";
+        organization = "default";
+        bucket = "default";
+      };
+      inputs = {
+        cpu = {
+          percpu = true;
+          totalcpu = true;
+          collect_cpu_time = false;
+          report_active = false;
+        };
+        diskio = { };
+        kernel = { };
+        mem = { };
+        processes = { };
+        swap = { };
+        system = { };
+      };
+    };
+    environmentFiles = [ config.age.secrets."passwords/services/telegraf-env".path ];
+  };
+  age.secrets."passwords/services/telegraf-env" = {
+    file = ../../../secrets/passwords/services/telegraf-env.age;
+    owner = "telegraf";
+  };
+}

secrets.nix

@@ -57,6 +57,7 @@ in
   "secrets/passwords/services/grafana/smtp.age".publicKeys = [ lasting-integrity ] ++ users;
   "secrets/passwords/services/grafana/admin-password.age".publicKeys = [ lasting-integrity ] ++ users;
   "secrets/passwords/services/grafana/secret-key.age".publicKeys = [ lasting-integrity ] ++ users;
+  "secrets/passwords/services/telegraf-env.age".publicKeys = hosts ++ users;
 
   "secrets/passwords/services/nextcloud-admin.age".publicKeys = [ lasting-integrity ] ++ users;