Monitor prometheus metrics

common/vm/default.nix

@@ -0,0 +1,6 @@
+{ ... }:
+{
+  imports = [
+    ./qemu-guest.nix
+  ];
+}

common/vm/qemu-guest.nix

@@ -0,0 +1,4 @@
+{ ... }:
+{
+  services.qemuGuest.enable = true;
+}

hosts/ca/configuration.nix

@@ -8,6 +8,7 @@
     ../template/hardware-configuration.nix
 
     ../../system
+    ../../common/vm
   ];
 
   nixpkgs.config.allowUnfree = true;

hosts/ha1/configuration.nix

@@ -1,12 +1,17 @@
-{ config, lib, pkgs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 
 {
-  imports =
-    [
-      ../template/hardware-configuration.nix
+  imports = [
+    ../template/hardware-configuration.nix
 
-      ../../system
-    ];
+    ../../system
+    ../../common/vm
+  ];
 
   nixpkgs.config.allowUnfree = true;
   # Use the systemd-boot EFI boot loader.
@@ -39,7 +44,10 @@
   };
   time.timeZone = "Europe/Oslo";
 
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
   nix.settings.tarball-ttl = 0;
   environment.systemPackages = with pkgs; [
     vim
@@ -67,4 +75,3 @@
 
   system.stateVersion = "23.11"; # Did you read the comment?
 }
-

hosts/http-proxy/configuration.nix

@@ -8,6 +8,7 @@
     ../template/hardware-configuration.nix
 
     ../../system
+    ../../common/vm
   ];
 
   nixpkgs.config.allowUnfree = true;

hosts/monitoring01/configuration.nix

@@ -8,6 +8,7 @@
     ../template/hardware-configuration.nix
 
     ../../system
+    ../../common/vm
   ];
 
   nixpkgs.config.allowUnfree = true;
@@ -52,6 +53,8 @@
     git
   ];
 
+  services.qemuGuest.enable = true;
+
   # Open ports in the firewall.
   # networking.firewall.allowedTCPPorts = [ ... ];
   # networking.firewall.allowedUDPPorts = [ ... ];

hosts/ns1/configuration.nix

@@ -1,14 +1,19 @@
-{ config, lib, pkgs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 
 {
-  imports =
-    [
-      ../template/hardware-configuration.nix
+  imports = [
+    ../template/hardware-configuration.nix
 
-      ../../system
-      ../../services/ns/master-authorative.nix
-      ../../services/ns/resolver.nix
-    ];
+    ../../system
+    ../../services/ns/master-authorative.nix
+    ../../services/ns/resolver.nix
+    ../../common/vm
+  ];
 
   nixpkgs.config.allowUnfree = true;
   # Use the systemd-boot EFI boot loader.
@@ -38,7 +43,10 @@
   };
   time.timeZone = "Europe/Oslo";
 
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
   nix.settings.tarball-ttl = 0;
   environment.systemPackages = with pkgs; [
     vim
@@ -54,4 +62,3 @@
 
   system.stateVersion = "23.11"; # Did you read the comment?
 }
-

hosts/ns2/configuration.nix

@@ -1,14 +1,19 @@
-{ config, lib, pkgs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 
 {
-  imports =
-    [
-      ../template/hardware-configuration.nix
+  imports = [
+    ../template/hardware-configuration.nix
 
-      ../../system
-      ../../services/ns/secondary-authorative.nix
-      ../../services/ns/resolver.nix
-    ];
+    ../../system
+    ../../services/ns/secondary-authorative.nix
+    ../../services/ns/resolver.nix
+    ../../common/vm
+  ];
 
   nixpkgs.config.allowUnfree = true;
   # Use the systemd-boot EFI boot loader.
@@ -38,7 +43,10 @@
   };
   time.timeZone = "Europe/Oslo";
 
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
   environment.systemPackages = with pkgs; [
     vim
     wget
@@ -53,4 +61,3 @@
 
   system.stateVersion = "23.11"; # Did you read the comment?
 }
-

services/monitoring/prometheus.nix

@@ -36,6 +36,9 @@
         ];
       }
     ];
+    globalConfig = {
+      scrape_interval = "15s";
+    };
     rules = [
       ''
         groups:
@@ -124,6 +127,14 @@
           }
         ];
       }
+      {
+        job_name = "prometheus";
+        static_configs = [
+          {
+            targets = [ "localhost:9090" ];
+          }
+        ];
+      }
       {
         job_name = "pve-exporter";
         static_configs = [

system/monitoring/metrics.nix

@@ -5,6 +5,8 @@
     enabledCollectors = [
       "systemd"
       "logind"
+      "cgroups"
+      "processes"
     ];
   };
 }