monitoring: add backup scheduling

flake.nix

@@ -74,6 +74,17 @@
                   (prevAttrs: {
                     inherit (pkgs) lib;
                   });
+              prometheus-systemd-exporter = prev.prometheus-systemd-exporter.overrideAttrs {
+                src = pkgs.fetchFromGitHub {
+                  owner = "ibizaman";
+                  repo = prev.prometheus-systemd-exporter.pname;
+                  # rev = "v${prev.prometheus-systemd-exporter.version}";
+                  rev = "next_timer";
+                  sha256 = "sha256-jzkh/616tsJbNxFtZ0xbdBQc16TMIYr9QOkPaeQw8xA=";
+                };
+
+                vendorHash = "sha256-4hsQ1417jLNOAqGkfCkzrmEtYR4YLLW2j0CiJtPg6GI=";
+              };
             })
           ];
         };

modules/blocks/monitoring.nix

@@ -293,7 +293,6 @@ in
         alerting.rules.settings =
           let
             rules = builtins.fromJSON (builtins.readFile ./monitoring/rules.json);
-            ruleIds = map (r: r.uid) rules;
           in
           {
             apiVersion = 1;
@@ -518,6 +517,15 @@ in
             }
           ];
         }
+        {
+          job_name = "systemd";
+          static_configs = [
+            {
+              targets = [ "127.0.0.1:${toString config.services.prometheus.exporters.systemd.port}" ];
+              labels = commonLabels;
+            }
+          ];
+        }
       ]
       ++ (lib.lists.optional config.services.nginx.enable {
         job_name = "nginx";
@@ -593,7 +601,6 @@ in
           "drm"
           "ethtool"
           "logind"
-          "systemd"
           "wifi"
         ];
         port = 9112;
@@ -625,6 +632,11 @@ in
         port = 9211;
         listenAddress = "127.0.0.1";
       };
+      services.prometheus.exporters.systemd = {
+        enable = true;
+        port = 9116;
+        listenAddress = "127.0.0.1";
+      };
       services.nginx.statusPage = lib.mkDefault config.services.nginx.enable;
       services.netdata = {
         enable = true;