modules/monitoring-3: expose systemd units

modules/monitoring/default.nix

@@ -58,6 +58,9 @@ in
       #listenAddress = "${monitoring-network-base}${cfg.id}";
       openFirewall = true;
       firewallFilter = "-i wg-monitoring -p tcp -m tcp --dport 9100";
+      enabledCollectors = [
+       "systemd"
+      ];
     };
 
     systemd.services."prometheus-node-exporter".serviceConfig.RestrictAddressFamilies = [ "AF_NETLINK" ];