system/monitoring.nix

@@ -0,0 +1,37 @@
+{ pkgs, ... }:
+{
+  environment.systemPackages = with pkgs; [
+    prometheus-node-exporter
+    prometheus-systemd-exporter
+  ];
+
+  systemd.services."node-exporter" = {
+    enable = true;
+    unitConfig = {
+      Description = "Prometheus Node Exporter";
+      After = [ "network.target" ];
+    };
+    serviceConfig = {
+      ExecStart = "${pkgs.prometheus-node-exporter}/bin/node_exporter";
+    };
+    wantedBy = [ "multi-user.target" ];
+  };
+
+  systemd.services."systemd-exporter" = {
+    enable = true;
+    unitConfig = {
+      Description = "Prometheus Systemd Exporter";
+      After = [ "network.target" ];
+    };
+    serviceConfig = {
+      ExecStart = "${pkgs.prometheus-systemd-exporter}/bin/systemd_exporter";
+    };
+    wantedBy = [ "multi-user.target" ];
+  };
+
+  networking.firewall.allowedTCPPorts = [
+    9100
+    9558
+    8989
+  ];
+}

system/monitoring/default.nix

@@ -1,7 +0,0 @@
-{ ... }:
-{
-  imports = [
-    ./metrics.nix
-    ./logs.nix
-  ];
-}

system/monitoring/logs.nix

@@ -1,39 +0,0 @@
-{ ... }:
-{
-  services.promtail = {
-    enable = true;
-    configuration = {
-      server = {
-        http_listen_address = "0.0.0.0";
-        http_listen_port = 9099;
-        grpc_listen_address = "0.0.0.0";
-        grpc_listen_port = 9098;
-      };
-
-      clients = [
-        {
-          url = "http://monitoring01.home.2rjus.net:3100/loki/api/v1/push";
-        }
-      ];
-
-      scrape_configs = [
-        {
-          job_name = "journal";
-          journal = {
-            json = true;
-          };
-          relabel_configs = [
-            {
-              source_labels = [ "__journal__systemd_unit" ];
-              target_label = "systemd_unit";
-            }
-            {
-              source_labels = [ "__journal__hostname" ];
-              target_label = "host";
-            }
-          ];
-        }
-      ];
-    };
-  };
-}

system/monitoring/metrics.nix

@@ -1,11 +0,0 @@
-{ ... }:
-{
-  services.prometheus.exporters.node = {
-    enable = true;
-    openFirewall = true;
-    enabledCollectors = [
-      "systemd"
-      "logind"
-    ];
-  };
-}