add grafana and prometheus

hosts/nuc/default.nix

@@ -7,7 +7,8 @@
       # ./modules/adguard
       ./modules/networks
       # ./modules/backup
-      # ./modules/hydra
+      ./modules/grafana
+      ./modules/prometheus
       ./modules/matrix
       ./modules/nextcloud
       ./modules/seafile

hosts/nuc/modules/backup/default.nix

@@ -25,13 +25,10 @@
       ];
       encryption_passcommand = "${pkgs.coreutils}/bin/cat ${config.sops.secrets."borg/passphrase".path}";
       compression = "lz4";
-      retention = {
-        keep_daily = 7;
-        keep_weekly = 4;
-        keep_monthly = 12;
-        keep_yearly = 3;
-
-      };
+      keep_daily = 7;
+      keep_weekly = 4;
+      keep_monthly = 12;
+      keep_yearly = 3;
     };
   };
 }

hosts/nuc/modules/grafana/default.nix

@@ -0,0 +1,44 @@
+{ config, ... }:
+let
+  domain = "monitoring.${config.networking.domain}";
+in
+{
+  services.grafana = {
+    enable = true;
+    settings = {
+      server = {
+        inherit domain;
+        http_addr = "127.0.0.1";
+        http_port = 3000;
+      };
+      database = {
+        type = "postgres";
+        user = "grafana";
+        host = "/run/postgresql";
+      };
+    };
+  };
+
+
+  services.postgresql = {
+    enable = true;
+    ensureUsers = [
+      {
+        name = "grafana";
+        ensurePermissions = {
+          "DATABASE grafana" = "ALL PRIVILEGES";
+        };
+      }
+    ];
+    ensureDatabases = [ "grafana" ];
+  };
+
+  services.nginx.virtualHosts."${domain}" = {
+    addSSL = true;
+    enableACME = true;
+    locations."/" = {
+      proxyPass = "http://${toString config.services.grafana.settings.server.http_addr}:${toString config.services.grafana.settings.server.http_port}/";
+      proxyWebsockets = true;
+    };
+  };
+}

hosts/nuc/modules/prometheus/default.nix

@@ -0,0 +1,35 @@
+{ config, ... }:
+let
+  exportersConfig = config.services.prometheus.exporters;
+in
+{
+  services.prometheus = {
+    enable = true;
+    exporters = {
+      node = {
+        enable = true;
+        enabledCollectors = [ "systemd" ];
+      };
+      postgres.enable = true;
+    };
+    scrapeConfigs = [
+      {
+        job_name = "node";
+        static_configs = [
+          {
+            targets = [ "127.0.0.1:${toString exportersConfig.node.port}" ];
+          }
+        ];
+      }
+      {
+        job_name = "postgres";
+        static_configs = [
+          {
+            targets = [ "127.0.0.1:${toString exportersConfig.postgres.port}" ];
+          }
+        ];
+      }
+    ];
+
+  };
+}

hosts/nuc/modules/uptime-kuma/default.nix

@@ -1,6 +1,6 @@
 { config, ... }:
 let
-  domain = "monitoring.${config.networking.domain}";
+  domain = "uptime.${config.networking.domain}";
 in
 {
   services.uptime-kuma = {