Added Prometheus Exporter to std config; Added Grafana;

2026-04-10 22:28:21 +02:00
parent 46fb7622e9
commit 40185d110a
5 changed files with 61 additions and 25 deletions
--- a/flake.nix
+++ b/flake.nix
@@ -120,19 +120,17 @@
          ];

          platformModules =
-            let
-              nixosBase = [
-                { nixpkgs.hostPlatform = system; }
-                ./nixos
-              ];
-            in
            if isDarwin then
              [
                ./darwin
                inputs.nix-homebrew.darwinModules.nix-homebrew
              ]
            else
-              nixosBase ++ (if isServer then [ ./nixos/server ] else [ ]);
+              [
+                { nixpkgs.hostPlatform = system; }
+                ./nixos
+              ];
+
        in
        systemFunc {
          inherit system;
--- a/hosts/cyper-node-1/configuration.nix
+++ b/hosts/cyper-node-1/configuration.nix
@@ -1,5 +1,8 @@
 {
-  imports = [ ./hardware-configuration.nix ];
+  imports = [
+    ./hardware-configuration.nix
+    ../../nixos/roles/monitoring.nix
+  ];

  networking = {
    useNetworkd = true;
--- a/nixos/default.nix
+++ b/nixos/default.nix
@@ -4,6 +4,7 @@
  lib,
  primaryUser,
  isServer,
+  isDarwin,
  ...
 }:
 {
@@ -82,10 +83,17 @@
    apparmor.enable = false;
  };

-  services.gnome = lib.mkIf (!isServer) {
+  services = {
+    prometheus.exporters.node = lib.mkIf (!isDarwin) {
+      enable = true;
+      port = 9002;
+    };
+
+    gnome = lib.mkIf (!isServer) {
      tinysparql.enable = true;
      localsearch.enable = true;
    };
+  };

  users.users.${primaryUser} = {
    home = "/home/${primaryUser}";
--- a/nixos/roles/monitoring.nix
+++ b/nixos/roles/monitoring.nix
@@ -0,0 +1,41 @@
+{ config, ... }:
+{
+  services = {
+    grafana = {
+      enable = true;
+      domain = "grafana.cyperpunk.de";
+      port = 2342;
+      addr = "127.0.0.1";
+    };
+
+    # nginx reverse proxy
+    nginx.virtualHosts.${config.services.grafana.domain} = {
+      locations."/" = {
+        proxyPass = "http://127.0.0.1:${toString config.services.grafana.port}";
+        proxyWebsockets = true;
+        extraConfig = ''
+          proxy_set_header Host ${config.services.grafana.domain};
+        '';
+      };
+    };
+
+    prometheus = {
+      enable = true;
+      port = 9001;
+      scrapeConfigs = [
+        {
+          job_name = config.networking.hostName;
+          static_configs = [
+            {
+              targets = [
+                "${config.networking.primaryIPAddress}:${toString config.services.prometheus.exporters.node.port}"
+              ];
+            }
+          ];
+        }
+      ];
+    };
+  };
+
+  networking.firewall.allowedTCPPorts = [ 80 ];
+}
--- a/nixos/server/default.nix
+++ b/nixos/server/default.nix
@@ -1,14 +0,0 @@
-{ ... }:
-{
-  services.nginx = {
-    enable = true;
-    virtualHosts.localhost = {
-      locations."/" = {
-        return = "200 '<html><body>It works</body></html>'";
-        extraConfig = ''
-          default_type text/html;
-        '';
-      };
-    };
-  };
-}