grafana: re-organize

services/grafana/intel-gpu-collector.nix

@@ -0,0 +1,38 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+let
+  textfileDir = "/var/lib/prometheus-node-exporter-textfiles";
+
+  intelGpuCollector = pkgs.writeShellApplication {
+    name = "intel-gpu-collector";
+    runtimeInputs = with pkgs; [
+      python3
+      intel-gpu-tools
+    ];
+    text = ''
+      exec python3 ${./intel-gpu-collector.py}
+    '';
+  };
+in
+lib.mkIf config.services.grafana.enable {
+  systemd.services.intel-gpu-collector = {
+    description = "Collect Intel GPU metrics for Prometheus";
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = lib.getExe intelGpuCollector;
+    };
+    environment.TEXTFILE = "${textfileDir}/intel-gpu.prom";
+  };
+
+  systemd.timers.intel-gpu-collector = {
+    wantedBy = [ "timers.target" ];
+    timerConfig = {
+      OnCalendar = "*:*:0/30";
+      RandomizedDelaySec = "10s";
+    };
+  };
+}