Promtail is EOL

Recomended migtration to grafana-alloy (https://grafana.com/docs/alloy/latest/set-up/migrate/from-promtail/) or fluent-bit (https://docs.fluentbit.io/manual/data-pipeline/outputs/loki)
I chose alloy because of the compatability.
This needs to be reworked to a native implementation later

machines/modules/malobeo/metrics.nix

@@ -41,17 +41,22 @@ in
       };
     };
 
-    services.promtail = {
+    services.alloy = {
       enable = cfg.enablePromtail;
-      configFile = import ./promtail_config.nix { 
+      extraFlags = ["--config.format=promtail"]; #TODO please change this to native alloy config later
+      configPath = import ./promtail_config.nix { 
         lokiAddress = cfg.lokiHost;
         logNginx = cfg.logNginx;
         config = config;
         pkgs = pkgs;
       };
     };
-
-    users.users.promtail.extraGroups = [ "systemd-journal" ] ++ (lib.optionals cfg.logNginx [ "nginx" ]) ;
+    users.groups.promtail = {};
+    users.users.promtail = {
+      isNormalUser = true;
+      group = "promtail";
+      extraGroups = [ "systemd-journal" ] ++ (lib.optionals cfg.logNginx [ "nginx" ]) ;
+    };
 
   };
 }