Wrong format..

nix-system-configs/modules/system/gramethus.nix

@@ -177,51 +177,42 @@ in {
 
     environment.etc."alloy/config.alloy" = {
       text = ''
-        server:
-          http_listen_port: 28183
-          grpc_listen_port: 0
+        loki.relabel "journal" {
+          rule {
+            source_labels = ["__journal__systemd_unit"]
+            target_label  = "unit"
+          }
+        }
 
-        logs:
-          # keep positions persistent on disk (don't use /tmp in production)
-          positions:
-            filename: /var/lib/grafana-agent/positions.yaml
+        loki.write "local" {
+          endpoint {
+            url = "http://127.0.0.1:3100/loki/api/v1/push"
+          }
+          external_labels = {}
+        }
 
-          configs:
-            - name: journal
-              journal:
-                # keep similar rotation / lookback to your promtail config
-                max_age: 12h
-                labels:
-                  job: systemd-journal
-                  host: chrysalis
+        loki.source.journal "journal" {
+          max_age = "12h0m0s"
 
-              clients:
-                - url: http://127.0.0.1:3100/loki/api/v1/push
+          forward_to = [loki.write.local.receiver]
 
-              relabel_configs:
-                - source_labels: ["__journal__systemd_unit"]
-                  target_label: "unit"
+          labels = {
+            job  = "systemd-journal"
+            host = "chrysalis"
+          }
+
+          relabel_rules = loki.relabel.journal.rules
+
+          legacy_position {
+            file = "/var/lib/grafana-agent/positions.yaml"
+            name = "journal"
+          }
+        }
       '';
       group = "root";
       mode = "0644";
     };
 
-    # Add a simple systemd service to run the Grafana Agent (Alloy)
-    systemd.services.grafana-agent = {
-      description = "Grafana Alloy";
-      wantedBy = ["multi-user.target"];
-
-      serviceConfig = {
-        # The grafana-agent binary provided by nixpkgs
-        ExecStart = ''
-          ${pkgs.grafana-alloy}/bin/alloy run
-        '';
-
-        Restart = "on-failure";
-        RestartSec = "5s";
-      };
-    };
-
     # or alternatively
     #configFile = ./loki-config.yaml;
     # };