service/webserver: add dashboard

modules/services/webserver/default.nix

@@ -171,6 +171,16 @@ in
           ];
         }
       ];
+
+      grafana.provision = {
+        dashboards.settings.providers = [
+          {
+            name = "Caddy";
+            options.path = pkgs.grafana-dashboards.caddy;
+            disableDeletion = true;
+          }
+        ];
+      };
     };
 
     networking.firewall.allowedTCPPorts = [

pkgs/grafana-dashboards/default.nix

@@ -172,5 +172,16 @@ lib.makeScope pkgs.newScope (
       version = "1";
       hash = "sha256-foc00LtcBTXOzvwyddJO0QJkCP82bUXa5iMuQmHqKcg=";
     };
+
+    caddy =
+      (buildGrafanaDashboard {
+        id = 20802;
+        pname = "caddy-monitoring";
+        version = "1";
+        hash = "sha256-vSt63PakGp5NzKFjbU5Yh0nDbKET5QRWp5nusM76/O4=";
+      }).overrideAttrs
+        (_: {
+          src = ./caddy.json; # sadly only imported dashboards work
+        });
   }
 )