service/grafana: add monitoring

modules/services/grafana/default.nix

@@ -47,7 +47,32 @@ in
         };
       };
 
-      provision.enable = true;
+      provision = {
+        enable = true;
+        dashboards.settings.providers = [
+          {
+            name = "Grafana";
+            options.path = pkgs.grafana-dashboards.grafana;
+            disableDeletion = true;
+          }
+        ];
+      };
+    };
+
+    services.prometheus = {
+      scrapeConfigs = [
+        {
+          job_name = "grafana";
+          static_configs = [
+            {
+              targets = [ "127.0.0.1:${toString cfg.port}" ];
+              labels = {
+                instance = config.networking.hostName;
+              };
+            }
+          ];
+        }
+      ];
     };
 
     my.services.nginx.virtualHosts = [

pkgs/grafana-dashboards/default.nix

@@ -63,4 +63,11 @@ in
   }).overrideAttrs (self: super: {
     src = ./gitea.json; # sadly not yet updated to latest grafana
   });
+  grafana = (buildGrafanaDashboard {
+    id = 3590;
+    pname = "grafana";
+    version = "3";
+  }).overrideAttrs (self: super: {
+    src = ./grafana.json; # sadly only imported dashboards work
+  });
 })