feat(focus): add grafana dashboard

spec/focus/grafana.nix

@@ -0,0 +1,36 @@
+{ config
+, ... }: {
+  services.grafana = {
+    enable = true;
+    dataDir = "/nix/persist/service/grafana";
+    settings = {
+      server = {
+        http_addr = "127.0.0.1";
+        http_port = 3000;
+        domain = "sf.514fpv.io";
+        root_url = "https://sf.514fpv.io:8086/dash";
+        serve_from_sub_path = true;
+      };
+    };
+  };
+
+  services.prometheus = {
+    enable = true;
+    port = 9001;
+    exporters = {
+      node = {
+        enable = true;
+        enabledCollectors = [ "systemd" ];
+        port = 9002;
+      };
+    };
+  };
+
+  services.nginx.virtualHosts."sf.514fpv.io".locations."/dash/" = {
+    proxyPass = "http://${toString config.services.grafana.settings.server.http_addr}:${toString config.services.grafana.settings.server.http_port}";
+    proxyWebsockets = true;
+    recommendedProxySettings = true;
+  };
+
+  global.fs.zfs.mountpoints."/nix/persist/service/grafana" = "service/grafana";
+}

spec/focus/nginx.nix

@@ -17,6 +17,14 @@
         useACMEHost = ".sf.514fpv.io";
         extraConfig = "return 444;";
       };
+
+      "sf.514fpv.io" = {
+        addSSL = true;
+        useACMEHost = "sf.514fpv.io";
+        locations."/" = {
+          return = "307 https://sf.514fpv.io:8086/dash/";
+        };
+      };
     };
   };