Upgraded snowfall lib

modules/nixos/services/grafana/default.nix

@@ -0,0 +1,74 @@
+{
+  options,
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.aa.services.grafana;
+  server_settings = config.services.grafana.settings.server;
+in {
+  options.aa.services.grafana = with types; {
+    enable = mkEnableOption "grafana";
+    acmeCertName = mkOption {
+      type = str;
+      default = "";
+      description = ''
+        If set to a non-empty string, forces SSL with the supplied acme
+        certificate.
+      '';
+    };
+  };
+  config = mkIf cfg.enable {
+    services.grafana = {
+      enable = true;
+      settings.server = {
+        domain = "grafana.kilonull.com";
+        http_port = 2342;
+        http_addr = "0.0.0.0";
+      };
+
+      provision = {
+        enable = true;
+        datasources = {
+          # This assumes prometheus, loki, and grafana are all running on the
+          # same host.
+          settings.datasources = [
+            {
+              name = "Prometheus";
+              type = "prometheus";
+              access = "proxy";
+              url = "http://127.0.0.1:${toString config.services.prometheus.port}";
+            }
+            {
+              name = "Loki";
+              type = "loki";
+              access = "proxy";
+              url = "http://127.0.0.1:${toString config.services.loki.configuration.server.http_listen_port}";
+            }
+          ];
+        };
+      };
+    };
+
+    services.nginx = {
+      enable = true;
+      virtualHosts ."${server_settings.domain}" =
+        {
+          locations."/" = {
+            proxyPass = "http://${server_settings.http_addr}:${toString server_settings.http_port}";
+            proxyWebsockets = true;
+          };
+        }
+        // lib.optionalAttrs (cfg.acmeCertName != "") {
+          forceSSL = true;
+          useACMEHost = cfg.acmeCertName;
+        };
+    };
+
+    networking.firewall = {
+      allowedTCPPorts = [80 443];
+    };
+  };
+}