From 3ec6671a30bad67df9e30ba5d3f126c6d53828f7 Mon Sep 17 00:00:00 2001
From: ctsk <9384305+ctsk@users.noreply.github.com>
Date: Sun, 1 Oct 2023 12:26:38 +0200
Subject: [PATCH] [gitea] Expose metrics to prometheus

---
 lib/modules/gitea/default.nix | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/lib/modules/gitea/default.nix b/lib/modules/gitea/default.nix
index d214648..949ac0c 100644
--- a/lib/modules/gitea/default.nix
+++ b/lib/modules/gitea/default.nix
@@ -1,4 +1,4 @@
-{config, pkgs, ...}:
+{config, pkgs, lib, ...}:
 
 let
 
@@ -33,15 +33,29 @@ in {
         REPO_INDEXER_ENABLED = true;        
         REPO_INDEXER_EXCLUDE = "**.pdf, **.png, **.jpeg, **.jpm, **.svg, **.webm";
       };
+      metrics.ENABLED = true;
     };
   };
 
   services.nginx.virtualHosts."${domain}" = {
     forceSSL = true;
     enableACME = true;
+    locations."/metrics".extraConfig = ''
+    allow 127.0.0.1;
+    deny all;
+    '';
     locations."/".proxyPass = "http://127.0.0.1:${toString port}";
   };
 
+  services.prometheus.scrapeConfigs = lib.mkIf config.services.prometheus.enable [
+    {
+      job_name = "gitea";
+      static_configs = [{
+        targets = [ "127.0.0.1:${toString port}" ];
+      }];
+    }
+  ];
+
   systemd.tmpfiles.rules = [
     ''L+ ${cfg.stateDir}/custom/public/img/logo.svg - - - - ${pkgs.logo.svg}''
     ''L+ ${cfg.stateDir}/custom/public/img/logo.png - - - - ${pkgs.logo.png."512x512"}''