From df65b61652b15077aa105ede273e89da01ecbc6d Mon Sep 17 00:00:00 2001
From: Grant Slater <github@firefishy.com>
Date: Fri, 8 Aug 2025 02:38:53 +0100
Subject: [PATCH] vectortile: Add diagnostics X-TileRender response header

Fixes: https://github.com/openstreetmap/operations/issues/1271
---
 cookbooks/vectortile/templates/default/nginx.erb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cookbooks/vectortile/templates/default/nginx.erb b/cookbooks/vectortile/templates/default/nginx.erb
index 09b62964a..5b6499737 100644
--- a/cookbooks/vectortile/templates/default/nginx.erb
+++ b/cookbooks/vectortile/templates/default/nginx.erb
@@ -48,11 +48,15 @@ server {
         proxy_http_version 1.1;
         proxy_set_header Connection "";
         add_header Cache-Control "public,max-age=300,stale-while-revalidate=3600,stale-if-error=86400";
+        # Add diagnostics header to identify render server
+        add_header X-TileRender "<%= node.name %>" always;
     }
     location /demo/ {
         proxy_pass http://demo;
         proxy_http_version 1.1;
         proxy_set_header Connection "";
+        # Add diagnostics header to identify render server
+        add_header X-TileRender "<%= node.name %>" always;
     }
     root /srv/vector.openstreetmap.org/html;
 }
-- 
2.39.5