From 19884b7b5d5d384ceb29012bbbc0ecfad902c961 Mon Sep 17 00:00:00 2001
From: Leopoldadmin <leopold.hammerschmidt@media-on.de>
Date: Fri, 26 Jun 2026 11:01:03 +0200
Subject: [PATCH] fix: use Docker resolver for backend DNS in nginx.conf

---
 frontend/nginx.conf | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/frontend/nginx.conf b/frontend/nginx.conf
index 8e56511..9ed4134 100644
--- a/frontend/nginx.conf
+++ b/frontend/nginx.conf
@@ -2,7 +2,23 @@ server {
   listen 80;
   root /usr/share/nginx/html;
   index index.html;
+
+  resolver 127.0.0.11 valid=30s;
+
   location / { try_files $uri $uri/ /index.html; }
-  location /api/ { proxy_pass http://backend:3001; }
-  location /ws { proxy_pass http://backend:3001; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; }
+
+  location /api/ {
+    set $backend http://backend:3001;
+    proxy_pass $backend;
+    proxy_set_header Host $host;
+    proxy_set_header X-Real-IP $remote_addr;
+  }
+
+  location /ws {
+    set $backend http://backend:3001;
+    proxy_pass $backend;
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection "upgrade";
+  }
 }