update

nginx-inner.conf

@@ -1,4 +1,4 @@
-server {
+server {
     listen 8088;
     server_name localhost;
 
@@ -15,13 +15,16 @@ server {
     # 防止大文件上传被缓冲卡死
     proxy_request_buffering off;
     proxy_buffering off;
+    # Docker DNS resolver to enable runtime upstream resolution, preventing host not found at startup
+    resolver 127.0.0.11 valid=10s;
 
     # ========== 内网环境特有配置 ==========
 
     # 如果 inner 环境的后端服务名不同，比如叫 besure-server-inner
     # 就把下面的 proxy_pass 改成对应的服务名或IP
     location /admin-api-inner/ {
-        proxy_pass http://besure-server-inner:48081;  # 👈 这里改！
+        set $upstream_besure http://besure-server-inner:48081;
+        proxy_pass $upstream_besure;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;