chore: update env variable

default.conf

@@ -1,13 +1,15 @@
+# ----------------------------------------------------------------------------
+# NOTE: this file is mounted into the nginx container as a TEMPLATE.
+# scripts/nginx-entrypoint.sh (mounted as /docker-entrypoint.sh) substitutes
+# the single ${RUSTFS_ENDPOINT} placeholder at container start. The rendered
+# output is written to /etc/nginx/conf.d/default.conf and execs nginx.
+# ----------------------------------------------------------------------------
+
 map $http_upgrade $connection_upgrade {
     default upgrade;
     ''      close;
 }
 
-upstream rustfs_backend {
-    server 8.153.151.51:9000;
-    keepalive 64;
-}
-
 server {
     listen 80;
     server_name localhost;
@@ -16,6 +18,9 @@ server {
     # 指定 Docker 内置 DNS 解析器，并设置 30 秒缓存
     resolver 127.0.0.11 valid=30s ipv6=off;
 
+    # RustFS upstream — full URL passed through to proxy_pass below.
+    set $rustfs_backend "${RUSTFS_ENDPOINT}";
+
     location / {
         root   /usr/share/nginx/html;       # 前端静态文件存放在容器中的路径
         index  index.html index.htm;
@@ -48,9 +53,8 @@ server {
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
 
-        # 转发至 RustFS
-        # 注意：如果 RustFS 内部接口也是 /storage/...，请把末尾的 / 去掉
-        proxy_pass http://rustfs_backend/;
+        # 转发至 RustFS（$rustfs_endpoint 来自 set 指令；尾斜杠保留 location /storage/ 前缀剥离语义）
+        proxy_pass $rustfs_backend/;
 
         # HTTP/1.1 长连接支持
         proxy_http_version 1.1;