fix: move limit_req_zone to http context (conf.d)

deploy/nginx.conf

@@ -7,26 +7,21 @@ server {
     listen 80;
     server_name _;
 
-    # 视频文件最大 500MB
     client_max_body_size 500M;
 
-    # 防止单 IP 提交过多任务
-    limit_req_zone $binary_remote_addr zone=api_limit:10m rate=5r/m;
-
     location /health {
         proxy_pass http://opensora_api;
         proxy_set_header Host $host;
     }
 
     location /v1/ {
-        limit_req zone=api_limit burst=10 nodelay;
+        limit_req zone=opensora_limit burst=10 nodelay;
 
         proxy_pass http://opensora_api;
         proxy_set_header Host              $host;
         proxy_set_header X-Real-IP         $remote_addr;
         proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
 
-        # 视频下载可能需要较长时间
         proxy_read_timeout    3600;
         proxy_send_timeout    3600;
         proxy_connect_timeout 10;

deploy/opensora-limit.conf

@@ -0,0 +1,3 @@
+# 放入 /etc/nginx/conf.d/，在 http 上下文中定义限流区
+# setup.sh 会自动复制此文件
+limit_req_zone $binary_remote_addr zone=opensora_limit:10m rate=5r/m;