Fix nginx streaming without caching the response (opea-project#797)

* Fix nginx streaming without caching the response

Signed-off-by: lvliang-intel <[email protected]>

* add gzip off

Signed-off-by: lvliang-intel <[email protected]>

---------

Signed-off-by: lvliang-intel <[email protected]>

Author: lvliang-intel

comps/nginx/nginx.conf.template

@@ -16,6 +16,11 @@ server {
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
+
+        proxy_buffering off;
+        proxy_cache off;
+        proxy_request_buffering off;
+        gzip off;
     }
 
     location /v1/${BACKEND_SERVICE_NAME} {