fix radosgw proxy configuration

Change-Id: I63f2e44adbb8d05d7845de802de427874d4ea1c5
Related-Prod: PROD-23428
diff --git a/nginx/server/proxy/ceph_radosgw.yml b/nginx/server/proxy/ceph_radosgw.yml
index c69ec3a..8207bda 100644
--- a/nginx/server/proxy/ceph_radosgw.yml
+++ b/nginx/server/proxy/ceph_radosgw.yml
@@ -12,7 +12,16 @@
           enabled: true
           type: nginx_proxy
           name: ceph_radosgw
+          proxy_set_header:
+            Host:
+              enabled: true
+              value: "$host"
+            X-Forwarded-For:
+              enabled: true
+              value: "$remote_addr"
           proxy:
+            size: 10240m
+            buffer_size: 10240m
             host: ${_param:nginx_proxy_radosgw_service_host}
             port: ${_param:nginx_proxy_radosgw_service_port}
             protocol: http