nginx-s3-vhost.conf

  location / {
    if ($request_method = OPTIONS) {
      add_header Content-Length 0;
      add_header Content-Type text/plain;
      return 200;
    }

    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $host;
    proxy_max_temp_file_size 0;

    proxy_pass http://s3_backend;

    header_filter_by_lua_block {
      if ngx.req.get_method() == "PUT" and ngx.status == ngx.HTTP_OK then
        ngx.status = ngx.HTTP_CREATED
      end
    }
  }