docker： 修改nginx-docker 构建文件

docker/nginx/docs/conf.d/servers.conf.template

@@ -8,3 +8,11 @@
     upstream manage_servers {
         server $UPSTREAM_MANAGE_SERVERS;
     }
+
+    upstream rasa_servers {
+        server $UPSTREAM_RASA_SERVERS;
+    }
+
+	upstream graph_servers {
+        server $UPSTREAM_GRAPH_SERVERS;
+    }