# 前台服务后端地址,多个地址可用与负载均衡
# 解析以逗号分隔的多个 upstream 值
upstream web_servers {
server $UPSTREAM_WEB_SERVERS;
}
upstream manage_servers {
server $UPSTREAM_MANAGE_SERVERS;
upstream rasa_servers {
server $UPSTREAM_RASA_SERVERS;
upstream graph_servers {
server $UPSTREAM_GRAPH_SERVERS;