nginx 反向代理REST API

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 61 include /etc/nginx/conf.d/*.conf;
 62 include /etc/nginx/sites-enabled/*;

 upstream tornadoes {
 server 127.0.0.1:6001;
 server 127.0.0.1:6002;
 server 127.0.0.1:6003;
 server 127.0.0.1:6004;
 }
 server {
 listen 5000;
 ## Individual nginx logs
 access_log /var/log/nginx/web_proxy_access.log;
 error_log /var/log/nginx/web_proxy_error.log;
 location / {
 proxy_pass http://tornadoes; ## 和upstream 名稱組對應即可
 }
 }