    server {
        listen       80;
        server_name  localhost;

        location /web/ {
            alias  /dist/;
            index  index.html index.htm;
        }

        location /sztrainsys__web {
            proxy_pass http://gateway.ibizcloud.cn:20086;
            proxy_set_header  Host              $host;
            proxy_set_header  X-Forwarded-For   $proxy_add_x_forwarded_for;
            proxy_set_header  X-Forwarded-Host  $host;
            proxy_set_header  X-Real-IP         $remote_addr;
        }

        error_page   500 502 503 504  /50x.html;

        location = /50x.html {
            root   html;
        }
    }