HAproxy端口80和443到后端：80和后端：443

在HAProxy 1.5上进行了测试，效果很好

frontend http-https-in
bind    35.154.100.100:80
bind    35.154.100.100:443

use_backend http_nginx_pool    if !{ ssl_fc }
use_backend https_nginx_pool   if { ssl_fc }

backend http_nginx_pool
    mode http
    server nginx2 10.233.32.143:80 check

backend https_nginx_pool
    mode http
    server nginx2 10.233.32.143:443 check