I tried to use haproxy for the dashboard high availability and encryption. I can visit my dashboard through https://my_ip/dashboard . But when I tried to login, it will redirect the page to http, which is not encrypted.

here's my haproxy configuration:

frontend horizon-https-vip

bind x.x.x.x:443 ssl crt /root/server.pem ca-file /root/server.crt

reqadd X-Forwarded-Proto:\ https

default_backend horizon-https-api

backend horizon-https-api

    redirect scheme https code 301 if !{ ssl_fc }

    balance  source

    cookie  SERVERID insert indirect nocache

    mode  http

    option  forwardfor

    option  httpchk

    option  httpclose

    rspidel  ^Set-cookie:\ IP=

    server controller01 10.0.0.1:80 cookie controller01 check inter 2000 rise 2 fall 5

    server controller02 10.0.0.2:80 cookie controller02 check inter 2000 rise 2 fall 5