Refer to the Statistics (Web)

Configure HAProxy to see HAProxy's Statistics on the web.

[1] In addition to previous basic setting, Configure HAProxy.

[root@futurelinux ~]# vi /etc/haproxy/haproxy.cfg

# add into backend section
backend backend_servers
    # enable statistics reports
    stats enable
    # auth info for statistics site
    stats auth admin:password
    # hide version of HAProxy
    stats hide-version
    # display HAProxy hostname
    stats show-node
    # refresh time
    stats refresh 60s
    # statistics reports URI
    stats uri /haproxy?stats

[root@futurelinux ~]# systemctl restart haproxy

[2] Access to the frontend HAProxy server from a Client Host with HTTP/HTTPS, then authentication is required like follows, input the user and password you set in configuration.

[3] If authentication successfully passed, it's possible to see HAProxy Statistics Reports.