haproxy.cfg

global
    maxconn 500

defaults
    mode http
    timeout connect 10s
    timeout client 50s
    timeout server 50s

frontend http-in
    bind *:9091
    default_backend application_nodes

backend application_nodes
    balance roundrobin
    option httpchk GET /status
    server server01 frontend1:9092 check
    server server02 localhost:9093 check