Simple haproxy.cfg for load balancing with OpenShift Container Platform (OCP) 4.x

haproxy.cfg

global
  log         127.0.0.1 local2
  pidfile     /var/run/haproxy.pid
  maxconn     4000
  daemon
defaults
  mode                    http
  log                     global
  option                  dontlognull
  option http-server-close
  option                  redispatch
  retries                 3
  timeout http-request    10s
  timeout queue           1m
  timeout connect         10s
  timeout client          1m
  timeout server          1m
  timeout http-keep-alive 10s
  timeout check           10s
  maxconn                 3000
frontend stats
  bind *:1936
  mode            http
  log             global
  maxconn 10
  stats enable
  stats hide-version
  stats refresh 30s
  stats show-node
  stats show-desc Stats for ocp cluster
  stats auth admin:ocp4
  stats uri /stats
listen api-server-6443
  bind api.ocp.markieta.com:6443
  mode tcp
#  server bootstrap bootstrap.ocp.markieta.com:6443 check inter 1s backup
  server master-01 master-01.ocp.markieta.com:6443 check inter 1s
  server master-02 master-02.ocp.markieta.com:6443 check inter 1s
  server master-03 master-03.ocp.markieta.com:6443 check inter 1s
listen machine-config-server-22623
  bind api-int.ocp.markieta.com:22623
  mode tcp
#  server bootstrap bootstrap.ocp.markieta.com:22623 check inter 1s backup
  server master-01 master-01.ocp.markieta.com:22623 check inter 1s
  server master-02 master-02.ocp.markieta.com:22623 check inter 1s
  server master-03 master-03.ocp.markieta.com:22623 check inter 1s
listen ingress-router-443
  bind 192.168.0.102:443
  mode tcp
  balance source
  server worker-01 worker-01.ocp.markieta.com:443 check inter 1s
  server worker-02 worker-02.ocp.markieta.com:443 check inter 1s
  server worker-03 worker-03.ocp.markieta.com:443 check inter 1s
listen ingress-router-80
  bind 192.168.0.102:80
  mode tcp
  balance source
  server worker-01 worker-01.ocp.markieta.com:80 check inter 1s
  server worker-02 worker-02.ocp.markieta.com:80 check inter 1s
  server worker-03 worker-03.ocp.markieta.com:80 check inter 1s