不多说，上配置

global
    log         127.0.0.1 local2
    chroot      /var/lib/haproxy
    pidfile     /var/run/haproxy.pid
    maxconn     6000
    user        haproxy
    group       haproxy
    daemon
    stats socket /var/lib/haproxy/stats
#---------------------------------------------------------------------
defaults
    mode                    tcp
    log                     global
    option                  tcplog
    option                  dontlognull
    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
#---------------------------------------------------------------------
listen stats
    bind 0.0.0.0:9100
    mode  http
    stats uri /status
    stats refresh 30s
    stats realm "Haproxy Manager"
    stats auth admin:admin
    stats hide-version
    stats admin if TRUE
#---------------------------------------------------------------------
frontend  k8s-master-default-nodepool-apiserver
    bind *:6443
    mode tcp
    default_backend             k8s-master-default-nodepool
#---------------------------------------------------------------------
backend k8s-master-default-nodepool
    balance     roundrobin
    mode tcp
    server  k8s-master-default-nodepool-1 k8s-master-default-nodepool-1:6443 check weight 1 maxconn 2000 check inter 2000 rise 2 fall 3
    server  k8s-master-default-nodepool-2 k8s-master-default-nodepool-2:6443 check weight 1 maxconn 2000 check inter 2000 rise 2 fall 3
    server  k8s-master-default-nodepool-3 k8s-master-default-nodepool-3:6443 check weight 1 maxconn 2000 check inter 2000 rise 2 fall 3