# apt install haproxy

# cat /etc/haproxy/haproxy.cfg
...
frontend kubernetes-apiserver
    mode                 http
    bind                 *:83
    option               tcplog
    default_backend      kubernetes-apiserver

backend kubernetes-apiserver
    mode        http
    balance     roundrobin
    server  node1 node1:30758 check
    server  node2 node2:30758 check
    server  node3 node3:30758 check
    
# haproxy -f /etc/haproxy/haproxy.cfg -c
Configuration file is valid

# service haproxy restart

# curl http://localhost:83/