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Load Balancers ​

HAPROXY ​

sh
apk add haproxy

Add config to the /etc/haproxy/haproxy.cfg file.

sh
mv /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.bak
sh
defaults
  maxconn 4000
  mode http
  log /dev/log local0
  option dontlognull
  timeout http-request 5s
  timeout connect 5000
  timeout client 2000000 # ddos protection
  timeout server 2000000 # stick-table type ip size 100k expire 30s store conn_cur

frontend kubernetes
    bind *:6443
    mode tcp
    option tcplog
    default_backend kubernetes-cluster

backend kubernetes-cluster
    option httpchk GET /healthz
    http-check expect status 200
    mode tcp
    option ssl-hello-chk
    balance roundrobin
        server master1 master1.cluster.kube-cluster:6443 check
        server master2 master2.cluster.kube-cluster:6443 check
        server master3 master3.cluster.kube-cluster:6443 check

Enable and start the service.

sh
rc-update add haproxy default
rc-service haproxy start

Check the connection

sh
curl -k https://cluster.kube-cluster:6443/healthz