High Availability

#Config HA

defaults
log global
option tcplog
mode tcp
#<-- Edit these three lines, starting around line 23
errorfile 503 /etc/haproxy/errors/503.http
errorfile 504 /etc/haproxy/errors/504.http
frontend proxynode
bind *:80
bind *:6443
stats uri /proxystats
default_backend k8sServers
backend k8sServers
balance roundrobin
#<-- Add the following lines to bottom of file
server cp 10.128.0.24:6443 check #<-- Edit these with your IP addresses, port, and hostname
# server Secondcp 10.128.0.30:6443 check #<-- Comment out until ready
# server Thirdcp 10.128.0.66:6443 check #<-- Comment out until ready
listen stats
bind :9999
mode http
stats enable
stats hide-version
stats uri /stats

#edit CP
sudo vim /etc/hosts
HA-Proxy-IP master
#comment out old master ip

#Join control plane nodes
sudo kubeadm token create
#create new hash
openssl x509 -pubkey \-in /etc/kubernetes/pki/ca.crt | openssl rsa \-pubin -outform der 2>/dev/null | openssl dgst \-sha256 -hex | sed's/ˆ.* //'

#create new cp cert
sudo kubeadm init phase upload-certs --upload-certs1