Use this command to send encryption-config.yaml
to your controllers:
for idx in $(seq 0 2);
do
ip=$(az network public-ip show -g kubernetes -n "controller-${idx}PublicIP" --query 'ipAddress' -o tsv)
scp -i kthw_ssh_key -o StrictHostKeyChecking=no \
-o UserKnownHostsFile=/dev/null \
"encryption-config.yaml" "ubuntu@$ip:/home/ubuntu/"
done