Versioning
set the Kubernetes version:’ ’ of the kubeadm-config.yaml to the export version at the first step. If the $K8S_VERSION is 1.19.0–00, then the k8s version would be v1.19.0
Configure API SANs
In order for your k8s API to work with kubectl and other applications with https it is essential that you enable the following in kubeadm-config.yaml
apiServer:
certSANs:
— 127.0.0.1
—
—
—