Generates the certificate for serving the kubernetes API
Renews the certificate for serving the kubernetes API, and saves them into apiserver.cert and apiserver.key files.
Extra attributes such as SANs will be based on the existing certificates, there is no need to resupply them.
kubeadm alpha phase certs renew apiserver [flags]
|--cert-dir string Default: "/etc/kubernetes/pki"|
|The path where to save the certificates|
|Path to kubeadm config file (WARNING: Usage of a configuration file is experimental)|
|help for apiserver|
|--kubeconfig string Default: "/etc/kubernetes/admin.conf"|
|The KubeConfig file to use when talking to the cluster. If the flag is not set, a set of standard locations are searched for an existing KubeConfig file.|
|Use the Kubernetes certificate API to renew certificates|
|[EXPERIMENTAL] The path to the 'real' host root filesystem.|