@shinuza
The version inside the Debian image and the version on GitHub may be different. It is likely that there will be more recent versions on GitHub. Just don't select a version and the latest version from the Debian repository will be installed.
const k8sInstall = k8sVersion !== undefined ? `apt-get install -y kubelet=${k8sVersion} kubeadm=${k8sVersion} kubectl=${k8sVersion}` : "apt-get install -y kubelet kubeadm kubectl";