Upgrade the kubelet configuration for this node
Download the kubelet configuration from a ConfigMap of the form “kubelet-config-1.X” in the cluster, where X is the minor version of the kubelet. kubeadm uses the KuberneteVersion field in the kubeadm-config ConfigMap to determine what the desired kubelet version is, but the user can override this by using the –kubelet-version parameter.
kubeadm upgrade node phase kubelet-config [flags]
--dry-run Do not change any state, just output the actions that would be performed. -h, --help help for kubelet-config --kubeconfig string The kubeconfig file to use when talking to the cluster. If the flag is not set, a set of standard locations can be searched for an existing kubeconfig file. (default "/etc/kubernetes/admin.conf") --kubelet-version string The *desired* version for the kubelet config after the upgrade. If not specified, the KubernetesVersion from the kubeadm-config ConfigMap will be used
--rootfs string [EXPERIMENTAL] The path to the 'real' host root filesystem.
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