Upload the kubeadm ClusterConfiguration to a ConfigMap called kubeadm-config in the kube-system namespace. This enables correct configuration of system components and a seamless user experience when upgrading.
Alternatively, you can use kubeadm config.
kubeadm init phase upload-config kubeadm [flags]
# upload the configuration of your cluster kubeadm init phase upload-config --config=myConfig.yaml
|Path to a kubeadm configuration file.|
|help for kubeadm|
|--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 can be searched for an existing kubeconfig file.|
|[EXPERIMENTAL] The path to the 'real' host root filesystem.|
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