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Manage bootstrap tokens
### Synopsis
This command manages bootstrap tokens. It is optional and needed only for advanced use cases.
In short, bootstrap tokens are used for establishing bidirectional trust between a client and a server. A bootstrap token can be used when a client (for example a node that is about to join the cluster) needs to trust the server it is talking to. Then a bootstrap token with the "signing" usage can be used. bootstrap tokens can also function as a way to allow short-lived authentication to the API Server (the token serves as a way for the API Server to trust the client), for example for doing the TLS Bootstrap.
What is a bootstrap token more exactly? - It is a Secret in the kube-system namespace of type "bootstrap.kubernetes.io/token". - A bootstrap token must be of the form "[a-z0-9]{6}.[a-z0-9]{16}". The former part is the public token ID, while the latter is the Token Secret and it must be kept private at all circumstances! - The name of the Secret must be named "bootstrap-token-(token-id)".
You can read more about bootstrap tokens here: https://kubernetes.io/docs/admin/bootstrap-tokens/
``` kubeadm token [flags] ```
### Options
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<tr> <td colspan="2">--dry-run</td> </tr> <tr> <td></td><td style="line-height: 130%; word-wrap: break-word;"><p>Whether to enable dry-run mode or not</p></td> </tr>
<tr> <td colspan="2">-h, --help</td> </tr> <tr> <td></td><td style="line-height: 130%; word-wrap: break-word;"><p>help for token</p></td> </tr>
<tr> <td colspan="2">--kubeconfig string Default: "/etc/kubernetes/admin.conf"</td> </tr> <tr> <td></td><td style="line-height: 130%; word-wrap: break-word;"><p>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.</p></td> </tr>
</tbody> </table>
### Options inherited from parent commands
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<tr> <td colspan="2">--rootfs string</td> </tr> <tr> <td></td><td style="line-height: 130%; word-wrap: break-word;"><p>The path to the 'real' host root filesystem. This will cause kubeadm to chroot into the provided path.</p></td> </tr>
</tbody> </table>