1KUBERNETES(1)                      Jan 2015                      KUBERNETES(1)
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NAME

6       kubeadm token - Manage bootstrap tokens
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SYNOPSIS

11       kubeadm token [OPTIONS]
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DESCRIPTION

16       This  command  manages bootstrap tokens. It is optional and needed only
17       for advanced use cases.
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20       In short, bootstrap tokens  are  used  for  establishing  bidirectional
21       trust  between  a  client  and a server.  A bootstrap token can be used
22       when a client (for example a node that is about to  join  the  cluster)
23       needs to trust the server it is talking to. Then a bootstrap token with
24       the "signing" usage can be used.  bootstrap tokens can also function as
25       a  way to allow short-lived authentication to the API Server (the token
26       serves as a way for the API Server to trust the  client),  for  example
27       for doing the TLS Bootstrap.
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30       What is a bootstrap token more exactly?
31        -  It  is  a  Secret  in  the  kube-system  namespace  of  type "boot‐
32       strap.kubernetes.io/token".
33        - A bootstrap token must be of  the  form  "[a-z0-9]{6}.[a-z0-9]{16}".
34       The former part is the public token ID,
35          while  the latter is the Token Secret and it must be kept private at
36       all circumstances!
37        - The name of the Secret must be named "bootstrap-token-(token-id)".
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40       You can read more about bootstrap tokens here:
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42       ⟨https://kubernetes.io/docs/admin/bootstrap-tokens/⟩
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OPTIONS

47       --dry-run=false
48           Whether to enable dry-run mode or not
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51       --kubeconfig="/etc/kubernetes/admin.conf"
52           The kubeconfig file to use when talking to the cluster. If the flag
53       is not set, a set of standard locations can be searched for an existing
54       kubeconfig file.
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OPTIONS INHERITED FROM PARENT COMMANDS

59       --azure-container-registry-config=""
60           Path to the file containing Azure container registry  configuration
61       information.
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64       --log-flush-frequency=5s
65           Maximum number of seconds between log flushes
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68       --rootfs=""
69           [EXPERIMENTAL] The path to the 'real' host root filesystem.
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72       --version=false
73           Print version information and quit
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SEE ALSO

78       kubeadm(1),      kubeadm-token-create(1),      kubeadm-token-delete(1),
79       kubeadm-token-generate(1), kubeadm-token-list(1),
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HISTORY

84       January 2015, Originally compiled by Eric Paris (eparis at  redhat  dot
85       com)  based  on the kubernetes source material, but hopefully they have
86       been automatically generated since!
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90Eric Paris                  kubernetes User Manuals              KUBERNETES(1)
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