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document some steps about kubelet client certs recovery #2502

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neolit123 opened this issue Jun 3, 2021 · 2 comments · Fixed by kubernetes/website#28312
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document some steps about kubelet client certs recovery #2502

neolit123 opened this issue Jun 3, 2021 · 2 comments · Fixed by kubernetes/website#28312
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help wanted Denotes an issue that needs help from a contributor. Must meet "help wanted" guidelines. kind/documentation Categorizes issue or PR as related to documentation. priority/backlog Higher priority than priority/awaiting-more-evidence.

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@neolit123
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neolit123 commented Jun 3, 2021 •
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document some steps about kubelet client certs recovery

kubeadm does not manage the kubelet.conf and symlinked rotable client certificates for the kubelet to interact with the apiserver.
by default kubeadm deploys the kubelet with auto client cert rotation, but in some cases user setups can end up with with an expired cert, rendering this node as "not ready".

we can add some steps on how users can escape this scenario here:
https://kubernetes.io/docs/tasks/administer-cluster/kubeadm/kubeadm-certs/

here we have some info on what commands can be used:
kubernetes/kubernetes#102556
#581 (comment)
@neolit123 neolit123 added help wanted Denotes an issue that needs help from a contributor. Must meet "help wanted" guidelines. kind/documentation Categorizes issue or PR as related to documentation. priority/backlog Higher priority than priority/awaiting-more-evidence. labels Jun 3, 2021
@neolit123 neolit123 added this to the v1.22 milestone Jun 3, 2021
@antoinep92
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@neolit123 not sure if I'm qualified enough, but since you tagged help wanted, maybe I can draft a doc PR next week and you or somebody can review ?

@neolit123
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sure, go ahead @antoinep92

@k8s-ci-robot k8s-ci-robot mentioned this issue Jun 7, 2021
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Document recovery from broken kubelet certificate
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@neolit123 @antoinep92