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Feature request: kubeadm certs check-expiration output in JSON or YAML format #2866
Description
Thanks for your work with kubeadm, really appreciated.
We would like to get a JSON or YAML output of the certificate expiration information.
user@k8s-control:~$ sudo kubeadm certs check-expiration
[check-expiration] Reading configuration from the cluster...
[check-expiration] FYI: You can look at this config file with 'kubectl -n kube-system get cm kubeadm-config -o yaml'
CERTIFICATE EXPIRES RESIDUAL TIME CERTIFICATE AUTHORITY EXTERNALLY MANAGED
admin.conf Apr 09, 2024 09:17 UTC 348d ca no
apiserver Apr 09, 2024 09:16 UTC 348d ca no
apiserver-kubelet-client Apr 09, 2024 09:16 UTC 348d ca no
controller-manager.conf Apr 09, 2024 09:16 UTC 348d ca no
front-proxy-client Apr 09, 2024 09:16 UTC 348d front-proxy-ca no
scheduler.conf Apr 09, 2024 09:17 UTC 348d ca no
CERTIFICATE AUTHORITY EXPIRES RESIDUAL TIME EXTERNALLY MANAGED
ca Nov 03, 2029 14:13 UTC 6y no
front-proxy-ca Nov 03, 2029 14:13 UTC 6y no
So we can easily parse the information from this output for another software (like, for example, alert if certs are about to expire).
Activity
[-]Feature request: kubead, certs check-expiration output in JSON or YAML format[/-][+]Feature request: kubeadm certs check-expiration output in JSON or YAML format[/+]neolit123 commentedon Apr 26, 2023
this seems like a good suggestion. thank you
added it to the main issue for machine readable output:
#494
and closing this one
cc @pacoxu @SataQiu
neolit123 commentedon Apr 26, 2023
@aborrero also if you or someone is willing to contribute the change, help is welcome.