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 Dec 15, 2023 00:30 UTC 277d no apiserver Dec 04, 2023 17:03 UTC 266d ca no apiserver-etcd-client Dec 04, 2023 17:03 UTC 266d etcd-ca no apiserver-kubelet-client Dec 04, 2023 17:03 UTC 266d ca no controller-manager.conf Dec 04, 2023 17:03 UTC 266d no etcd-healthcheck-client Dec 04, 2023 17:03 UTC 266d etcd-ca no etcd-peer Dec 04, 2023 17:03 UTC 266d etcd-ca no etcd-server Dec 04, 2023 17:03 UTC 266d etcd-ca no front-proxy-client Dec 04, 2023 17:03 UTC 266d front-proxy-ca no scheduler.conf Dec 04, 2023 17:03 UTC 266d no CERTIFICATE AUTHORITY EXPIRES RESIDUAL TIME EXTERNALLY MANAGED ca Jun 24, 2032 19:58 UTC 9y no etcd-ca Jun 24, 2032 19:58 UTC 9y no front-proxy-ca Jun 24, 2032 19:58 UTC 9y no