我也有同样问题，证书是刚生成的报警人在持续。
job = apiserver
namespace = default
prometheus = kubesphere-monitoring-system/k8s
service = kubernetes
severity = warning
Annotations
description = A client certificate used to authenticate to kubernetes apiserver is expiring in less than 7.0 days.
summary = Client certificate is about to expire.
ll /etc/kubernetes/pki/ -t
总用量 48
-rw-r–r– 1 kube root 1119 6月 2 03:00 front-proxy-client.crt
-rw——- 1 kube root 1675 6月 2 03:00 front-proxy-client.key
-rw-r–r– 1 kube root 1164 6月 2 03:00 apiserver-kubelet-client.crt
-rw——- 1 kube root 1675 6月 2 03:00 apiserver-kubelet-client.key
-rw-r–r– 1 kube root 2033 6月 2 03:00 apiserver.crt
-rw——- 1 kube root 1675 6月 2 03:00 apiserver.key
-rw——- 1 kube root 1675 7月 15 2022 sa.key
-rw——- 1 kube root 451 7月 15 2022 sa.pub
-rw-r–r– 1 kube root 1115 7月 15 2022 front-proxy-ca.crt
-rw——- 1 kube root 1675 7月 15 2022 front-proxy-ca.key
-rw-r–r– 1 kube root 1099 7月 15 2022 ca.crt
-rw——- 1 kube root 1679 7月 15 2022 ca.key
ls -lt /var/lib/kubelet/pki/
总用量 16
lrwxrwxrwx 1 root root 59 6月 2 2023 kubelet-client-current.pem -> /var/lib/kubelet/pki/kubelet-client-2023-06-02-23-43-08.pem
-rw——- 1 root root 1147 6月 2 2023 kubelet-client-2023-06-02-23-43-08.pem
-rw——- 1 root root 2859 7月 15 2022 kubelet-client-2022-07-15-11-49-31.pem
