kubernetes cert expired

[fanux]

Using this kubeadm(99 years cert)

More info...

install:

chmod +x kubeadm && cp kubeadm /usr/bin

update pki:

[root@dev-86-202 ~]# rm /etc/kubernetes/pki/ -rf
[root@dev-86-202 ~]# kubeadm alpha phase certs all --config  kube/conf/kubeadm.yaml

update kubeconfig

[root@dev-86-202 ~]# rm -rf /etc/kubernetes/*conf
[root@dev-86-202 ~]# kubeadm alpha phase kubeconfig all --config ~/kube/conf/kubeadm.yaml
[root@dev-86-202 ~]# cp /etc/kubernetes/admin.conf ~/.kube/config

test:

$ cd /etc/kubernetes/pki
$ openssl x509 -in apiserver-etcd-client.crt -text -noout
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 4701787282062078235 (0x41401a9f34c2711b)
    Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN=etcd-ca
        Validity
            Not Before: Nov 22 11:58:50 2018 GMT
            Not After : Oct 29 11:58:51 2117 GMT

kubectl get pod -n kube-system