Renew the certificate embedded in the kubeconfig file for the super-admin
Synopsis
Renew the certificate embedded in the kubeconfig file for the super-admin.
Renewals run unconditionally, regardless of certificate expiration date; extra attributes such as SANs will be based on the existing file/certificates, there is no need to resupply them.
Renewal by default tries to use the certificate authority in the local PKI managed by kubeadm; as alternative it is possible to use K8s certificate API for certificate renewal, or as a last option, to generate a CSR request.
After renewal, in order to make changes effective, is required to restart control-plane components and eventually re-distribute the renewed certificate in case the file is used elsewhere.
kubeadm certs renew super-admin.conf [flags]
Options
| --cert-dir string Default: "/etc/kubernetes/pki" | |
The path where to save the certificates | |
| --config string | |
Path to a kubeadm configuration file. | |
| -h, --help | |
help for super-admin.conf | |
| --kubeconfig string Default: "/etc/kubernetes/admin.conf" | |
The kubeconfig file to use when talking to the cluster. If the flag is not set, a set of standard locations can be searched for an existing kubeconfig file. | |
Options inherited from parent commands
| --rootfs string | |
The path to the 'real' host root filesystem. This will cause kubeadm to chroot into the provided path. | |