NAME¶

kubeadm certs renew admin.conf - Renew the certificate embedded in the kubeconfig file for the admin to use and for kubeadm itself

SYNOPSIS¶

kubeadm certs renew admin.conf [OPTIONS]

DESCRIPTION¶

Renew the certificate embedded in the kubeconfig file for the admin to use and for kubeadm itself.

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.

OPTIONS¶

--cert-dir="/etc/kubernetes/pki" The path where to save the certificates

--config="" Path to a kubeadm configuration file.

--kubeconfig="/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="" The path to the 'real' host root filesystem. This will cause kubeadm to chroot into the provided path.

--version=false --version, --version=raw prints version information and quits; --version=vX.Y.Z... sets the reported version

SEE ALSO¶

kubeadm-certs-renew(1),

HISTORY¶

January 2015, Originally compiled by Eric Paris (eparis at redhat dot com) based on the kubernetes source material, but hopefully they have been automatically generated since!