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.TH KUBERNETES(1) kubernetes User Manuals
Eric Paris
Jan 2015

.SH NAME
.PP
kubeadm certs renew super-admin.conf - Renew the certificate embedded in the kubeconfig file for the super-admin


.SH SYNOPSIS
.PP
\fBkubeadm certs renew super-admin.conf\fP [OPTIONS]


.SH DESCRIPTION
.PP
Renew the certificate embedded in the kubeconfig file for the super-admin.

.PP
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.

.PP
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.

.PP
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.


.SH OPTIONS
.PP
\fB--cert-dir\fP="/etc/kubernetes/pki"
	The path where to save the certificates

.PP
\fB--config\fP=""
	Path to a kubeadm configuration file.

.PP
\fB--kubeconfig\fP="/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.


.SH OPTIONS INHERITED FROM PARENT COMMANDS
.PP
\fB--rootfs\fP=""
	[EXPERIMENTAL] The path to the 'real' host root filesystem.

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


.SH SEE ALSO
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\fBkubeadm-certs-renew(1)\fP,


.SH HISTORY
.PP
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!