kubeadm-certs-renew-apiserver-kubelet-client1
Renew the certificate for the api server to connect to kubelet
Usage
kubeadm certs
renew
apiserver-kubelet-client
[OPTIONS]
Eric Paris Jan 2015
Overview
Renew the certificate for the API server to connect to kubelet.
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