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

.SH NAME
kubeadm join phase preflight - Run join pre-flight checks


.SH SYNOPSIS
\fBkubeadm join phase preflight\fP [OPTIONS]


.SH DESCRIPTION
Run pre-flight checks for kubeadm join.


.SH OPTIONS
\fB--apiserver-advertise-address\fP=""
	If the node should host a new control plane instance, the IP address the API Server will advertise it's listening on. If not set the default network interface will be used.

.PP
\fB--apiserver-bind-port\fP=6443
	If the node should host a new control plane instance, the port for the API Server to bind to.

.PP
\fB--certificate-key\fP=""
	Use this key to decrypt the certificate secrets uploaded by init. The certificate key is a hex encoded string that is an AES key of size 32 bytes.

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

.PP
\fB--control-plane\fP=false
	Create a new control plane instance on this node

.PP
\fB--cri-socket\fP=""
	Path to the CRI socket to connect. If empty kubeadm will try to auto-detect this value; use this option only if you have more than one CRI installed or if you have non-standard CRI socket.

.PP
\fB--discovery-file\fP=""
	For file-based discovery, a file or URL from which to load cluster information.

.PP
\fB--discovery-token\fP=""
	For token-based discovery, the token used to validate cluster information fetched from the API server.

.PP
\fB--discovery-token-ca-cert-hash\fP=[]
	For token-based discovery, validate that the root CA public key matches this hash (format: ":").

.PP
\fB--discovery-token-unsafe-skip-ca-verification\fP=false
	For token-based discovery, allow joining without --discovery-token-ca-cert-hash pinning.

.PP
\fB--dry-run\fP=false
	Don't apply any changes; just output what would be done.

.PP
\fB--ignore-preflight-errors\fP=[]
	A list of checks whose errors will be shown as warnings. Example: 'IsPrivilegedUser,Swap'. Value 'all' ignores errors from all checks.

.PP
\fB--node-name\fP=""
	Specify the node name.

.PP
\fB--tls-bootstrap-token\fP=""
	Specify the token used to temporarily authenticate with the Kubernetes Control Plane while joining the node.

.PP
\fB--token\fP=""
	Use this token for both discovery-token and tls-bootstrap-token when those values are not provided.


.SH OPTIONS INHERITED FROM PARENT COMMANDS
\fB--rootfs\fP=""
	The path to the 'real' host root filesystem. This will cause kubeadm to chroot into the provided path.

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


.SH EXAMPLE
.EX
  # Run join pre-flight checks using a config file.
  kubeadm join phase preflight --config kubeadm-config.yaml
.EE


.SH SEE ALSO
\fBkubeadm-join-phase(1)\fP,


.SH 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!