kubeadm Command Examples

Command-line interface for creating and managing Kubernetes clusters. More information: https://kubernetes.io/docs/reference/setup-tools/kubeadm.

• Create a Kubernetes master node:

kubeadm init

• Bootstrap a Kubernetes worker node and join it to a cluster:

kubeadm join --token {{token}}

• Create a new bootstrap token with a TTL of 12 hours:

kubeadm token create --ttl {{12h0m0s}}

• Check if the Kubernetes cluster is upgradeable and which versions are available:

kubeadm upgrade plan

• Upgrade Kubernetes cluster to a specified version:

kubeadm upgrade apply {{version}}

• View the kubeadm ConfigMap containing the cluster's configuration:

kubeadm config view

• Revert changes made to the host by 'kubeadm init' or 'kubeadm join':

kubeadm reset