Join an additional control-plane node.
Section: Cluster Bootstrap
Join control-plane node
bash
bash
kubeadm join k8s.example.com:6443 --token abcdef.0123456789abcdef --discovery-token-ca-cert-hash sha256:<hash> --control-plane --certificate-key <key>Explanation
Join an additional control-plane node.
Learn the surrounding workflow
Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing Cluster Bootstrap
Create token and print join command
Generate a ready-to-run join command.
Initialize with cert upload
Initialize HA control plane and upload certs for additional control-plane joins.