Transit authority workers fail kubeadm join because the bootstrap t…

Question

Transit authority workers fail kubeadm join because the bootstrap token expired. What should admins do?

Accepted Answer

Create a new bootstrap token (and use the current discovery CA hash) and re-run kubeadm join with valid credentials. — Join tokens are day passes that expire—print a fresh one when the old gate code goes stale. Pair it with the discovery CA hash and run kubeadm join again. Hosts file tricks do not mint tokens.

Answer

Reboot the API server so expired tokens automatically renew for 24 hours.

Answer

Edit each worker’s /etc/hosts to map the old token string to the VIP.

Answer

Switch workers to kubectl apply -f node.yaml without kubeadm.

Transit authority workers fail `kubeadm join` because the bootstrap token expired. What should admins do?

Short Explanation

Full Explanation