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neiroc / k8s_add_SAN_apiserver.md
Last active February 11, 2025 20:59
Add SAN to Kubernetes apiserver

kubernetes - add SANs to apiserver certificate

Tested in kubernetes version 1.32

kubectl -n kube-system get configmap kubeadm-config -o jsonpath='{.data.ClusterConfiguration}' > kubeadm.yaml
  • Add to kubeadm.yaml