kube-controller-manager kubeconfig:
johndoe@management-vm$ kubectl config set-cluster kubernetes \
--certificate-authority=../certs/ca.pem \
--embed-certs=true \
--server=https://127.0.0.1:6443 \
--kubeconfig=kube-controller-manager.kubeconfig
johndoe@management-vm$ kubectl config set-credentials \
system:kube-controller-manager \
--client-certificate=../certs/control-plane/kube-controller-manager.pem \
--client-key=../certs/control-plane/kube-controller-manager-key.pem \
--embed-certs=true \
--kubeconfig=kube-controller-manager.kubeconfig
johndoe@management-vm$ kubectl config set-context default \
--cluster=kubernetes \
--user=system:kube-controller-manager \
--kubeconfig=kube-controller-manager.kubeconfig
johndoe@management-vm$ kubectl config use-context default --kubeconfig=kube-controller-manager.kubeconfig