KUBELET_CONFIG_FILE_ARG="--config ${KUBE_HOME}/kubelet-config.yaml"
  fi

  if [[ -e "${KUBE_HOME}/kube-master-certs" ]]; then
    log-wrap 'SourceKubeMasterCerts' source "${KUBE_HOME}/kube-master-certs"
  fi

  log-start 'VerifyKubeUser'
  if [[ -n "${KUBE_USER:-}" ]]; then
    if ! [[ "${KUBE_USER}" =~ ^[-._@a-zA-Z0-9]+$ ]]; then