gcloud="gcloud beta"
  fi

  local preemptible_minions=()
  if [[ "${PREEMPTIBLE_NODE}" == "true" ]]; then
    preemptible_minions+=(--preemptible --maintenance-policy TERMINATE)
  fi

  local local_ssds=()
  local_ssd_ext_count=0
  if [[ -n "${NODE_LOCAL_SSDS_EXT:-}" ]]; then
    IFS=";" read -r -a ssdgroups <<< "${NODE_LOCAL_SSDS_EXT:-}"