IP_ALIAS_SUBNETWORK=${KUBE_GCE_IP_ALIAS_SUBNETWORK:-${INSTANCE_PREFIX}-subnet-default}
  # If we're using custom network, use the subnet we already create for it as the one for ip-alias.
  # Note that this means SUBNETWORK would override KUBE_GCE_IP_ALIAS_SUBNETWORK in case of custom network.
  if [[ "${CREATE_CUSTOM_NETWORK}" = true ]]; then
    IP_ALIAS_SUBNETWORK=${SUBNETWORK}
  fi
  export IP_ALIAS_SIZE

  export IP_ALIAS_SIZE
  IP_ALIAS_SUBNETWORK=${KUBE_GCE_IP_ALIAS_SUBNETWORK:-${INSTANCE_PREFIX}-subnet-default}
  # If we're using custom network, use the subnet we already create for it as the one for ip-alias.
  # Note that this means SUBNETWORK would override KUBE_GCE_IP_ALIAS_SUBNETWORK in case of custom network.
  if [[ "${CREATE_CUSTOM_NETWORK}" == true ]]; then
    export IP_ALIAS_SUBNETWORK="${SUBNETWORK}"
  fi