--project "${NETWORK_PROJECT}" \
          --region "${REGION}" \
          "${IP_ALIAS_SUBNETWORK}"
      fi
    fi
  fi
}

# Generates SSL certificates for etcd cluster peer to peer communication. Uses cfssl program.
#
# Assumed vars:
#   KUBE_TEMP: temporary directory
#
# Args:
#  $1: host name
#  $2: CA certificate
#  $3: CA key