Created
December 19, 2016 15:47
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Script for gluing nsnotifyd and cli53 together
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#!/bin/bash | |
set -e | |
# Script to update a zone - designed to be triggerd by nsnotifyd | |
PATH=/bin:/usr/bin:/usr/local/bin:$PATH | |
# Constants | |
DYN_TRANSFER_HOST=xfrout1.dynect.net | |
# Get command line parameters | |
ZONE=$1 | |
NOTIFY_SERIAL=$2 | |
SOURCE=$3 | |
# check command line parameters | |
if [ -z "${ZONE}" -o -z "${NOTIFY_SERIAL}" ]; then | |
echo "Usage: $0 <zone> <serial> [<source>]" >&2 | |
exit 1 | |
fi | |
ZONEFILE=`mktemp /tmp/${ZONE}.zonefile.XXXXXXXXX` | |
dig AXFR ${ZONE} @${DYN_TRANSFER_HOST} > ${ZONEFILE} 2>&1 | |
# check if the transfer was successful | |
if ! egrep "Transfer failed|connection timed out|Name or service not known|connection refused|network unreachable|host unreachable|end of file|communications error|couldn't get address" ${ZONEFILE} > /dev/null; then | |
#extract serial from ZONEFILE | |
SOA_SERIAL=$( cat ${ZONEFILE} | awk '{if ($4 == "SOA") print $7;}' | head -1 ) | |
if [ "$SOA_SERIAL" -eq "$SOA_SERIAL" ] 2>/dev/null; then | |
SERIAL=$SOA_SERIAL | |
else | |
echo "SOA record not found in transferred zone, couldn't extract serial" | |
exit | |
fi | |
# append a serial number record for troubleshooting | |
echo -e "\n_serial._dyn.${ZONE}. IN TXT \"${SERIAL}\"" >> ${ZONEFILE} | |
# push into Route53 | |
cli53 import --file ${ZONEFILE} --replace ${ZONE} | |
fi | |
rm ${ZONEFILE} |
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