#!/bin/sh

if [ $# != 2 ]; then 
 echo "ERR: Must have two arguments: DNS server name and zone/environment" 1>&2
 return 2 
fi

ZONE=$2
SERVER=$1
FACTS_DIR="/var/lib/puppet/yaml/facts"
ZONE_FILE="/srv/puppet/files/common/dns/db.$ZONE-dynamic.$SERVER"

if [ ! -d "${FACTS_DIR}" ]; then
    echo "ERR: Cannot find Facter facts directory ${FACTS_DIR}" 1>&2
    exit 3
fi

if [ -f "${ZONE_FILE}" ]; then 
  rm $ZONE_FILE
fi 
cd $FACTS_DIR
for i in `grep -l "environment: $ZONE" *`; 
do
  echo $i 
  hn=`grep hostname $i | cut -f 2 -d ':' | tr -d ' '`
  ip=`grep "ipaddress:" $i | cut -f 2 -d ':'`
  a=`grep "aliases:" $i | cut -f 2 -d ':' | tr -d '"' | tr -d ' '| tr ',' "\n"`; 
  echo "$hn IN A $ip" >> $ZONE_FILE
  if [ "$a" != "" ]; then
    for j in $a; 
     do 
       echo "$j CNAME $hn" >> $ZONE_FILE
     done 
  fi
done