zone update recursiv and with checkzone

dns-update.sh

#!/bin/bash

DNS_ZONES_FOLDER='/srv/dns'

# Check if DNS zones folder exists
if [ ! -d "$DNS_ZONES_FOLDER" ]; then
  echo "${DNS_ZONES_FOLDER} does not exists!" >&2
  exit 1
fi
echo "git pull:"
for GITDNS in ${DNS_ZONES_FOLDER}/*; do
        git -C "$GITDNS" pull
done

echo -e "\nfetch zones:"
for DNS_ZONE in $(find $DNS_ZONES_FOLDER -name "*.zone"); do
  if ! nsd-checkzone "$(basename ${DNS_ZONE} '.zone')" "${DNS_ZONE}"; then
    continue
  fi

  cp "$DNS_ZONE" "/etc/nsd/zone/"
done

echo -e "\nreload zones:"
echo -n "" > /etc/nsd/zones.conf
for DNS_ZONE in $(find /etc/nsd/zone/ -name "*.zone"); do
  echo -e "zone:\n" \
          "     name: \"$(basename ${DNS_ZONE} '.zone')\"\n" \
          "     include-pattern: default\n" \
          "     zonefile: \"$(basename ${DNS_ZONE})\"\n" >> /etc/nsd/zones.conf

  # Reload zone
  echo -n "zone $(basename ${DNS_ZONE} '.zone') "
  nsd-control reload "$(basename ${DNS_ZONE} '.zone')"

  # Notify slaves about changed zones
  # should reload do
  nsd-control notify "$(basename ${DNS_ZONE} '.zone')"
done

# Reload DNS server configuration
nsd-control reconfig >/dev/null