diff options
Diffstat (limited to 'designate/backend/impl_bind9.py')
| -rw-r--r-- | designate/backend/impl_bind9.py | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/designate/backend/impl_bind9.py b/designate/backend/impl_bind9.py index 8f04bfdc..060c8f9c 100644 --- a/designate/backend/impl_bind9.py +++ b/designate/backend/impl_bind9.py @@ -108,6 +108,28 @@ class Bind9Backend(base.Backend): context, zone, self._host, self._port, self.timeout, self.retry_interval, self.max_retries, self.delay) + def get_zone(self, context, zone): + """Returns True if zone exists and False if not""" + LOG.debug('Get Zone') + + view = 'in %s' % self._view if self._view else '' + + rndc_op = [ + 'showzone', + '%s %s' % (zone['name'].rstrip('.'), view), + ] + try: + self._execute_rndc(rndc_op) + except exceptions.Backend as e: + if "not found" in str(e): + LOG.debug('Zone %s not found on the backend', zone['name']) + return False + else: + LOG.warning('RNDC call failure: %s', e) + raise e + + return True + def delete_zone(self, context, zone): """Delete a new Zone by executin rndc Do not raise exceptions if the zone does not exist. @@ -135,14 +157,21 @@ class Bind9Backend(base.Backend): """ Update a DNS zone. - This will execute a rndc modzone as the zone + This will execute a rndc modzone if the zone already exists but masters might need to be refreshed. + Or, will create the zone if it does not exist. :param context: Security context information. :param zone: the DNS zone. """ LOG.debug('Update Zone') + if not self.get_zone(context, zone): + # If zone does not exist yet, create it + self.create_zone(context, zone) + # Newly created zone won't require an update + return + masters = [] for master in self.masters: host = master['host'] |