def dns_driver(self):
if self._dns_driver:
return self._dns_driver
if not cfg.CONF.external_dns_driver:
return
try:
self._dns_driver = driver.ExternalDNSService.get_instance()
LOG.debug("External DNS driver loaded: %s",
cfg.CONF.external_dns_driver)
return self._dns_driver
except ImportError:
LOG.exception("ImportError exception occurred while loading "
"the external DNS service driver")
raise dns_exc.ExternalDNSDriverNotFound(
driver=cfg.CONF.external_dns_driver)
def _get_dns_driver():
global DNS_DRIVER
if DNS_DRIVER:
return DNS_DRIVER
if not cfg.CONF.external_dns_driver:
return
try:
DNS_DRIVER = driver.ExternalDNSService.get_instance()
LOG.debug("External DNS driver loaded: %s",
cfg.CONF.external_dns_driver)
return DNS_DRIVER
except ImportError:
LOG.exception("ImportError exception occurred while loading "
"the external DNS service driver")
raise dns_exc.ExternalDNSDriverNotFound(
driver=cfg.CONF.external_dns_driver)