def test_scale_vnf_scale_wait_failed_exception(self):
dummy_vnf_obj, vnf_scale = \
self._get_scaling_vnf('in')
self.scale_wait.side_effect = vnfm.VNFScaleWaitFailed(reason='test')
self.assertRaises(vnfm.VNFScaleWaitFailed,
self.vnfm_plugin.create_vnf_scale, self.context,
dummy_vnf_obj['id'], vnf_scale)
def scale_wait(self, context, plugin, auth_attr, policy, region_name,
last_event_id):
heatclient = hc.HeatClient(auth_attr, region_name)
# TODO(kanagaraj-manickam) make wait logic into separate utility method
# and make use of it here and other actions like create and delete
stack_retries = self.STACK_RETRIES
while (True):
try:
time.sleep(self.STACK_RETRY_WAIT)
stack_id = policy['instance_id']
policy_name = get_scaling_policy_name(
policy_name=policy['name'], action=policy['action'])
events = heatclient.resource_event_list(stack_id,
policy_name,
limit=1,
sort_dir='desc',
sort_keys='event_time')
if events[0].id != last_event_id:
if events[0].resource_status == 'SIGNAL_COMPLETE':
break
except Exception as e:
error_reason = _("VNF scaling failed for stack %(stack)s with "
"error %(error)s") % {
'stack': policy['instance_id'],
'error': str(e)
}
LOG.warning(error_reason)
raise vnfm.VNFScaleWaitFailed(vnf_id=policy['vnf']['id'],
reason=error_reason)
if stack_retries == 0:
metadata = heatclient.resource_metadata(stack_id, policy_name)
if not metadata['scaling_in_progress']:
error_reason = _('when signal occurred within cool down '
'window, no events generated from heat, '
'so ignore it')
LOG.warning(error_reason)
break
error_reason = _(
"VNF scaling failed to complete within %{wait}s seconds "
"while waiting for the stack %(stack)s to be "
"scaled.") % {
'stack': stack_id,
'wait': self.STACK_RETRIES * self.STACK_RETRY_WAIT
}
LOG.warning(error_reason)
raise vnfm.VNFScaleWaitFailed(vnf_id=policy['vnf']['id'],
reason=error_reason)
stack_retries -= 1
def _fill_scaling_group_name():
vnf = policy['vnf']
scaling_group_names = vnf['attributes']['scaling_group_names']
policy['group_name'] = jsonutils.loads(scaling_group_names)[
policy['name']]
_fill_scaling_group_name()
mgmt_ips = self._find_mgmt_ips_from_groups(heatclient,
policy['instance_id'],
[policy['group_name']])
return jsonutils.dumps(mgmt_ips)
