# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import kombu
from oslo_config import cfg
from oslo_messaging._drivers import common
from oslo_messaging import transport
import requests
from heat_integrationtests.common import test
from heat_integrationtests.functional import functional_base
BASIC_NOTIFICATIONS = [
'orchestration.stack.create.start',
'orchestration.stack.create.end',
'orchestration.stack.update.start',
'orchestration.stack.update.end',
'orchestration.stack.suspend.start',
'orchestration.stack.suspend.end',
'orchestration.stack.resume.start',
'orchestration.stack.resume.end',
'orchestration.stack.delete.start',
'orchestration.stack.delete.end'
]
ASG_NOTIFICATIONS = [
'orchestration.autoscaling.start',
'orchestration.autoscaling.end'
]
[docs]def get_url(conf):
conf = conf.oslo_messaging_rabbit
return 'amqp://%s:%s@%s:%s/' % (conf.rabbit_userid,
conf.rabbit_password,
conf.rabbit_host,
conf.rabbit_port)
[docs]class NotificationHandler(object):
def __init__(self, stack_id, events=None):
self._notifications = []
self.stack_id = stack_id
self.events = events
[docs] def process_message(self, body, message):
notification = common.deserialize_msg(body)
if notification['payload']['stack_name'] == self.stack_id:
if self.events is not None:
if notification['event_type'] in self.events:
self.notifications.append(notification['event_type'])
else:
self.notifications.append(notification['event_type'])
message.ack()
[docs] def clear(self):
self._notifications = []
@property
def notifications(self):
return self._notifications
[docs]class NotificationTest(functional_base.FunctionalTestsBase):
basic_template = '''
heat_template_version: 2013-05-23
resources:
random1:
type: OS::Heat::RandomString
'''
update_basic_template = '''
heat_template_version: 2013-05-23
resources:
random1:
type: OS::Heat::RandomString
random2:
type: OS::Heat::RandomString
'''
asg_template = '''
heat_template_version: 2013-05-23
resources:
asg:
type: OS::Heat::AutoScalingGroup
properties:
resource:
type: OS::Heat::RandomString
min_size: 1
desired_capacity: 2
max_size: 3
scale_up_policy:
type: OS::Heat::ScalingPolicy
properties:
adjustment_type: change_in_capacity
auto_scaling_group_id: {get_resource: asg}
cooldown: 0
scaling_adjustment: 1
scale_down_policy:
type: OS::Heat::ScalingPolicy
properties:
adjustment_type: change_in_capacity
auto_scaling_group_id: {get_resource: asg}
cooldown: 0
scaling_adjustment: '-1'
outputs:
scale_up_url:
value: {get_attr: [scale_up_policy, alarm_url]}
scale_dn_url:
value: {get_attr: [scale_down_policy, alarm_url]}
'''
[docs] def setUp(self):
super(NotificationTest, self).setUp()
self.exchange = kombu.Exchange('heat', 'topic', durable=False)
queue = kombu.Queue(exchange=self.exchange,
routing_key='notifications.info',
exclusive=True)
self.conn = kombu.Connection(get_url(
transport.get_transport(cfg.CONF).conf))
self.ch = self.conn.channel()
self.queue = queue(self.ch)
self.queue.declare()
[docs] def consume_events(self, handler, count):
self.conn.drain_events()
return len(handler.notifications) == count
[docs] def test_basic_notifications(self):
# disable cleanup so we can call _stack_delete() directly.
stack_identifier = self.stack_create(template=self.basic_template,
enable_cleanup=False)
self.update_stack(stack_identifier,
template=self.update_basic_template)
self.stack_suspend(stack_identifier)
self.stack_resume(stack_identifier)
self._stack_delete(stack_identifier)
handler = NotificationHandler(stack_identifier.split('/')[0])
with self.conn.Consumer(self.queue,
callbacks=[handler.process_message],
auto_declare=False):
try:
while True:
self.conn.drain_events(timeout=1)
except Exception:
pass
for n in BASIC_NOTIFICATIONS:
self.assertIn(n, handler.notifications)
[docs] def test_asg_notifications(self):
stack_identifier = self.stack_create(template=self.asg_template)
for output in self.client.stacks.get(stack_identifier).outputs:
if output['output_key'] == 'scale_dn_url':
scale_down_url = output['output_value']
else:
scale_up_url = output['output_value']
notifications = []
handler = NotificationHandler(stack_identifier.split('/')[0],
ASG_NOTIFICATIONS)
with self.conn.Consumer(self.queue,
callbacks=[handler.process_message],
auto_declare=False):
requests.post(scale_up_url, verify=self.verify_cert)
test.call_until_true(20, 0, self.consume_events, handler, 2)
notifications += handler.notifications
handler.clear()
requests.post(scale_down_url, verify=self.verify_cert)
test.call_until_true(20, 0, self.consume_events, handler, 2)
notifications += handler.notifications
self.assertEqual(2, notifications.count(ASG_NOTIFICATIONS[0]))
self.assertEqual(2, notifications.count(ASG_NOTIFICATIONS[1]))