heat/heat_integrationtests/scenario/test_autoscaling_lb.py
tyagi 96ef3fc4ca Heat integration tests failing against https endpoints
Provide ca_file option to pass the ca certificate to verify https
connection. Also pass verify parameter to the test cases which
directly call requests library methods.

Change-Id: I4a81047136d6a64b151180e95c254edea8165349
Closes-Bug: #1553898
2016-03-07 22:16:00 +05:30

119 lines
4.6 KiB
Python

#
# 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 time
import requests
from heat_integrationtests.common import test
from heat_integrationtests.scenario import scenario_base
class AutoscalingLoadBalancerTest(scenario_base.ScenarioTestsBase):
"""The class is responsible for testing ASG + LBv1 scenario.
The very common use case tested is an autoscaling group
of some web application servers behind a loadbalancer.
"""
def setUp(self):
super(AutoscalingLoadBalancerTest, self).setUp()
self.template_name = 'test_autoscaling_lb_neutron.yaml'
self.app_server_template_name = 'app_server_neutron.yaml'
self.webapp_template_name = 'netcat-webapp.yaml'
if not self.is_network_extension_supported('lbaas'):
self.skipTest('LBaas v1 extension not available, skipping')
def check_num_responses(self, url, expected_num, retries=10):
resp = set()
for count in range(retries):
time.sleep(1)
try:
r = requests.get(url, verify=self.verify_cert)
except requests.exceptions.ConnectionError:
# The LB may not be up yet, let's retry
continue
# skip unsuccessful requests
if r.status_code == 200:
resp.add(r.text)
self.assertEqual(expected_num, len(resp))
def autoscale_complete(self, stack_id, expected_num):
res_list = self.client.resources.list(stack_id)
all_res_complete = all(res.resource_status in ('UPDATE_COMPLETE',
'CREATE_COMPLETE')
for res in res_list)
all_res = len(res_list) == expected_num
return all_res and all_res_complete
def test_autoscaling_loadbalancer_neutron(self):
"""Check work of AutoScaing and Neutron LBaaS v1 resource in Heat.
The scenario is the following:
1. Launch a stack with a load balancer and autoscaling group
of one server, wait until stack create is complete.
2. Check that there is only one distinctive response from
loadbalanced IP.
3. Signal the scale_up policy, wait until all resources in
autoscaling group are complete.
4. Check that now there are two distinctive responses from
loadbalanced IP.
"""
parameters = {
'flavor': self.conf.minimal_instance_type,
'image': self.conf.minimal_image_ref,
'net': self.conf.fixed_network_name,
'subnet': self.conf.fixed_subnet_name,
'public_net': self.conf.floating_network_name,
'app_port': 8080,
'lb_port': 80,
'timeout': 600
}
app_server_template = self._load_template(
__file__, self.app_server_template_name, self.sub_dir
)
webapp_template = self._load_template(
__file__, self.webapp_template_name, self.sub_dir
)
files = {'appserver.yaml': app_server_template,
'webapp.yaml': webapp_template}
env = {'resource_registry':
{'OS::Test::NeutronAppServer': 'appserver.yaml',
'OS::Test::WebAppConfig': 'webapp.yaml'}}
# Launch stack
sid = self.launch_stack(
template_name=self.template_name,
parameters=parameters,
files=files,
environment=env
)
stack = self.client.stacks.get(sid)
lb_url = self._stack_output(stack, 'lburl')
# Check number of distinctive responces, must be 1
self.check_num_responses(lb_url, 1)
# Signal the scaling hook
self.client.resources.signal(sid, 'scale_up')
# Wait for AutoScalingGroup update to finish
asg = self.client.resources.get(sid, 'asg')
test.call_until_true(self.conf.build_timeout,
self.conf.build_interval,
self.autoscale_complete,
asg.physical_resource_id, 2)
# Check number of distinctive responses, must now be 2
self.check_num_responses(lb_url, 2)