deb-heat/heat/tests/test_loadbalancer.py

276 lines
9.2 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 re
import mock
import mox
from oslo.config import cfg
from heat.common import exception
from heat.common import template_format
from heat.engine import clients
from heat.engine.resource import Metadata
from heat.engine.resources import instance
from heat.engine.resources import loadbalancer as lb
from heat.engine.resources import wait_condition as wc
from heat.engine import scheduler
from heat.engine import stack_user
from heat.tests.common import HeatTestCase
from heat.tests import fakes as test_fakes
from heat.tests import utils
from heat.tests.v1_1 import fakes
lb_template = '''
{
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "LB Template",
"Parameters" : {
"KeyName" : {
"Description" : "KeyName",
"Type" : "String",
"Default" : "test"
}
},
"Resources": {
"WikiServerOne": {
"Type": "AWS::EC2::Instance",
"Properties": {
"ImageId": "F17-x86_64-gold",
"InstanceType" : "m1.large",
"KeyName" : "test",
"UserData" : "some data"
}
},
"LoadBalancer" : {
"Type" : "AWS::ElasticLoadBalancing::LoadBalancer",
"Properties" : {
"AvailabilityZones" : ["nova"],
"Instances" : [{"Ref": "WikiServerOne"}],
"Listeners" : [ {
"LoadBalancerPort" : "80",
"InstancePort" : "80",
"Protocol" : "HTTP"
}]
}
}
}
}
'''
lb_template_nokey = '''
{
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "LB Template",
"Resources": {
"WikiServerOne": {
"Type": "AWS::EC2::Instance",
"Properties": {
"ImageId": "F17-x86_64-gold",
"InstanceType" : "m1.large",
"UserData" : "some data"
}
},
"LoadBalancer" : {
"Type" : "AWS::ElasticLoadBalancing::LoadBalancer",
"Properties" : {
"AvailabilityZones" : ["nova"],
"Instances" : [{"Ref": "WikiServerOne"}],
"Listeners" : [ {
"LoadBalancerPort" : "80",
"InstancePort" : "80",
"Protocol" : "HTTP"
}]
}
}
}
}
'''
class LoadBalancerTest(HeatTestCase):
def setUp(self):
super(LoadBalancerTest, self).setUp()
self.fc = fakes.FakeClient()
self.m.StubOutWithMock(clients.OpenStackClients, 'nova')
self.m.StubOutWithMock(self.fc.servers, 'create')
self.m.StubOutWithMock(Metadata, '__set__')
self.fkc = test_fakes.FakeKeystoneClient(
username='test_stack.CfnLBUser')
cfg.CONF.set_default('heat_waitcondition_server_url',
'http://server.test:8000/v1/waitcondition')
utils.setup_dummy_db()
def create_loadbalancer(self, t, stack, resource_name):
rsrc = lb.LoadBalancer(resource_name,
t['Resources'][resource_name],
stack)
self.assertIsNone(rsrc.validate())
scheduler.TaskRunner(rsrc.create)()
self.assertEqual((rsrc.CREATE, rsrc.COMPLETE), rsrc.state)
return rsrc
def _create_stubs(self, key_name='test', stub_meta=True):
self.m.StubOutWithMock(stack_user.StackUser, 'keystone')
stack_user.StackUser.keystone().MultipleTimes().AndReturn(self.fkc)
server_name = utils.PhysName(
utils.PhysName('test_stack', 'LoadBalancer'),
'LB_instance',
limit=instance.Instance.physical_resource_name_limit)
clients.OpenStackClients.nova(
"compute").MultipleTimes().AndReturn(self.fc)
clients.OpenStackClients.nova().MultipleTimes().AndReturn(self.fc)
self.fc.servers.create(
flavor=2, image=746, key_name=key_name,
meta=None, nics=None, name=server_name,
scheduler_hints=None, userdata=mox.IgnoreArg(),
security_groups=None, availability_zone=None).AndReturn(
self.fc.servers.list()[1])
if stub_meta:
Metadata.__set__(mox.IgnoreArg(),
mox.IgnoreArg()).AndReturn(None)
self.m.StubOutWithMock(wc.WaitConditionHandle, 'get_status')
wc.WaitConditionHandle.get_status().AndReturn(['SUCCESS'])
def test_loadbalancer(self):
self._create_stubs()
self.m.ReplayAll()
t = template_format.parse(lb_template)
s = utils.parse_stack(t)
s.store()
rsrc = self.create_loadbalancer(t, s, 'LoadBalancer')
hc = {
'Target': 'HTTP:80/',
'HealthyThreshold': '3',
'UnhealthyThreshold': '5',
'Interval': '30',
'Timeout': '5'}
rsrc.t['Properties']['HealthCheck'] = hc
self.assertIsNone(rsrc.validate())
hc['Timeout'] = 35
self.assertEqual(
{'Error': 'Interval must be larger than Timeout'},
rsrc.validate())
hc['Timeout'] = 5
self.assertEqual('LoadBalancer', rsrc.FnGetRefId())
templ = template_format.parse(lb.lb_template_default)
ha_cfg = rsrc._haproxy_config(templ, rsrc.properties['Instances'])
self.assertRegexpMatches(ha_cfg, 'bind \*:80')
self.assertRegexpMatches(ha_cfg, 'server server1 1\.2\.3\.4:80 '
'check inter 30s fall 5 rise 3')
self.assertRegexpMatches(ha_cfg, 'timeout check 5s')
id_list = []
for inst_name in ['WikiServerOne1', 'WikiServerOne2']:
inst = instance.Instance(inst_name,
s.t['Resources']['WikiServerOne'],
s)
id_list.append(inst.FnGetRefId())
rsrc.handle_update(rsrc.json_snippet, {}, {'Instances': id_list})
self.assertEqual('4.5.6.7', rsrc.FnGetAtt('DNSName'))
self.assertEqual('', rsrc.FnGetAtt('SourceSecurityGroup.GroupName'))
self.assertRaises(exception.InvalidTemplateAttribute,
rsrc.FnGetAtt, 'Foo')
self.assertIsNone(rsrc.handle_update({}, {}, {}))
self.m.VerifyAll()
def test_loadbalancer_nokey(self):
self._create_stubs(key_name=None, stub_meta=False)
self.m.ReplayAll()
t = template_format.parse(lb_template_nokey)
s = utils.parse_stack(t)
s.store()
rsrc = self.create_loadbalancer(t, s, 'LoadBalancer')
self.assertEqual('LoadBalancer', rsrc.name)
self.m.VerifyAll()
def assertRegexpMatches(self, text, expected_regexp, msg=None):
"""Fail the test unless the text matches the regular expression."""
if isinstance(expected_regexp, basestring):
expected_regexp = re.compile(expected_regexp)
if not expected_regexp.search(text):
msg = msg or "Regexp didn't match"
msg = '%s: %r not found in %r' % (msg,
expected_regexp.pattern, text)
raise self.failureException(msg)
def test_loadbalancer_validate_badtemplate(self):
cfg.CONF.set_override('loadbalancer_template', '/a/noexist/x.y')
t = template_format.parse(lb_template)
s = utils.parse_stack(t)
s.store()
rsrc = lb.LoadBalancer('LoadBalancer',
t['Resources']['LoadBalancer'],
s)
self.assertRaises(exception.StackValidationFailed, rsrc.validate)
def setup_loadbalancer(self, include_keyname=True):
template = template_format.parse(lb_template)
if not include_keyname:
del template['Parameters']['KeyName']
stack = utils.parse_stack(template)
resource_name = 'LoadBalancer'
lb_json = template['Resources'][resource_name]
return lb.LoadBalancer(resource_name, lb_json, stack)
def test_child_params_without_key_name(self):
rsrc = self.setup_loadbalancer(False)
self.assertEqual({}, rsrc.child_params())
def test_child_params_with_key_name(self):
rsrc = self.setup_loadbalancer()
params = rsrc.child_params()
self.assertEqual('test', params['KeyName'])
def test_child_template_without_key_name(self):
rsrc = self.setup_loadbalancer(False)
parsed_template = {
'Resources': {'LB_instance': {'Properties': {'KeyName': 'foo'}}},
'Parameters': {'KeyName': 'foo'}
}
rsrc.get_parsed_template = mock.Mock(return_value=parsed_template)
tmpl = rsrc.child_template()
self.assertNotIn('KeyName', tmpl['Parameters'])
self.assertNotIn('KeyName',
tmpl['Resources']['LB_instance']['Properties'])
def test_child_template_with_key_name(self):
rsrc = self.setup_loadbalancer()
rsrc.get_parsed_template = mock.Mock(return_value='foo')
self.assertEqual('foo', rsrc.child_template())