deb-heat/heat/tests/test_loadbalancer.py
Michal Rostecki d9d68cf52b Novaclient v2 instead of v1_1
Nova API v1.1 is now deprecated and causes warnings.

Change-Id: Ib4b57a308b7637f4015a07b4e888ccd6347cb947
Closes-Bug: #1437158
2015-04-03 11:24:59 +02:00

363 lines
13 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 copy
import mock
from oslo_config import cfg
from heat.common import exception
from heat.common import template_format
from heat.engine.clients.os import nova
from heat.engine.resources.aws.lb import loadbalancer as lb
from heat.engine import rsrc_defn
from heat.tests import common
from heat.tests.nova import fakes as fakes_nova
from heat.tests import utils
lb_template = '''
{
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "LB Template",
"Parameters" : {
"KeyName" : {
"Description" : "KeyName",
"Type" : "String",
"Default" : "test"
},
"LbFlavor" : {
"Description" : "Flavor to use for LoadBalancer instance",
"Type": "String",
"Default": "m1.heat"
}
},
"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"
}]
}
}
}
}
'''
class LoadBalancerTest(common.HeatTestCase):
def setUp(self):
super(LoadBalancerTest, self).setUp()
self.fc = fakes_nova.FakeClient()
cfg.CONF.set_default('heat_waitcondition_server_url',
'http://server.test:8000/v1/waitcondition')
def test_loadbalancer(self):
t = template_format.parse(lb_template)
s = utils.parse_stack(t)
s.store()
resource_name = 'LoadBalancer'
lb_defn = s.t.resource_definitions(s)[resource_name]
rsrc = lb.LoadBalancer(resource_name, lb_defn, s)
nova.NovaClientPlugin._create = mock.Mock(return_value=self.fc)
initial_md = {'AWS::CloudFormation::Init':
{'config':
{'files':
{'/etc/haproxy/haproxy.cfg': {'content': 'initial'}}}}}
ha_cfg = '\n'.join(['\nglobal', ' daemon', ' maxconn 256',
' stats socket /tmp/.haproxy-stats',
'\ndefaults',
' mode http\n timeout connect 5000ms',
' timeout client 50000ms',
' timeout server 50000ms\n\nfrontend http',
' bind *:80\n default_backend servers',
'\nbackend servers\n balance roundrobin',
' option http-server-close',
' option forwardfor\n option httpchk',
'\n server server1 1.2.3.4:80',
' server server2 0.0.0.0:80\n'])
expected_md = {'AWS::CloudFormation::Init':
{'config':
{'files':
{'/etc/haproxy/haproxy.cfg': {
'content': ha_cfg}}}}}
md = mock.Mock()
md.metadata_get.return_value = copy.deepcopy(initial_md)
rsrc.nested = mock.Mock(return_value={'LB_instance': md})
prop_diff = {'Instances': ['WikiServerOne1', 'WikiServerOne2']}
props = copy.copy(rsrc.properties.data)
props.update(prop_diff)
update_defn = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(),
props)
rsrc.handle_update(update_defn, {}, prop_diff)
self.assertIsNone(rsrc.handle_update(rsrc.t, {}, {}))
md.metadata_get.assert_called_once_with()
md.metadata_set.assert_called_once_with(expected_md)
def test_loadbalancer_validate_hchk_good(self):
rsrc = self.setup_loadbalancer()
rsrc._parse_nested_stack = mock.Mock()
hc = {
'Target': 'HTTP:80/',
'HealthyThreshold': '3',
'UnhealthyThreshold': '5',
'Interval': '30',
'Timeout': '5'}
rsrc.t['Properties']['HealthCheck'] = hc
self.assertIsNone(rsrc.validate())
def test_loadbalancer_validate_hchk_int_gt_tmo(self):
rsrc = self.setup_loadbalancer()
rsrc._parse_nested_stack = mock.Mock()
hc = {
'Target': 'HTTP:80/',
'HealthyThreshold': '3',
'UnhealthyThreshold': '5',
'Interval': '30',
'Timeout': '35'}
rsrc.t['Properties']['HealthCheck'] = hc
self.assertEqual(
{'Error': 'Interval must be larger than Timeout'},
rsrc.validate())
def test_loadbalancer_validate_badtemplate(self):
cfg.CONF.set_override('loadbalancer_template', '/a/noexist/x.y')
rsrc = self.setup_loadbalancer()
self.assertRaises(exception.StackValidationFailed, rsrc.validate)
def setup_loadbalancer(self, include_magic=True):
template = template_format.parse(lb_template)
if not include_magic:
del template['Parameters']['KeyName']
del template['Parameters']['LbFlavor']
stack = utils.parse_stack(template)
resource_name = 'LoadBalancer'
lb_defn = stack.t.resource_definitions(stack)[resource_name]
return lb.LoadBalancer(resource_name, lb_defn, stack)
def test_loadbalancer_refid(self):
rsrc = self.setup_loadbalancer()
rsrc.resource_id = mock.Mock(return_value='not-this')
self.assertEqual('LoadBalancer', rsrc.FnGetRefId())
def test_loadbalancer_attr_dnsname(self):
rsrc = self.setup_loadbalancer()
rsrc.get_output = mock.Mock(return_value='1.3.5.7')
self.assertEqual('1.3.5.7', rsrc.FnGetAtt('DNSName'))
rsrc.get_output.assert_called_once_with('PublicIp')
def test_loadbalancer_attr_not_supported(self):
rsrc = self.setup_loadbalancer()
for attr in ['CanonicalHostedZoneName',
'CanonicalHostedZoneNameID',
'SourceSecurityGroup.GroupName',
'SourceSecurityGroup.OwnerAlias']:
self.assertEqual('', rsrc.FnGetAtt(attr))
def test_loadbalancer_attr_invalid(self):
rsrc = self.setup_loadbalancer()
self.assertRaises(exception.InvalidTemplateAttribute,
rsrc.FnGetAtt, 'Foo')
def test_child_params_without_key_name(self):
rsrc = self.setup_loadbalancer(False)
self.assertNotIn('KeyName', 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())
def test_child_params_with_flavor(self):
rsrc = self.setup_loadbalancer()
params = rsrc.child_params()
self.assertEqual('m1.heat', params['LbFlavor'])
def test_child_params_without_flavor(self):
rsrc = self.setup_loadbalancer(False)
params = rsrc.child_params()
self.assertNotIn('LbFlavor', params)
class HaProxyConfigTest(common.HeatTestCase):
def setUp(self):
super(HaProxyConfigTest, self).setUp()
stack = utils.parse_stack(template_format.parse(lb_template))
resource_name = 'LoadBalancer'
lb_defn = stack.t.resource_definitions(stack)[resource_name]
self.lb = lb.LoadBalancer(resource_name, lb_defn, stack)
self.lb.client_plugin = mock.Mock()
def _mock_props(self, props):
def get_props(name):
return props[name]
self.lb.properties = mock.MagicMock()
self.lb.properties.__getitem__.side_effect = get_props
def test_combined(self):
self.lb._haproxy_config_global = mock.Mock(return_value='one,')
self.lb._haproxy_config_frontend = mock.Mock(return_value='two,')
self.lb._haproxy_config_backend = mock.Mock(return_value='three,')
self.lb._haproxy_config_servers = mock.Mock(return_value='four')
actual = self.lb._haproxy_config([3, 5])
self.assertEqual('one,two,three,four\n', actual)
self.lb._haproxy_config_global.assert_called_once_with()
self.lb._haproxy_config_frontend.assert_called_once_with()
self.lb._haproxy_config_backend.assert_called_once_with()
self.lb._haproxy_config_servers.assert_called_once_with([3, 5])
def test_global(self):
exp = '''
global
daemon
maxconn 256
stats socket /tmp/.haproxy-stats
defaults
mode http
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
'''
actual = self.lb._haproxy_config_global()
self.assertEqual(exp, actual)
def test_frontend(self):
props = {'HealthCheck': {},
'Listeners': [{'LoadBalancerPort': 4014}]}
self._mock_props(props)
exp = '''
frontend http
bind *:4014
default_backend servers
'''
actual = self.lb._haproxy_config_frontend()
self.assertEqual(exp, actual)
def test_backend_with_timeout(self):
props = {'HealthCheck': {'Timeout': 43}}
self._mock_props(props)
actual = self.lb._haproxy_config_backend()
exp = '''
backend servers
balance roundrobin
option http-server-close
option forwardfor
option httpchk
timeout check 43s
'''
self.assertEqual(exp, actual)
def test_backend_no_timeout(self):
self._mock_props({'HealthCheck': None})
be = self.lb._haproxy_config_backend()
exp = '''
backend servers
balance roundrobin
option http-server-close
option forwardfor
option httpchk
'''
self.assertEqual(exp, be)
def test_servers_none(self):
props = {'HealthCheck': {},
'Listeners': [{'InstancePort': 1234}]}
self._mock_props(props)
actual = self.lb._haproxy_config_servers([])
exp = ''
self.assertEqual(exp, actual)
def test_servers_no_check(self):
props = {'HealthCheck': {},
'Listeners': [{'InstancePort': 4511}]}
self._mock_props(props)
def fake_to_ipaddr(inst):
return '192.168.1.%s' % inst
to_ip = self.lb.client_plugin.return_value.server_to_ipaddress
to_ip.side_effect = fake_to_ipaddr
actual = self.lb._haproxy_config_servers(range(1, 3))
exp = '''
server server1 192.168.1.1:4511
server server2 192.168.1.2:4511'''
self.assertEqual(exp.replace('\n', '', 1), actual)
def test_servers_servers_and_check(self):
props = {'HealthCheck': {'HealthyThreshold': 1,
'Interval': 2,
'Target': 'HTTP:80/',
'Timeout': 45,
'UnhealthyThreshold': 5
},
'Listeners': [{'InstancePort': 1234}]}
self._mock_props(props)
def fake_to_ipaddr(inst):
return '192.168.1.%s' % inst
to_ip = self.lb.client_plugin.return_value.server_to_ipaddress
to_ip.side_effect = fake_to_ipaddr
actual = self.lb._haproxy_config_servers(range(1, 3))
exp = '''
server server1 192.168.1.1:1234 check inter 2s fall 5 rise 1
server server2 192.168.1.2:1234 check inter 2s fall 5 rise 1'''
self.assertEqual(exp.replace('\n', '', 1), actual)