/usr/lib/python2.7/dist-packages/neutron_lbaas/tests/unit/test_agent_scheduler.py is in python-neutron-lbaas 1:9.1.0-2.
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# Copyright 2015 Rackspace
#
# 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
from datetime import datetime
import mock
from neutron.api import extensions
from neutron.api.v2 import attributes
from neutron import context
from neutron.db import agents_db
from neutron.extensions import agent
from neutron import manager
from neutron.plugins.common import constants as plugin_const
from neutron.tests.common import helpers
from neutron.tests.unit.api import test_extensions
from neutron.tests.unit.db import test_agentschedulers_db
import neutron.tests.unit.extensions
from neutron.tests.unit.extensions import test_agent
from neutron_lib import constants as n_constants
import six
from webob import exc
from neutron_lbaas.drivers.haproxy import plugin_driver
from neutron_lbaas.extensions import lbaas_agentschedulerv2
from neutron_lbaas.services.loadbalancer import constants as lb_const
from neutron_lbaas.tests import base
from neutron_lbaas.tests.unit.db.loadbalancer import test_db_loadbalancerv2
LBAAS_HOSTA = 'hosta'
extensions_path = ':'.join(neutron.tests.unit.extensions.__path__)
class AgentSchedulerTestMixIn(test_agentschedulers_db.AgentSchedulerTestMixIn):
def _list_loadbalancers_hosted_by_agent(
self, agent_id, expected_code=exc.HTTPOk.code, admin_context=True):
path = "/agents/%s/%s.%s" % (agent_id,
lbaas_agentschedulerv2.LOADBALANCERS,
self.fmt)
return self._request_list(path, expected_code=expected_code,
admin_context=admin_context)
def _get_lbaas_agent_hosting_loadbalancer(self, loadbalancer_id,
expected_code=exc.HTTPOk.code,
admin_context=True):
path = "/lbaas/loadbalancers/%s/%s.%s" % (loadbalancer_id,
lbaas_agentschedulerv2
.LOADBALANCER_AGENT,
self.fmt)
return self._request_list(path, expected_code=expected_code,
admin_context=admin_context)
class LBaaSAgentSchedulerTestCase(test_agent.AgentDBTestMixIn,
AgentSchedulerTestMixIn,
test_db_loadbalancerv2.LbaasTestMixin,
base.NeutronDbPluginV2TestCase):
fmt = 'json'
plugin_str = 'neutron.plugins.ml2.plugin.Ml2Plugin'
def _register_agent_states(self, lbaas_agents=False):
res = super(LBaaSAgentSchedulerTestCase, self)._register_agent_states(
lbaas_agents=lbaas_agents)
if lbaas_agents:
lbaas_hosta = {
'binary': 'neutron-loadbalancer-agent',
'host': test_agent.LBAAS_HOSTA,
'topic': 'LOADBALANCER_AGENT',
'configurations': {'device_drivers': [
plugin_driver.HaproxyOnHostPluginDriver.device_driver]},
'agent_type': lb_const.AGENT_TYPE_LOADBALANCERV2}
lbaas_hostb = copy.deepcopy(lbaas_hosta)
lbaas_hostb['host'] = test_agent.LBAAS_HOSTB
callback = agents_db.AgentExtRpcCallback()
callback.report_state(self.adminContext,
agent_state={'agent_state': lbaas_hosta},
time=datetime.utcnow().isoformat())
callback.report_state(self.adminContext,
agent_state={'agent_state': lbaas_hostb},
time=datetime.utcnow().isoformat())
res += [lbaas_hosta, lbaas_hostb]
return res
def setUp(self):
# Save the global RESOURCE_ATTRIBUTE_MAP
self.saved_attr_map = {}
for res, attrs in six.iteritems(attributes.RESOURCE_ATTRIBUTE_MAP):
self.saved_attr_map[res] = attrs.copy()
service_plugins = {
'lb_plugin_name': test_db_loadbalancerv2.DB_LB_PLUGIN_CLASS}
# default provider should support agent scheduling
self.set_override(
[('LOADBALANCERV2:lbaas:neutron_lbaas.drivers.haproxy.'
'plugin_driver.HaproxyOnHostPluginDriver:default')])
super(LBaaSAgentSchedulerTestCase, self).setUp(
self.plugin_str, service_plugins=service_plugins)
ext_mgr = extensions.PluginAwareExtensionManager.get_instance()
self.ext_api = test_extensions.setup_extensions_middleware(ext_mgr)
self.adminContext = context.get_admin_context()
# Add the resources to the global attribute map
# This is done here as the setup process won't
# initialize the main API router which extends
# the global attribute map
attributes.RESOURCE_ATTRIBUTE_MAP.update(
agent.RESOURCE_ATTRIBUTE_MAP)
self.lbaas_plugin = manager.NeutronManager.get_service_plugins()[
plugin_const.LOADBALANCERV2]
self.core_plugin = manager.NeutronManager.get_plugin()
self.addCleanup(self.restore_attribute_map)
def restore_attribute_map(self):
# Restore the original RESOURCE_ATTRIBUTE_MAP
attributes.RESOURCE_ATTRIBUTE_MAP = self.saved_attr_map
def test_report_states(self):
self._register_agent_states(lbaas_agents=True)
agents = self._list_agents()
self.assertEqual(8, len(agents['agents']))
def test_loadbalancer_scheduling_on_loadbalancer_creation(self):
self._register_agent_states(lbaas_agents=True)
with self.loadbalancer() as loadbalancer:
lbaas_agent = self._get_lbaas_agent_hosting_loadbalancer(
loadbalancer['loadbalancer']['id'])
self.assertIsNotNone(lbaas_agent)
self.assertEqual(lb_const.AGENT_TYPE_LOADBALANCERV2,
lbaas_agent['agent']['agent_type'])
loadbalancers = self._list_loadbalancers_hosted_by_agent(
lbaas_agent['agent']['id'])
self.assertEqual(1, len(loadbalancers['loadbalancers']))
self.assertEqual(loadbalancer['loadbalancer'],
loadbalancers['loadbalancers'][0])
self.lbaas_plugin.db.update_loadbalancer_provisioning_status(
self.adminContext, loadbalancer['loadbalancer']['id']
)
def test_schedule_loadbalancer_with_disabled_agent(self):
lbaas_hosta = {
'binary': 'neutron-loadbalancer-agent',
'host': LBAAS_HOSTA,
'topic': 'LOADBALANCER_AGENT',
'configurations': {'device_drivers': [
plugin_driver.HaproxyOnHostPluginDriver.device_driver
]},
'agent_type': lb_const.AGENT_TYPE_LOADBALANCERV2}
helpers._register_agent(lbaas_hosta)
with self.loadbalancer() as loadbalancer:
lbaas_agent = self._get_lbaas_agent_hosting_loadbalancer(
loadbalancer['loadbalancer']['id'])
self.assertIsNotNone(lbaas_agent)
self.lbaas_plugin.db.update_loadbalancer_provisioning_status(
self.adminContext, loadbalancer['loadbalancer']['id']
)
agents = self._list_agents()
self._disable_agent(agents['agents'][0]['id'])
subnet = self.core_plugin.get_subnets(self.adminContext)[0]
lb = {
'loadbalancer': {
'vip_subnet_id': subnet['id'],
'provider': 'lbaas',
'flavor_id': n_constants.ATTR_NOT_SPECIFIED,
'vip_address': n_constants.ATTR_NOT_SPECIFIED,
'admin_state_up': True,
'tenant_id': self._tenant_id,
'listeners': []}}
self.assertRaises(lbaas_agentschedulerv2.NoEligibleLbaasAgent,
self.lbaas_plugin.create_loadbalancer,
self.adminContext, lb)
def test_schedule_loadbalancer_with_down_agent(self):
lbaas_hosta = {
'binary': 'neutron-loadbalancer-agent',
'host': LBAAS_HOSTA,
'topic': 'LOADBALANCER_AGENT',
'configurations': {'device_drivers': [
plugin_driver.HaproxyOnHostPluginDriver.device_driver
]},
'agent_type': lb_const.AGENT_TYPE_LOADBALANCERV2}
helpers._register_agent(lbaas_hosta)
is_agent_down_str = 'neutron.db.agents_db.AgentDbMixin.is_agent_down'
with mock.patch(is_agent_down_str) as mock_is_agent_down:
mock_is_agent_down.return_value = False
with self.loadbalancer() as loadbalancer:
lbaas_agent = self._get_lbaas_agent_hosting_loadbalancer(
loadbalancer['loadbalancer']['id'])
self.lbaas_plugin.db.update_loadbalancer_provisioning_status(
self.adminContext, loadbalancer['loadbalancer']['id']
)
self.assertIsNotNone(lbaas_agent)
with mock.patch(is_agent_down_str) as mock_is_agent_down:
mock_is_agent_down.return_value = True
subnet = self.core_plugin.get_subnets(self.adminContext)[0]
lb = {
'loadbalancer': {
'vip_subnet_id': subnet['id'],
'provider': 'lbaas',
'flavor_id': n_constants.ATTR_NOT_SPECIFIED,
'vip_address': n_constants.ATTR_NOT_SPECIFIED,
'admin_state_up': True,
'tenant_id': self._tenant_id,
'listeners': []}}
self.assertRaises(lbaas_agentschedulerv2.NoEligibleLbaasAgent,
self.lbaas_plugin.create_loadbalancer,
self.adminContext, lb)
def test_loadbalancer_unscheduling_on_loadbalancer_deletion(self):
self._register_agent_states(lbaas_agents=True)
with self.loadbalancer(no_delete=True) as loadbalancer:
lb_id = loadbalancer['loadbalancer']['id']
lbaas_agent = self._get_lbaas_agent_hosting_loadbalancer(lb_id)
self.assertIsNotNone(lbaas_agent)
self.assertEqual(lb_const.AGENT_TYPE_LOADBALANCERV2,
lbaas_agent['agent']['agent_type'])
loadbalancers = self._list_loadbalancers_hosted_by_agent(
lbaas_agent['agent']['id'])
self.assertEqual(1, len(loadbalancers['loadbalancers']))
self.assertEqual(loadbalancer['loadbalancer'],
loadbalancers['loadbalancers'][0])
self.lbaas_plugin.db.update_loadbalancer_provisioning_status(
self.adminContext, lb_id
)
req = self.new_delete_request('loadbalancers', lb_id)
res = req.get_response(self.ext_api)
self.assertEqual(exc.HTTPNoContent.code, res.status_int)
loadbalancers = self._list_loadbalancers_hosted_by_agent(
lbaas_agent['agent']['id'])
self.assertEqual(0, len(loadbalancers['loadbalancers']))
def test_loadbalancer_scheduling_non_admin_access(self):
self._register_agent_states(lbaas_agents=True)
with self.loadbalancer() as loadbalancer:
self._get_lbaas_agent_hosting_loadbalancer(
loadbalancer['loadbalancer']['id'],
expected_code=exc.HTTPForbidden.code,
admin_context=False)
self._list_loadbalancers_hosted_by_agent(
'fake_id',
expected_code=exc.HTTPForbidden.code,
admin_context=False)
self.lbaas_plugin.db.update_loadbalancer_provisioning_status(
self.adminContext, loadbalancer['loadbalancer']['id']
)
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