252 lines
11 KiB
Python
252 lines
11 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import mock
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from oslo_utils.fixture import uuidsentinel as uuids
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from nova import objects
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from nova.scheduler.filters import affinity_filter
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from nova import test
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from nova.tests.unit.scheduler import fakes
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class TestDifferentHostFilter(test.NoDBTestCase):
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def setUp(self):
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super(TestDifferentHostFilter, self).setUp()
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self.filt_cls = affinity_filter.DifferentHostFilter()
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def test_affinity_different_filter_passes(self):
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host = fakes.FakeHostState('host1', 'node1', {})
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inst1 = objects.Instance(uuid=uuids.instance)
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host.instances = {inst1.uuid: inst1}
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spec_obj = objects.RequestSpec(
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context=mock.sentinel.ctx,
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scheduler_hints=dict(different_host=['same']))
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self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
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def test_affinity_different_filter_fails(self):
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inst1 = objects.Instance(uuid=uuids.instance)
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host = fakes.FakeHostState('host1', 'node1', {})
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host.instances = {inst1.uuid: inst1}
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spec_obj = objects.RequestSpec(
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context=mock.sentinel.ctx,
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scheduler_hints=dict(different_host=[uuids.instance]))
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self.assertFalse(self.filt_cls.host_passes(host, spec_obj))
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def test_affinity_different_filter_handles_none(self):
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inst1 = objects.Instance(uuid=uuids.instance)
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host = fakes.FakeHostState('host1', 'node1', {})
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host.instances = {inst1.uuid: inst1}
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spec_obj = objects.RequestSpec(
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context=mock.sentinel.ctx,
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scheduler_hints=None)
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self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
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class TestSameHostFilter(test.NoDBTestCase):
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def setUp(self):
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super(TestSameHostFilter, self).setUp()
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self.filt_cls = affinity_filter.SameHostFilter()
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def test_affinity_same_filter_passes(self):
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inst1 = objects.Instance(uuid=uuids.instance)
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host = fakes.FakeHostState('host1', 'node1', {})
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host.instances = {inst1.uuid: inst1}
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spec_obj = objects.RequestSpec(
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context=mock.sentinel.ctx,
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scheduler_hints=dict(same_host=[uuids.instance]))
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self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
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def test_affinity_same_filter_no_list_passes(self):
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host = fakes.FakeHostState('host1', 'node1', {})
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host.instances = {}
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spec_obj = objects.RequestSpec(
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context=mock.sentinel.ctx,
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scheduler_hints=dict(same_host=['same']))
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self.assertFalse(self.filt_cls.host_passes(host, spec_obj))
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def test_affinity_same_filter_fails(self):
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inst1 = objects.Instance(uuid=uuids.instance)
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host = fakes.FakeHostState('host1', 'node1', {})
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host.instances = {inst1.uuid: inst1}
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spec_obj = objects.RequestSpec(
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context=mock.sentinel.ctx,
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scheduler_hints=dict(same_host=['same']))
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self.assertFalse(self.filt_cls.host_passes(host, spec_obj))
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def test_affinity_same_filter_handles_none(self):
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inst1 = objects.Instance(uuid=uuids.instance)
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host = fakes.FakeHostState('host1', 'node1', {})
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host.instances = {inst1.uuid: inst1}
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spec_obj = objects.RequestSpec(
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context=mock.sentinel.ctx,
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scheduler_hints=None)
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self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
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class TestSimpleCIDRAffinityFilter(test.NoDBTestCase):
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def setUp(self):
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super(TestSimpleCIDRAffinityFilter, self).setUp()
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self.filt_cls = affinity_filter.SimpleCIDRAffinityFilter()
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def test_affinity_simple_cidr_filter_passes(self):
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host = fakes.FakeHostState('host1', 'node1', {})
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host.host_ip = '10.8.1.1'
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affinity_ip = "10.8.1.100"
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spec_obj = objects.RequestSpec(
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context=mock.sentinel.ctx,
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scheduler_hints=dict(
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cidr=['/24'],
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build_near_host_ip=[affinity_ip]))
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self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
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def test_affinity_simple_cidr_filter_fails(self):
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host = fakes.FakeHostState('host1', 'node1', {})
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host.host_ip = '10.8.1.1'
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affinity_ip = "10.8.1.100"
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spec_obj = objects.RequestSpec(
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context=mock.sentinel.ctx,
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scheduler_hints=dict(
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cidr=['/32'],
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build_near_host_ip=[affinity_ip]))
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self.assertFalse(self.filt_cls.host_passes(host, spec_obj))
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def test_affinity_simple_cidr_filter_handles_none(self):
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host = fakes.FakeHostState('host1', 'node1', {})
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spec_obj = objects.RequestSpec(
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context=mock.sentinel.ctx,
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scheduler_hints=None)
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self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
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class TestGroupAffinityFilter(test.NoDBTestCase):
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def _test_group_anti_affinity_filter_passes(self, filt_cls, policy):
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host = fakes.FakeHostState('host1', 'node1', {})
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spec_obj = objects.RequestSpec(instance_group=None)
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self.assertTrue(filt_cls.host_passes(host, spec_obj))
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spec_obj = objects.RequestSpec(instance_group=objects.InstanceGroup(
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policy='affinity'))
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self.assertTrue(filt_cls.host_passes(host, spec_obj))
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spec_obj = objects.RequestSpec(instance_group=objects.InstanceGroup(
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policy=policy, members=[]), instance_uuid=uuids.fake)
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spec_obj.instance_group.hosts = []
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self.assertTrue(filt_cls.host_passes(host, spec_obj))
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spec_obj.instance_group.hosts = ['host2']
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self.assertTrue(filt_cls.host_passes(host, spec_obj))
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def test_group_anti_affinity_filter_passes(self):
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self._test_group_anti_affinity_filter_passes(
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affinity_filter.ServerGroupAntiAffinityFilter(),
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'anti-affinity')
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def _test_group_anti_affinity_filter_fails(self, filt_cls, policy):
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inst1 = objects.Instance(uuid=uuids.inst1)
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# We already have an inst1 on host1
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host = fakes.FakeHostState('host1', 'node1', {}, instances=[inst1])
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spec_obj = objects.RequestSpec(
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instance_group=objects.InstanceGroup(policy=policy,
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hosts=['host1'],
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members=[uuids.inst1],
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rules={}),
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instance_uuid=uuids.fake)
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self.assertFalse(filt_cls.host_passes(host, spec_obj))
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def test_group_anti_affinity_filter_fails(self):
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self._test_group_anti_affinity_filter_fails(
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affinity_filter.ServerGroupAntiAffinityFilter(),
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'anti-affinity')
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def _test_group_anti_affinity_filter_with_rules(self, rules, members):
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filt_cls = affinity_filter.ServerGroupAntiAffinityFilter()
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inst1 = objects.Instance(uuid=uuids.inst1)
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inst2 = objects.Instance(uuid=uuids.inst2)
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spec_obj = objects.RequestSpec(
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instance_group=objects.InstanceGroup(policy='anti-affinity',
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hosts=['host1'],
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members=members,
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rules=rules),
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instance_uuid=uuids.fake)
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# 2 instances on same host
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host_wit_2_inst = fakes.FakeHostState(
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'host1', 'node1', {}, instances=[inst1, inst2])
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return filt_cls.host_passes(host_wit_2_inst, spec_obj)
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def test_group_anti_affinity_filter_with_rules_fail(self):
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# the members of this group on the host already reach to max,
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# create one more servers would be failed.
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result = self._test_group_anti_affinity_filter_with_rules(
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{"max_server_per_host": 1}, [uuids.inst1])
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self.assertFalse(result)
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result = self._test_group_anti_affinity_filter_with_rules(
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{"max_server_per_host": 2}, [uuids.inst1, uuids.inst2])
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self.assertFalse(result)
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def test_group_anti_affinity_filter_with_rules_pass(self):
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result = self._test_group_anti_affinity_filter_with_rules(
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{"max_server_per_host": 1}, [])
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self.assertTrue(result)
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# we can have at most 2 members from the same group on the same host.
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result = self._test_group_anti_affinity_filter_with_rules(
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{"max_server_per_host": 2}, [uuids.inst1])
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self.assertTrue(result)
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def test_group_anti_affinity_filter_allows_instance_to_same_host(self):
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fake_uuid = uuids.fake
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mock_instance = objects.Instance(uuid=fake_uuid)
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host_state = fakes.FakeHostState('host1', 'node1',
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{}, instances=[mock_instance])
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spec_obj = objects.RequestSpec(instance_group=objects.InstanceGroup(
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policy='anti-affinity', hosts=['host1', 'host2'], members=[]),
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instance_uuid=mock_instance.uuid)
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self.assertTrue(affinity_filter.ServerGroupAntiAffinityFilter().
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host_passes(host_state, spec_obj))
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def _test_group_affinity_filter_passes(self, filt_cls, policy):
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host = fakes.FakeHostState('host1', 'node1', {})
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spec_obj = objects.RequestSpec(instance_group=None)
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self.assertTrue(filt_cls.host_passes(host, spec_obj))
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spec_obj = objects.RequestSpec(instance_group=objects.InstanceGroup(
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policies=['anti-affinity']))
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self.assertTrue(filt_cls.host_passes(host, spec_obj))
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spec_obj = objects.RequestSpec(instance_group=objects.InstanceGroup(
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policies=['affinity'],
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hosts=['host1']))
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self.assertTrue(filt_cls.host_passes(host, spec_obj))
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def test_group_affinity_filter_passes(self):
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self._test_group_affinity_filter_passes(
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affinity_filter.ServerGroupAffinityFilter(), 'affinity')
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def _test_group_affinity_filter_fails(self, filt_cls, policy):
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host = fakes.FakeHostState('host1', 'node1', {})
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spec_obj = objects.RequestSpec(instance_group=objects.InstanceGroup(
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policies=[policy],
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hosts=['host2']))
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self.assertFalse(filt_cls.host_passes(host, spec_obj))
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def test_group_affinity_filter_fails(self):
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self._test_group_affinity_filter_fails(
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affinity_filter.ServerGroupAffinityFilter(), 'affinity')
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