154 lines
6.7 KiB
Python
154 lines
6.7 KiB
Python
# Copyright 2016 IBM Corp.
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#
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# 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 time
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import fixtures
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import io
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import mock
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from nova import test
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from nova.tests import fixtures as nova_fixtures
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from nova.tests.fixtures import libvirt as fakelibvirt
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from nova.tests.functional import fixtures as func_fixtures
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from nova.virt.libvirt import guest as libvirt_guest
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class TestSerialConsoleLiveMigrate(test.TestCase):
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REQUIRES_LOCKING = True
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def setUp(self):
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super(TestSerialConsoleLiveMigrate, self).setUp()
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self.useFixture(nova_fixtures.RealPolicyFixture())
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self.useFixture(nova_fixtures.NeutronFixture(self))
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self.useFixture(nova_fixtures.GlanceFixture(self))
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self.useFixture(func_fixtures.PlacementFixture())
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api_fixture = self.useFixture(nova_fixtures.OSAPIFixture(
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api_version='v2.1'))
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# Replace libvirt with fakelibvirt
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self.useFixture(fixtures.MonkeyPatch(
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'nova.virt.libvirt.driver.libvirt',
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fakelibvirt))
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self.useFixture(fixtures.MonkeyPatch(
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'nova.virt.libvirt.host.libvirt',
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fakelibvirt))
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self.useFixture(fixtures.MonkeyPatch(
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'nova.virt.libvirt.guest.libvirt',
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fakelibvirt))
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self.useFixture(nova_fixtures.LibvirtFixture())
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self.admin_api = api_fixture.admin_api
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self.api = api_fixture.api
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self.flags(compute_driver='libvirt.LibvirtDriver')
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self.flags(enabled=True, group="serial_console")
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self.flags(enabled=False, group="vnc")
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self.flags(enabled=False, group="spice")
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self.start_service('conductor')
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self.start_service('scheduler')
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self.compute = self.start_service('compute', host='test_compute1')
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self.useFixture(nova_fixtures.CastAsCallFixture(self))
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self.image_id = self.api.get_images()[0]['id']
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self.flavor_id = self.api.get_flavors()[0]['id']
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@mock.patch.object(fakelibvirt.Domain, 'undefine')
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@mock.patch('nova.virt.libvirt.LibvirtDriver.get_volume_connector')
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@mock.patch('nova.virt.libvirt.guest.Guest.get_job_info')
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@mock.patch.object(fakelibvirt.Domain, 'migrateToURI3')
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@mock.patch('nova.virt.libvirt.host.Host.get_connection')
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@mock.patch('nova.virt.disk.api.get_disk_size', return_value=1024)
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@mock.patch('os.path.getsize', return_value=1024)
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@mock.patch('nova.conductor.tasks.live_migrate.LiveMigrationTask.'
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'_check_destination_is_not_source', return_value=False)
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@mock.patch('nova.virt.libvirt.LibvirtDriver._create_image',
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return_value=(False, False))
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@mock.patch('nova.virt.libvirt.LibvirtDriver._get_local_gb_info',
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return_value={'total': 128,
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'used': 44,
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'free': 84})
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@mock.patch('nova.virt.libvirt.driver.libvirt_utils.is_valid_hostname',
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return_value=True)
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@mock.patch('nova.virt.libvirt.driver.libvirt_utils.file_open',
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side_effect=[io.BytesIO(b''), io.BytesIO(b'')])
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def test_serial_console_live_migrate(self, mock_file_open,
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mock_valid_hostname,
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mock_get_fs_info,
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mock_create_image,
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mock_conductor_source_check,
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mock_path_get_size,
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mock_get_disk_size,
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mock_host_get_connection,
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mock_migrate_to_uri,
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mock_get_job_info,
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mock_get_volume_connector,
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mock_undefine):
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"""Regression test for bug #1595962.
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If the graphical consoles VNC and SPICE are disabled, the
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live-migration of an instance will result in an ERROR state.
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VNC and SPICE are usually disabled on IBM z systems platforms
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where graphical consoles are not available. The serial console
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is then enabled and VNC + SPICE are disabled.
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The error will be raised at
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https://opendev.org/openstack/nova/src/commit/
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4f33047d07f5a11b208c344fe206aba01cd8e6fe/
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nova/virt/libvirt/driver.py#L5842-L5852
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"""
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mock_get_job_info.return_value = libvirt_guest.JobInfo(
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type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED)
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fake_connection = fakelibvirt.Connection('qemu:///system',
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version=fakelibvirt.FAKE_LIBVIRT_VERSION,
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hv_version=fakelibvirt.FAKE_QEMU_VERSION)
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mock_host_get_connection.return_value = fake_connection
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# We invoke cleanup on source host first which will call undefine
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# method currently. Since in functional test we make all compute
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# services linked to the same connection, we need to mock the undefine
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# method to avoid triggering 'Domain not found' error in subsequent
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# rpc call post_live_migration_at_destination.
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mock_undefine.return_value = True
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server_attr = dict(name='server1',
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imageRef=self.image_id,
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flavorRef=self.flavor_id)
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server = self.api.post_server({'server': server_attr})
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server_id = server['id']
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self.wait_till_active_or_timeout(server_id)
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post = {"os-migrateLive": {
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"block_migration": False,
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"disk_over_commit": False,
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"host": "test_compute1"
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}}
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try:
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# This should succeed
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self.admin_api.post_server_action(server_id, post)
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self.wait_till_active_or_timeout(server_id)
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except Exception as ex:
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self.fail(ex.response.content)
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def wait_till_active_or_timeout(self, server_id):
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timeout = 0.0
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server = self.api.get_server(server_id)
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while server['status'] != "ACTIVE" and timeout < 10.0:
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time.sleep(.1)
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timeout += .1
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server = self.api.get_server(server_id)
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if server['status'] != "ACTIVE":
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self.fail("The server is not active after the timeout.")
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