463 lines
20 KiB
Python
463 lines
20 KiB
Python
# Copyright 2013 IBM Corp.
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# All Rights Reserved.
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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 testtools
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from tempest.api.compute import base
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from tempest.common import compute
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from tempest.common import utils
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from tempest.common.utils.linux import remote_client
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from tempest.common import waiters
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from tempest import config
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from tempest.lib import decorators
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CONF = config.CONF
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class BaseAttachVolumeTest(base.BaseV2ComputeTest):
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"""Base class for the attach volume tests in this module."""
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create_default_network = True
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@classmethod
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def skip_checks(cls):
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super(BaseAttachVolumeTest, cls).skip_checks()
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if not CONF.service_available.cinder:
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skip_msg = ("%s skipped as Cinder is not available" % cls.__name__)
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raise cls.skipException(skip_msg)
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@classmethod
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def setup_credentials(cls):
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cls.prepare_instance_network()
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super(BaseAttachVolumeTest, cls).setup_credentials()
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def _create_server(self):
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# Start a server and wait for it to become ready
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validation_resources = self.get_test_validation_resources(
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self.os_primary)
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server = self.create_test_server(
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validatable=True,
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validation_resources=validation_resources,
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wait_until='ACTIVE',
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adminPass=self.image_ssh_password)
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self.addCleanup(self.delete_server, server['id'])
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# Record addresses so that we can ssh later
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server['addresses'] = self.servers_client.list_addresses(
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server['id'])['addresses']
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return server, validation_resources
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class AttachVolumeTestJSON(BaseAttachVolumeTest):
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@decorators.idempotent_id('52e9045a-e90d-4c0d-9087-79d657faffff')
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# This test is conditionally marked slow if SSH validation is enabled.
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@decorators.attr(type='slow', condition=CONF.validation.run_validation)
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def test_attach_detach_volume(self):
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# Stop and Start a server with an attached volume, ensuring that
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# the volume remains attached.
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server, validation_resources = self._create_server()
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# NOTE(andreaf) Create one remote client used throughout the test.
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if CONF.validation.run_validation:
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linux_client = remote_client.RemoteClient(
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self.get_server_ip(server, validation_resources),
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self.image_ssh_user,
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self.image_ssh_password,
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validation_resources['keypair']['private_key'],
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server=server,
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servers_client=self.servers_client)
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# NOTE(andreaf) We need to ensure the ssh key has been
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# injected in the guest before we power cycle
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linux_client.validate_authentication()
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disks_before_attach = linux_client.count_disks()
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volume = self.create_volume()
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# NOTE: As of the 12.0.0 Liberty release, the Nova libvirt driver
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# no longer honors a user-supplied device name, and there can be
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# a mismatch between libvirt provide disk name and actual disk name
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# on instance, hence we no longer validate this test with the supplied
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# device name rather we count number of disk before attach
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# detach to validate the testcase.
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attachment = self.attach_volume(server, volume)
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self.servers_client.stop_server(server['id'])
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waiters.wait_for_server_status(self.servers_client, server['id'],
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'SHUTOFF')
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self.servers_client.start_server(server['id'])
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waiters.wait_for_server_status(self.servers_client, server['id'],
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'ACTIVE')
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if CONF.validation.run_validation:
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disks_after_attach = linux_client.count_disks()
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self.assertGreater(disks_after_attach, disks_before_attach)
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self.servers_client.detach_volume(server['id'], attachment['volumeId'])
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waiters.wait_for_volume_resource_status(
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self.volumes_client, attachment['volumeId'], 'available')
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self.servers_client.stop_server(server['id'])
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waiters.wait_for_server_status(self.servers_client, server['id'],
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'SHUTOFF')
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self.servers_client.start_server(server['id'])
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waiters.wait_for_server_status(self.servers_client, server['id'],
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'ACTIVE')
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if CONF.validation.run_validation:
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disks_after_detach = linux_client.count_disks()
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self.assertEqual(disks_before_attach, disks_after_detach)
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@decorators.idempotent_id('7fa563fe-f0f7-43eb-9e22-a1ece036b513')
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def test_list_get_volume_attachments(self):
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# List volume attachment of the server
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server, validation_resources = self._create_server()
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volume_1st = self.create_volume()
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attachment_1st = self.attach_volume(server, volume_1st)
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body = self.servers_client.list_volume_attachments(
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server['id'])['volumeAttachments']
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self.assertEqual(1, len(body))
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self.assertIn(attachment_1st, body)
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# Get volume attachment of the server
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body = self.servers_client.show_volume_attachment(
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server['id'],
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attachment_1st['id'])['volumeAttachment']
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self.assertEqual(server['id'], body['serverId'])
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self.assertEqual(volume_1st['id'], body['volumeId'])
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self.assertEqual(attachment_1st['id'], body['id'])
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# attach one more volume to server
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volume_2nd = self.create_volume()
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attachment_2nd = self.attach_volume(server, volume_2nd)
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body = self.servers_client.list_volume_attachments(
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server['id'])['volumeAttachments']
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self.assertEqual(2, len(body))
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if CONF.validation.run_validation:
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linux_client = remote_client.RemoteClient(
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self.get_server_ip(server, validation_resources),
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self.image_ssh_user,
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self.image_ssh_password,
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validation_resources['keypair']['private_key'],
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server=server,
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servers_client=self.servers_client)
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linux_client.validate_authentication()
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for attachment in [attachment_1st, attachment_2nd]:
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body = self.servers_client.show_volume_attachment(
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server['id'], attachment['id'])['volumeAttachment']
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self.assertEqual(server['id'], body['serverId'])
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self.assertEqual(attachment['volumeId'], body['volumeId'])
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self.assertEqual(attachment['id'], body['id'])
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self.servers_client.detach_volume(server['id'],
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attachment['volumeId'])
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waiters.wait_for_volume_resource_status(
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self.volumes_client, attachment['volumeId'], 'available')
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class AttachVolumeShelveTestJSON(BaseAttachVolumeTest):
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"""Testing volume with shelved instance.
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This test checks the attaching and detaching volumes from
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a shelved or shelved offload instance.
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Note that these are uncommon scenarios until blueprint detach-boot-volume
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is implemented in the compute service.
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"""
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min_microversion = '2.20'
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max_microversion = 'latest'
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@classmethod
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def skip_checks(cls):
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super(AttachVolumeShelveTestJSON, cls).skip_checks()
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if not CONF.compute_feature_enabled.shelve:
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raise cls.skipException('Shelve is not available.')
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def _count_volumes(self, server, validation_resources):
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# Count number of volumes on an instance
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volumes = 0
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if CONF.validation.run_validation:
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linux_client = remote_client.RemoteClient(
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self.get_server_ip(server, validation_resources),
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self.image_ssh_user,
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self.image_ssh_password,
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validation_resources['keypair']['private_key'],
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server=server,
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servers_client=self.servers_client)
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command = 'grep -c -E [vs]d.$ /proc/partitions'
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volumes = int(linux_client.exec_command(command).strip())
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return volumes
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def _shelve_server(self, server, validation_resources):
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# NOTE(andreaf) If we are going to shelve a server, we should
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# check first whether the server is ssh-able. Otherwise we
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# won't be able to distinguish failures introduced by shelve
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# from pre-existing ones. Also it's good to wait for cloud-init
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# to be done and sshd server to be running before shelving to
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# avoid breaking the VM
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if CONF.validation.run_validation:
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linux_client = remote_client.RemoteClient(
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self.get_server_ip(server, validation_resources),
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self.image_ssh_user,
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self.image_ssh_password,
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validation_resources['keypair']['private_key'],
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server=server,
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servers_client=self.servers_client)
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linux_client.validate_authentication()
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# If validation went ok, or it was skipped, shelve the server
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compute.shelve_server(self.servers_client, server['id'])
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def _unshelve_server_and_check_volumes(self, server,
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validation_resources,
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number_of_volumes):
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# Unshelve the instance and check that there are expected volumes
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self.servers_client.unshelve_server(server['id'])
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waiters.wait_for_server_status(self.servers_client,
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server['id'],
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'ACTIVE')
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if CONF.validation.run_validation:
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counted_volumes = self._count_volumes(
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server, validation_resources)
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self.assertEqual(number_of_volumes, counted_volumes)
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# NOTE(mriedem): Marked as slow since this is an uncommon scenario until
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# attach/detach root volume is supported in nova, and it's slow.
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@decorators.attr(type='slow')
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@decorators.idempotent_id('13a940b6-3474-4c3c-b03f-29b89112bfee')
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def test_attach_volume_shelved_or_offload_server(self):
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# Create server, count number of volumes on it, shelve
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# server and attach pre-created volume to shelved server
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server, validation_resources = self._create_server()
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volume = self.create_volume()
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num_vol = self._count_volumes(server, validation_resources)
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self._shelve_server(server, validation_resources)
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attachment = self.attach_volume(server, volume)
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# Unshelve the instance and check that attached volume exists
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self._unshelve_server_and_check_volumes(
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server, validation_resources, num_vol + 1)
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# Get volume attachment of the server
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volume_attachment = self.servers_client.show_volume_attachment(
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server['id'],
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attachment['id'])['volumeAttachment']
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self.assertEqual(server['id'], volume_attachment['serverId'])
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self.assertEqual(attachment['id'], volume_attachment['id'])
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# Check the mountpoint is not None after unshelve server even in
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# case of shelved_offloaded.
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self.assertIsNotNone(volume_attachment['device'])
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# NOTE(mriedem): Marked as slow since this is an uncommon scenario until
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# attach/detach root volume is supported in nova, and it's slow.
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@decorators.attr(type='slow')
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@decorators.idempotent_id('b54e86dd-a070-49c4-9c07-59ae6dae15aa')
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def test_detach_volume_shelved_or_offload_server(self):
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# Count number of volumes on instance, shelve
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# server and attach pre-created volume to shelved server
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server, validation_resources = self._create_server()
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volume = self.create_volume()
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num_vol = self._count_volumes(server, validation_resources)
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self._shelve_server(server, validation_resources)
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# Attach and then detach the volume
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self.attach_volume(server, volume)
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self.servers_client.detach_volume(server['id'], volume['id'])
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waiters.wait_for_volume_resource_status(self.volumes_client,
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volume['id'], 'available')
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# Unshelve the instance and check that we have the expected number of
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# volume(s)
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self._unshelve_server_and_check_volumes(
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server, validation_resources, num_vol)
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class AttachVolumeMultiAttachTest(BaseAttachVolumeTest):
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min_microversion = '2.60'
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max_microversion = 'latest'
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@classmethod
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def skip_checks(cls):
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super(AttachVolumeMultiAttachTest, cls).skip_checks()
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if not CONF.compute_feature_enabled.volume_multiattach:
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raise cls.skipException('Volume multi-attach is not available.')
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def _attach_volume_to_servers(self, volume, servers):
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"""Attaches the given volume to the list of servers.
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:param volume: The multiattach volume to use.
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:param servers: list of server instances on which the volume will be
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attached
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:returns: dict of server ID to volumeAttachment dict entries
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"""
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attachments = {}
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for server in servers:
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# map the server id to the volume attachment
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attachments[server['id']] = self.attach_volume(server, volume)
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# NOTE(mriedem): In the case of multi-attach, after the first
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# attach the volume will be in-use. On the second attach, nova will
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# 'reserve' the volume which puts it back into 'attaching' status
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# and then the volume shouldn't go back to in-use until the compute
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# actually attaches the server to the volume.
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return attachments
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def _detach_multiattach_volume(self, volume_id, server_id):
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"""Detaches a multiattach volume from the given server.
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Depending on the number of attachments the volume has, this method
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will wait for the volume to go to back to 'in-use' status if there are
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more attachments or 'available' state if there are no more attachments.
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"""
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# Count the number of attachments before starting the detach.
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volume = self.volumes_client.show_volume(volume_id)['volume']
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attachments = volume['attachments']
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wait_status = 'in-use' if len(attachments) > 1 else 'available'
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# Now detach the volume from the given server.
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self.servers_client.detach_volume(server_id, volume_id)
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# Now wait for the volume status to change.
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waiters.wait_for_volume_resource_status(
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self.volumes_client, volume_id, wait_status)
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def _create_multiattach_volume(self, bootable=False):
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kwargs = {}
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if bootable:
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kwargs['image_ref'] = CONF.compute.image_ref
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return self.create_volume(multiattach=True, **kwargs)
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def _create_and_multiattach(self):
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"""Creates two server instances and a volume and attaches to both.
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:returns: A three-item tuple of the list of created servers,
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the created volume, and dict of server ID to volumeAttachment
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dict entries
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"""
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servers = []
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for x in range(2):
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name = 'multiattach-server-%i' % x
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servers.append(self.create_test_server(name=name))
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# Now wait for the servers to be ACTIVE.
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for server in servers:
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waiters.wait_for_server_status(self.servers_client, server['id'],
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'ACTIVE')
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volume = self._create_multiattach_volume()
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# Attach the volume to the servers
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attachments = self._attach_volume_to_servers(volume, servers)
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return servers, volume, attachments
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@decorators.idempotent_id('8d5853f7-56e7-4988-9b0c-48cea3c7049a')
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def test_list_get_volume_attachments_multiattach(self):
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# Attach a single volume to two servers.
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servers, volume, attachments = self._create_and_multiattach()
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# List attachments from the volume and make sure the server uuids
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# are in that list.
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vol_attachments = self.volumes_client.show_volume(
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volume['id'])['volume']['attachments']
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attached_server_ids = [attachment['server_id']
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for attachment in vol_attachments]
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self.assertEqual(2, len(attached_server_ids))
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# List Volume attachment of the servers
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for server in servers:
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self.assertIn(server['id'], attached_server_ids)
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vol_attachments = self.servers_client.list_volume_attachments(
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server['id'])['volumeAttachments']
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self.assertEqual(1, len(vol_attachments))
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attachment = attachments[server['id']]
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self.assertDictEqual(attachment, vol_attachments[0])
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# Detach the volume from this server.
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self._detach_multiattach_volume(volume['id'], server['id'])
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def _boot_from_multiattach_volume(self):
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"""Boots a server from a multiattach volume.
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The volume will not be deleted when the server is deleted.
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:returns: 2-item tuple of (server, volume)
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"""
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volume = self._create_multiattach_volume(bootable=True)
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# Now create a server from the bootable volume.
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bdm = [{
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'uuid': volume['id'],
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'source_type': 'volume',
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'destination_type': 'volume',
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'boot_index': 0,
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'delete_on_termination': False}]
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server = self.create_test_server(
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image_id='', block_device_mapping_v2=bdm, wait_until='ACTIVE')
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# Assert the volume is attached to the server.
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attachments = self.servers_client.list_volume_attachments(
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server['id'])['volumeAttachments']
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self.assertEqual(1, len(attachments))
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self.assertEqual(volume['id'], attachments[0]['volumeId'])
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return server, volume
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@decorators.idempotent_id('65e33aa2-185b-44c8-b22e-e524973ed625')
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def test_boot_from_multiattach_volume(self):
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"""Simple test to boot an instance from a multiattach volume."""
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self._boot_from_multiattach_volume()
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@utils.services('image')
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@decorators.idempotent_id('885ac48a-2d7a-40c5-ae8b-1993882d724c')
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def test_snapshot_volume_backed_multiattach(self):
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"""Boots a server from a multiattach volume and snapshots the server.
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Creating the snapshot of the server will also create a snapshot of
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the volume.
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"""
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server, volume = self._boot_from_multiattach_volume()
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# Create a snapshot of the server (and volume implicitly).
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self.create_image_from_server(
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server['id'], name='multiattach-snapshot',
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wait_until='active', wait_for_server=True)
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# TODO(mriedem): Make sure the volume snapshot exists. This requires
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# adding the volume snapshots client to BaseV2ComputeTest.
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# Delete the server, wait for it to be gone, and make sure the volume
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# still exists.
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self.servers_client.delete_server(server['id'])
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waiters.wait_for_server_termination(self.servers_client, server['id'])
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# Delete the volume and cascade the delete of the volume snapshot.
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self.volumes_client.delete_volume(volume['id'], cascade=True)
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# Now we have to wait for the volume to be gone otherwise the normal
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# teardown will fail since it will race with our call and the snapshot
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# might still exist.
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self.volumes_client.wait_for_resource_deletion(volume['id'])
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@decorators.idempotent_id('f01c7169-a124-4fc7-ae60-5e380e247c9c')
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@testtools.skipUnless(CONF.compute_feature_enabled.resize,
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'Resize not available.')
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def test_resize_server_with_multiattached_volume(self):
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# Attach a single volume to multiple servers, then resize the servers
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servers, volume, _ = self._create_and_multiattach()
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for server in servers:
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self.resize_server(server['id'], self.flavor_ref_alt)
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for server in servers:
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self._detach_multiattach_volume(volume['id'], server['id'])
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# TODO(mriedem): Might be interesting to create a bootable multiattach
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# volume with delete_on_termination=True, create server1 from the
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# volume, then attach it to server2, and then delete server1 in which
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# case the volume won't be deleted because it's still attached to
|
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# server2 and make sure the volume is still attached to server2.
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