217 lines
9.8 KiB
Python
217 lines
9.8 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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from oslo_log import log as logging
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from tempest.common import utils
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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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from tempest.scenario import manager
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CONF = config.CONF
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LOG = logging.getLogger(__name__)
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class TestVolumeMigrateRetypeAttached(manager.ScenarioTest):
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"""This test case attempts to reproduce the following steps:
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* Create 2 volume types representing 2 different backends
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* Create in Cinder some bootable volume importing a Glance image using
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* volume_type_1
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* Boot an instance from the bootable volume
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* Write to the volume
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* Perform a cinder retype --on-demand of the volume to type of backend #2
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* Check written content of migrated volume
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* Check the type of the volume has been updated.
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* Check the volume is still in-use and the migration was successful.
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* Check that the same volume is attached to the instance.
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"""
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credentials = ['primary', 'admin']
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@classmethod
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def setup_clients(cls):
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super(TestVolumeMigrateRetypeAttached, cls).setup_clients()
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cls.admin_volumes_client = cls.os_admin.volumes_client_latest
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@classmethod
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def skip_checks(cls):
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super(TestVolumeMigrateRetypeAttached, cls).skip_checks()
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if not CONF.volume_feature_enabled.multi_backend:
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raise cls.skipException("Cinder multi-backend feature disabled")
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if len(set(CONF.volume.backend_names)) < 2:
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raise cls.skipException("Requires at least two different "
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"backend names")
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def _boot_instance_from_volume(self, vol_id, keypair, security_group):
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key_name = keypair['name']
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security_groups = [{'name': security_group['name']}]
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block_device_mapping = [{'device_name': 'vda', 'volume_id': vol_id,
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'delete_on_termination': False}]
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return self.create_server(image_id='',
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key_name=key_name,
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security_groups=security_groups,
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block_device_mapping=block_device_mapping)
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def _create_volume_types(self):
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backend_names = CONF.volume.backend_names
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backend_source = backend_names[0]
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backend_dest = backend_names[1]
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source_body = self.create_volume_type(backend_name=backend_source)
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dest_body = self.create_volume_type(backend_name=backend_dest)
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LOG.info("Created Volume types: %(src)s -> %(src_backend)s, %(dst)s "
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"-> %(dst_backend)s", {'src': source_body['name'],
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'src_backend': backend_source,
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'dst': dest_body['name'],
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'dst_backend': backend_dest})
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return ({'name': source_body['name'], 'host': backend_source},
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{'name': dest_body['name'], 'host': backend_dest})
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def _volume_retype_with_migration(self, volume_id, new_volume_type):
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# NOTE: The 'on-demand' migration requires admin operation, so
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# admin_volumes_client() should be used here.
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migration_policy = 'on-demand'
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self.admin_volumes_client.retype_volume(
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volume_id, new_type=new_volume_type,
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migration_policy=migration_policy)
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waiters.wait_for_volume_retype(self.volumes_client,
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volume_id, new_volume_type)
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@decorators.attr(type='slow')
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@decorators.idempotent_id('deadd2c2-beef-4dce-98be-f86765ff311b')
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@utils.services('compute', 'volume')
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def test_volume_retype_attached(self):
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LOG.info("Creating keypair and security group")
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keypair = self.create_keypair()
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security_group = self._create_security_group()
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# create volume types
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LOG.info("Creating Volume types")
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source_type, dest_type = self._create_volume_types()
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# create an instance from volume
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LOG.info("Booting instance from volume")
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volume_id = self.create_volume(imageRef=CONF.compute.image_ref,
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volume_type=source_type['name'])['id']
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instance = self._boot_instance_from_volume(volume_id, keypair,
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security_group)
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# write content to volume on instance
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LOG.info("Setting timestamp in instance %s", instance['id'])
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ip_instance = self.get_server_ip(instance)
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timestamp = self.create_timestamp(ip_instance,
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private_key=keypair['private_key'],
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server=instance)
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# retype volume with migration from backend #1 to backend #2
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LOG.info("Retyping Volume %s to new type %s", volume_id,
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dest_type['name'])
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# This method calls for the retype of the volume before calling a
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# waiter that asserts that the volume type has changed successfully.
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self._volume_retype_with_migration(volume_id, dest_type['name'])
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# check the content of written file
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LOG.info("Getting timestamp in postmigrated instance %s",
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instance['id'])
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timestamp2 = self.get_timestamp(ip_instance,
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private_key=keypair['private_key'],
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server=instance)
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self.assertEqual(timestamp, timestamp2)
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# Assert that the volume is on the new host, is still in-use and has a
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# migration_status of success
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volume = self.admin_volumes_client.show_volume(volume_id)['volume']
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# dest_type is host@backend, os-vol-host-attr:host is host@backend#type
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self.assertIn(dest_type['host'], volume['os-vol-host-attr:host'])
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self.assertEqual('in-use', volume['status'])
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self.assertEqual('success', volume['migration_status'])
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# Assert that the same volume id is attached to the instance, ensuring
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# the os-migrate_volume_completion Cinder API has been called.
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attached_volumes = self.servers_client.list_volume_attachments(
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instance['id'])['volumeAttachments']
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self.assertEqual(volume_id, attached_volumes[0]['id'])
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@decorators.attr(type='slow')
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@decorators.idempotent_id('fe47b1ed-640e-4e3b-a090-200e25607362')
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@utils.services('compute', 'volume')
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def test_volume_migrate_attached(self):
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LOG.info("Creating keypair and security group")
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keypair = self.create_keypair()
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security_group = self._create_security_group()
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LOG.info("Creating volume")
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# Create a unique volume type to avoid using the backend default
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migratable_type = self.create_volume_type()['name']
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volume_id = self.create_volume(imageRef=CONF.compute.image_ref,
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volume_type=migratable_type)['id']
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volume = self.admin_volumes_client.show_volume(volume_id)
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LOG.info("Booting instance from volume")
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instance = self._boot_instance_from_volume(volume_id, keypair,
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security_group)
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# Identify the source and destination hosts for the migration
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src_host = volume['volume']['os-vol-host-attr:host']
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# Select the first c-vol host that isn't hosting the volume as the dest
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# host['host_name'] should take the format of host@backend.
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# src_host should take the format of host@backend#type
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hosts = self.admin_volumes_client.list_hosts()['hosts']
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for host in hosts:
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if (host['service'] == 'cinder-volume' and
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not src_host.startswith(host['host_name'])):
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dest_host = host['host_name']
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break
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ip_instance = self.get_server_ip(instance)
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timestamp = self.create_timestamp(ip_instance,
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private_key=keypair['private_key'],
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server=instance)
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LOG.info("Migrating Volume %s from host %s to host %s",
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volume_id, src_host, dest_host)
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self.admin_volumes_client.migrate_volume(volume_id, host=dest_host)
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# This waiter asserts that the migration_status is success and that
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# the volume has moved to the dest_host
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waiters.wait_for_volume_migration(self.admin_volumes_client, volume_id,
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dest_host)
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# check the content of written file
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LOG.info("Getting timestamp in postmigrated instance %s",
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instance['id'])
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timestamp2 = self.get_timestamp(ip_instance,
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private_key=keypair['private_key'],
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server=instance)
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self.assertEqual(timestamp, timestamp2)
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# Assert that the volume is in-use
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volume = self.admin_volumes_client.show_volume(volume_id)['volume']
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self.assertEqual('in-use', volume['status'])
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# Assert that the same volume id is attached to the instance, ensuring
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# the os-migrate_volume_completion Cinder API has been called
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attached_volumes = self.servers_client.list_volume_attachments(
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instance['id'])['volumeAttachments']
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attached_volume_id = attached_volumes[0]['id']
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self.assertEqual(volume_id, attached_volume_id)
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