def test_wait_for_volume_migration_success_and_dst(self):
show_volume = mock.MagicMock(side_effect=[
self.vol_migrating_src_host,
self.vol_migrating_dst_host,
self.vol_migration_success])
client = mock.Mock(spec=volumes_client.VolumesClient,
resource_type="volume",
build_interval=1,
build_timeout=1,
show_volume=show_volume)
self.patch('time.time', return_value=0.)
self.patch('time.sleep')
waiters.wait_for_volume_migration(
client, mock.sentinel.volume_id, 'dst_host')
# Assert that we wait until migration_status is success and dst_host is
# part of the returned os-vol-host-attr:host.
show_volume.assert_has_calls([mock.call(mock.sentinel.volume_id),
mock.call(mock.sentinel.volume_id),
mock.call(mock.sentinel.volume_id)])
def test_volume_migrate_attached(self):
LOG.info("Creating keypair and security group")
keypair = self.create_keypair()
security_group = self._create_security_group()
LOG.info("Creating volume")
# Create a unique volume type to avoid using the backend default
migratable_type = self.create_volume_type()['name']
volume_id = self.create_volume(imageRef=CONF.compute.image_ref,
volume_type=migratable_type)['id']
volume = self.admin_volumes_client.show_volume(volume_id)
LOG.info("Booting instance from volume")
instance = self._boot_instance_from_volume(volume_id, keypair,
security_group)
# Identify the source and destination hosts for the migration
src_host = volume['volume']['os-vol-host-attr:host']
# Select the first c-vol host that isn't hosting the volume as the dest
# host['host_name'] should take the format of host@backend.
# src_host should take the format of host@backend#type
hosts = self.admin_volumes_client.list_hosts()['hosts']
for host in hosts:
if (host['service'] == 'cinder-volume' and
not src_host.startswith(host['host_name'])):
dest_host = host['host_name']
break
ip_instance = self.get_server_ip(instance)
timestamp = self.create_timestamp(ip_instance,
private_key=keypair['private_key'],
server=instance)
LOG.info("Migrating Volume %s from host %s to host %s",
volume_id, src_host, dest_host)
self.admin_volumes_client.migrate_volume(volume_id, host=dest_host)
# This waiter asserts that the migration_status is success and that
# the volume has moved to the dest_host
waiters.wait_for_volume_migration(self.admin_volumes_client, volume_id,
dest_host)
# check the content of written file
LOG.info("Getting timestamp in postmigrated instance %s",
instance['id'])
timestamp2 = self.get_timestamp(ip_instance,
private_key=keypair['private_key'],
server=instance)
self.assertEqual(timestamp, timestamp2)
# Assert that the volume is in-use
volume = self.admin_volumes_client.show_volume(volume_id)['volume']
self.assertEqual('in-use', volume['status'])
# Assert that the same volume id is attached to the instance, ensuring
# the os-migrate_volume_completion Cinder API has been called
attached_volumes = self.servers_client.list_volume_attachments(
instance['id'])['volumeAttachments']
attached_volume_id = attached_volumes[0]['id']
self.assertEqual(volume_id, attached_volume_id)
def test_volume_migrate_attached(self):
LOG.info("Creating keypair and security group")
keypair = self.create_keypair()
security_group = self._create_security_group()
LOG.info("Creating volume")
# Create a unique volume type to avoid using the backend default
migratable_type = self.create_volume_type()['name']
volume_id = self.create_volume(imageRef=CONF.compute.image_ref,
volume_type=migratable_type)['id']
volume = self.admin_volumes_client.show_volume(volume_id)
LOG.info("Booting instance from volume")
instance = self._boot_instance_from_volume(volume_id, keypair,
security_group)
# Identify the source and destination hosts for the migration
src_host = volume['volume']['os-vol-host-attr:host']
# Select the first c-vol host that isn't hosting the volume as the dest
# host['host_name'] should take the format of host@backend.
# src_host should take the format of host@backend#type
hosts = self.admin_volumes_client.list_hosts()['hosts']
for host in hosts:
if (host['service'] == 'cinder-volume'
and not src_host.startswith(host['host_name'])):
dest_host = host['host_name']
break
ip_instance = self.get_server_ip(instance)
timestamp = self.create_timestamp(ip_instance,
private_key=keypair['private_key'],
server=instance)
LOG.info("Migrating Volume %s from host %s to host %s", volume_id,
src_host, dest_host)
self.admin_volumes_client.migrate_volume(volume_id, host=dest_host)
# This waiter asserts that the migration_status is success and that
# the volume has moved to the dest_host
waiters.wait_for_volume_migration(self.admin_volumes_client, volume_id,
dest_host)
# check the content of written file
LOG.info("Getting timestamp in postmigrated instance %s",
instance['id'])
timestamp2 = self.get_timestamp(ip_instance,
private_key=keypair['private_key'],
server=instance)
self.assertEqual(timestamp, timestamp2)
# Assert that the volume is in-use
volume = self.admin_volumes_client.show_volume(volume_id)['volume']
self.assertEqual('in-use', volume['status'])
# Assert that the same volume id is attached to the instance, ensuring
# the os-migrate_volume_completion Cinder API has been called
attached_volumes = self.servers_client.list_volume_attachments(
instance['id'])['volumeAttachments']
attached_volume_id = attached_volumes[0]['id']
self.assertEqual(volume_id, attached_volume_id)