deb-heat/heat/tests/test_volume.py

1430 lines
52 KiB
Python

#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import copy
import json
from cinderclient import exceptions as cinder_exp
from cinderclient.v1 import client as cinderclient
import mox
from oslo.config import cfg
import six
from heat.common import exception
from heat.common import template_format
from heat.db import api as db_api
from heat.engine.clients.os import cinder
from heat.engine.clients.os import glance
from heat.engine.clients.os import nova
from heat.engine.resources import instance
from heat.engine.resources import volume as vol
from heat.engine import rsrc_defn
from heat.engine import scheduler
from heat.tests.common import HeatTestCase
from heat.tests import utils
from heat.tests.v1_1 import fakes
volume_template = '''
{
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "Volume Test",
"Parameters" : {},
"Resources" : {
"WikiDatabase": {
"Type": "AWS::EC2::Instance",
"Properties": {
"ImageId" : "foo",
"InstanceType" : "m1.large",
"KeyName" : "test",
"UserData" : "some data"
}
},
"DataVolume" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : "1",
"AvailabilityZone" : {"Fn::GetAtt": ["WikiDatabase",
"AvailabilityZone"]},
"Tags" : [{ "Key" : "Usage", "Value" : "Wiki Data Volume" }]
}
},
"MountPoint" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "WikiDatabase" },
"VolumeId" : { "Ref" : "DataVolume" },
"Device" : "/dev/vdc"
}
}
}
}
'''
cinder_volume_template = '''
heat_template_version: 2013-05-23
description: Cinder volumes and attachments.
resources:
volume:
type: OS::Cinder::Volume
properties:
availability_zone: nova
size: 1
name: test_name
description: test_description
metadata:
key: value
volume2:
type: OS::Cinder::Volume
properties:
availability_zone: nova
size: 2
attachment:
type: OS::Cinder::VolumeAttachment
properties:
instance_uuid: WikiDatabase
volume_id: { get_resource: volume }
mountpoint: /dev/vdc
'''
class BaseVolumeTest(HeatTestCase):
def setUp(self):
super(BaseVolumeTest, self).setUp()
self.fc = fakes.FakeClient()
self.cinder_fc = cinderclient.Client('username', 'password')
self.m.StubOutWithMock(cinder.CinderClientPlugin, '_create')
self.m.StubOutWithMock(nova.NovaClientPlugin, '_create')
self.m.StubOutWithMock(self.cinder_fc.volumes, 'create')
self.m.StubOutWithMock(self.cinder_fc.volumes, 'get')
self.m.StubOutWithMock(self.cinder_fc.volumes, 'delete')
self.m.StubOutWithMock(self.cinder_fc.volumes, 'extend')
self.m.StubOutWithMock(self.cinder_fc.volumes, 'update')
self.m.StubOutWithMock(self.cinder_fc.volumes, 'update_all_metadata')
self.m.StubOutWithMock(self.fc.volumes, 'create_server_volume')
self.m.StubOutWithMock(self.fc.volumes, 'delete_server_volume')
self.m.StubOutWithMock(self.fc.volumes, 'get_server_volume')
self.use_cinder = False
def _mock_delete_volume(self, fv):
self.m.StubOutWithMock(fv, 'delete')
fv.delete().AndReturn(True)
self.m.StubOutWithMock(fv, 'get')
fv.get().AndReturn(None)
fv.get().AndRaise(cinder_exp.NotFound('Not found'))
self.m.ReplayAll()
def _mock_create_server_volume_script(self, fva,
server=u'WikiDatabase',
volume='vol-123',
device=u'/dev/vdc',
update=False):
if not update:
nova.NovaClientPlugin._create().MultipleTimes().AndReturn(self.fc)
self.fc.volumes.create_server_volume(
device=device, server_id=server, volume_id=volume).AndReturn(fva)
self.cinder_fc.volumes.get(volume).AndReturn(fva)
def create_volume(self, t, stack, resource_name):
if self.use_cinder:
Volume = vol.CinderVolume
else:
data = t['Resources'][resource_name]
data['Properties']['AvailabilityZone'] = 'nova'
Volume = vol.Volume
rsrc = Volume(resource_name,
stack.t.resource_definitions(stack)[resource_name],
stack)
self.assertIsNone(rsrc.validate())
scheduler.TaskRunner(rsrc.create)()
self.assertEqual((rsrc.CREATE, rsrc.COMPLETE), rsrc.state)
return rsrc
def create_attachment(self, t, stack, resource_name):
if self.use_cinder:
Attachment = vol.CinderVolumeAttachment
else:
Attachment = vol.VolumeAttachment
resource_defns = stack.t.resource_definitions(stack)
rsrc = Attachment(resource_name,
resource_defns[resource_name],
stack)
self.assertIsNone(rsrc.validate())
scheduler.TaskRunner(rsrc.create)()
self.assertEqual((rsrc.CREATE, rsrc.COMPLETE), rsrc.state)
return rsrc
class VolumeTest(BaseVolumeTest):
def setUp(self):
super(VolumeTest, self).setUp()
self.t = template_format.parse(volume_template)
self.use_cinder = False
def _mock_create_volume(self, fv, stack_name):
cinder.CinderClientPlugin._create().MultipleTimes().AndReturn(
self.cinder_fc)
vol_name = utils.PhysName(stack_name, 'DataVolume')
self.cinder_fc.volumes.create(
size=1, availability_zone='nova',
display_description=vol_name,
display_name=vol_name,
metadata={u'Usage': u'Wiki Data Volume'}).AndReturn(fv)
def test_volume(self):
fv = FakeVolume('creating', 'available')
stack_name = 'test_volume_stack'
# create script
self._mock_create_volume(fv, stack_name)
# delete script
self.cinder_fc.volumes.get('vol-123').AndReturn(fv)
self.cinder_fc.volumes.get('vol-123').AndReturn(fv)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'DataVolume')
self.assertEqual('available', fv.status)
fv.status = 'in-use'
ex = self.assertRaises(exception.ResourceFailure,
scheduler.TaskRunner(rsrc.destroy))
self.assertIn("Volume in use", six.text_type(ex))
self._mock_delete_volume(fv)
fv.status = 'available'
scheduler.TaskRunner(rsrc.destroy)()
self.m.VerifyAll()
def test_volume_default_az(self):
fv = FakeVolume('creating', 'available')
stack_name = 'test_volume_stack'
# create script
nova.NovaClientPlugin._create().AndReturn(self.fc)
self.m.StubOutWithMock(instance.Instance, 'handle_create')
self.m.StubOutWithMock(instance.Instance, 'check_create_complete')
self.m.StubOutWithMock(vol.VolumeAttachment, 'handle_create')
self.m.StubOutWithMock(vol.VolumeAttachment, 'check_create_complete')
instance.Instance.handle_create().AndReturn(None)
instance.Instance.check_create_complete(None).AndReturn(True)
cinder.CinderClientPlugin._create().AndReturn(
self.cinder_fc)
self.stub_ImageConstraint_validate()
vol_name = utils.PhysName(stack_name, 'DataVolume')
self.cinder_fc.volumes.create(
size=1, availability_zone=None,
display_description=vol_name,
display_name=vol_name,
metadata={u'Usage': u'Wiki Data Volume'}).AndReturn(fv)
vol.VolumeAttachment.handle_create().AndReturn(None)
vol.VolumeAttachment.check_create_complete(None).AndReturn(True)
# delete script
self.m.StubOutWithMock(instance.Instance, 'handle_delete')
self.m.StubOutWithMock(vol.VolumeAttachment, 'handle_delete')
instance.Instance.handle_delete().AndReturn(None)
self.cinder_fc.volumes.get('vol-123').AndRaise(
cinder_exp.NotFound('Not found'))
vol.VolumeAttachment.handle_delete().AndReturn(None)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = stack['DataVolume']
self.assertIsNone(rsrc.validate())
scheduler.TaskRunner(stack.create)()
self.assertEqual((rsrc.CREATE, rsrc.COMPLETE), rsrc.state)
scheduler.TaskRunner(stack.delete)()
self.m.VerifyAll()
def test_volume_create_error(self):
fv = FakeVolume('creating', 'error')
stack_name = 'test_volume_create_error_stack'
cfg.CONF.set_override('action_retry_limit', 0)
self._mock_create_volume(fv, stack_name)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
ex = self.assertRaises(exception.ResourceFailure,
self.create_volume, self.t, stack, 'DataVolume')
self.assertIn('Went to status error due to "Unknown"',
six.text_type(ex))
self.m.VerifyAll()
def test_volume_bad_tags(self):
stack_name = 'test_volume_bad_tags_stack'
self.t['Resources']['DataVolume']['Properties'][
'Tags'] = [{'Foo': 'bar'}]
stack = utils.parse_stack(self.t, stack_name=stack_name)
ex = self.assertRaises(exception.StackValidationFailed,
self.create_volume, self.t, stack, 'DataVolume')
self.assertIn('Tags Property error', six.text_type(ex))
self.m.VerifyAll()
def test_volume_attachment_error(self):
fv = FakeVolume('creating', 'available')
fva = FakeVolume('attaching', 'error')
stack_name = 'test_volume_attach_error_stack'
self._mock_create_volume(fv, stack_name)
self._mock_create_server_volume_script(fva)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'DataVolume')
self.assertEqual('available', fv.status)
ex = self.assertRaises(exception.ResourceFailure,
self.create_attachment,
self.t, stack, 'MountPoint')
self.assertIn("Volume attachment failed - Unknown status error",
six.text_type(ex))
self.m.VerifyAll()
def test_volume_attachment(self):
fv = FakeVolume('creating', 'available')
fva = FakeVolume('attaching', 'in-use')
stack_name = 'test_volume_attach_stack'
self._mock_create_volume(fv, stack_name)
self._mock_create_server_volume_script(fva)
# delete script
fva = FakeVolume('in-use', 'available')
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.cinder_fc.volumes.get(fva.id).AndReturn(fva)
self.fc.volumes.delete_server_volume(
'WikiDatabase', 'vol-123').MultipleTimes().AndReturn(None)
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.fc.volumes.get_server_volume(
u'WikiDatabase', 'vol-123').AndRaise(fakes.fake_exception())
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'DataVolume')
self.assertEqual('available', fv.status)
rsrc = self.create_attachment(self.t, stack, 'MountPoint')
scheduler.TaskRunner(rsrc.delete)()
self.m.VerifyAll()
def test_volume_detachment_err(self):
fv = FakeVolume('creating', 'available')
fva = FakeVolume('in-use', 'available')
stack_name = 'test_volume_detach_stack'
self._mock_create_volume(fv, stack_name)
self._mock_create_server_volume_script(fva)
# delete script
fva = FakeVolume('in-use', 'available')
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.cinder_fc.volumes.get(fva.id).AndReturn(fva)
self.fc.volumes.delete_server_volume(
'WikiDatabase', 'vol-123').AndRaise(fakes.fake_exception(400))
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.fc.volumes.get_server_volume(
u'WikiDatabase', 'vol-123').AndRaise(fakes.fake_exception())
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'DataVolume')
self.assertEqual('available', fv.status)
rsrc = self.create_attachment(self.t, stack, 'MountPoint')
scheduler.TaskRunner(rsrc.delete)()
self.m.VerifyAll()
def test_volume_detach_non_exist(self):
fv = FakeVolume('creating', 'available')
fva = FakeVolume('in-use', 'available')
stack_name = 'test_volume_detach_stack'
self._mock_create_volume(fv, stack_name)
self._mock_create_server_volume_script(fva)
# delete script
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.cinder_fc.volumes.get(fva.id).AndRaise(
cinder_exp.NotFound('Not found'))
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'DataVolume')
rsrc = self.create_attachment(self.t, stack, 'MountPoint')
scheduler.TaskRunner(rsrc.delete)()
self.m.VerifyAll()
def test_volume_detach_with_latency(self):
fv = FakeVolume('creating', 'available')
fva = FakeVolume('attaching', 'in-use')
stack_name = 'test_volume_attach_stack'
self._mock_create_volume(fv, stack_name)
self._mock_create_server_volume_script(fva)
# delete script
volume_detach_cycle = 'in-use', 'detaching', 'available'
fva = FakeLatencyVolume(life_cycle=volume_detach_cycle)
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.cinder_fc.volumes.get(fva.id).AndReturn(fva)
self.fc.volumes.delete_server_volume(
'WikiDatabase', 'vol-123').MultipleTimes().AndReturn(None)
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.fc.volumes.get_server_volume(
u'WikiDatabase', 'vol-123').AndRaise(fakes.fake_exception())
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'DataVolume')
self.assertEqual('available', fv.status)
rsrc = self.create_attachment(self.t, stack, 'MountPoint')
scheduler.TaskRunner(rsrc.delete)()
self.m.VerifyAll()
def test_volume_detach_with_error(self):
fv = FakeVolume('creating', 'available')
fva = FakeVolume('attaching', 'in-use')
stack_name = 'test_volume_attach_stack'
self._mock_create_volume(fv, stack_name)
self._mock_create_server_volume_script(fva)
# delete script
fva = FakeVolume('in-use', 'error')
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.cinder_fc.volumes.get(fva.id).AndReturn(fva)
self.fc.volumes.delete_server_volume('WikiDatabase',
'vol-123').AndReturn(None)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'DataVolume')
self.assertEqual('available', fv.status)
rsrc = self.create_attachment(self.t, stack, 'MountPoint')
detach_task = scheduler.TaskRunner(rsrc.delete)
ex = self.assertRaises(exception.ResourceFailure, detach_task)
self.assertIn('Volume detachment failed - Unknown status error',
six.text_type(ex))
self.m.VerifyAll()
def test_volume_delete(self):
stack_name = 'test_volume_stack'
fv = FakeVolume('creating', 'available')
self._mock_create_volume(fv, stack_name)
self.m.ReplayAll()
self.t['Resources']['DataVolume']['DeletionPolicy'] = 'Delete'
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'DataVolume')
self.m.StubOutWithMock(rsrc, "handle_delete")
rsrc.handle_delete().AndReturn(None)
self.m.StubOutWithMock(rsrc, "check_delete_complete")
rsrc.check_delete_complete(mox.IgnoreArg()).AndReturn(True)
self.m.ReplayAll()
scheduler.TaskRunner(rsrc.destroy)()
self.m.VerifyAll()
def test_volume_update_not_supported(self):
stack_name = 'test_volume_stack'
fv = FakeVolume('creating', 'available')
self._mock_create_volume(fv, stack_name)
self.m.ReplayAll()
t = template_format.parse(volume_template)
stack = utils.parse_stack(t, stack_name=stack_name)
rsrc = self.create_volume(t, stack, 'DataVolume')
props = copy.deepcopy(rsrc.properties.data)
props['Size'] = 2
props['Tags'] = None
props['AvailabilityZone'] = 'other'
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
updater = scheduler.TaskRunner(rsrc.update, after)
ex = self.assertRaises(exception.ResourceFailure, updater)
self.assertIn("NotSupported: Update to properties "
"AvailabilityZone, Size, Tags of DataVolume "
"(AWS::EC2::Volume) is not supported",
six.text_type(ex))
self.assertEqual((rsrc.UPDATE, rsrc.FAILED), rsrc.state)
def test_snapshot(self):
stack_name = 'test_volume_stack'
fv = FakeVolume('creating', 'available')
fb = FakeBackup('creating', 'available')
self._mock_create_volume(fv, stack_name)
# snapshot script
self.m.StubOutWithMock(self.cinder_fc.backups, 'create')
self.cinder_fc.backups.create('vol-123').AndReturn(fb)
self.cinder_fc.volumes.get('vol-123').AndReturn(fv)
self.m.ReplayAll()
self.t['Resources']['DataVolume']['DeletionPolicy'] = 'Snapshot'
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'DataVolume')
self._mock_delete_volume(fv)
scheduler.TaskRunner(rsrc.destroy)()
self.m.VerifyAll()
def test_snapshot_error(self):
stack_name = 'test_volume_stack'
fv = FakeVolume('creating', 'available')
fb = FakeBackup('creating', 'error')
self._mock_create_volume(fv, stack_name)
# snapshot script
self.cinder_fc.volumes.get('vol-123').AndReturn(fv)
self.m.StubOutWithMock(self.cinder_fc.backups, 'create')
self.cinder_fc.backups.create('vol-123').AndReturn(fb)
self.m.ReplayAll()
self.t['Resources']['DataVolume']['DeletionPolicy'] = 'Snapshot'
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'DataVolume')
ex = self.assertRaises(exception.ResourceFailure,
scheduler.TaskRunner(rsrc.destroy))
self.assertIn('Unknown status error', six.text_type(ex))
self.m.VerifyAll()
def test_snapshot_no_volume(self):
stack_name = 'test_volume_stack'
cfg.CONF.set_override('action_retry_limit', 0)
fv = FakeVolume('creating', 'error')
self._mock_create_volume(fv, stack_name)
self.cinder_fc.volumes.get('vol-123').AndReturn(fv)
self.m.ReplayAll()
self.t['Resources']['DataVolume']['DeletionPolicy'] = 'Snapshot'
self.t['Resources']['DataVolume']['Properties'][
'AvailabilityZone'] = 'nova'
stack = utils.parse_stack(self.t, stack_name=stack_name)
resource_defns = stack.t.resource_definitions(stack)
rsrc = vol.Volume('DataVolume',
resource_defns['DataVolume'],
stack)
create = scheduler.TaskRunner(rsrc.create)
ex = self.assertRaises(exception.ResourceFailure, create)
self.assertIn('Went to status error due to "Unknown"',
six.text_type(ex))
self._mock_delete_volume(fv)
scheduler.TaskRunner(rsrc.destroy)()
self.m.VerifyAll()
def test_create_from_snapshot(self):
stack_name = 'test_volume_stack'
fv = FakeVolumeWithStateTransition('restoring-backup', 'available')
fvbr = FakeBackupRestore('vol-123')
# create script
cinder.CinderClientPlugin._create().AndReturn(
self.cinder_fc)
self.m.StubOutWithMock(self.cinder_fc.restores, 'restore')
self.cinder_fc.restores.restore('backup-123').AndReturn(fvbr)
self.cinder_fc.volumes.get('vol-123').AndReturn(fv)
self.m.StubOutWithMock(fv, 'update')
vol_name = utils.PhysName(stack_name, 'DataVolume')
fv.update(
display_description=vol_name,
display_name=vol_name)
self.m.ReplayAll()
self.t['Resources']['DataVolume']['Properties'][
'SnapshotId'] = 'backup-123'
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'DataVolume')
self.assertEqual('available', fv.status)
self.m.VerifyAll()
def test_create_from_snapshot_error(self):
stack_name = 'test_volume_stack'
cfg.CONF.set_override('action_retry_limit', 0)
fv = FakeVolumeWithStateTransition('restoring-backup', 'error')
fvbr = FakeBackupRestore('vol-123')
# create script
cinder.CinderClientPlugin._create().AndReturn(
self.cinder_fc)
self.m.StubOutWithMock(self.cinder_fc.restores, 'restore')
self.cinder_fc.restores.restore('backup-123').AndReturn(fvbr)
self.cinder_fc.volumes.get('vol-123').AndReturn(fv)
self.m.StubOutWithMock(fv, 'update')
vol_name = utils.PhysName(stack_name, 'DataVolume')
fv.update(
display_description=vol_name,
display_name=vol_name)
self.m.ReplayAll()
self.t['Resources']['DataVolume']['Properties'][
'SnapshotId'] = 'backup-123'
stack = utils.parse_stack(self.t, stack_name=stack_name)
ex = self.assertRaises(exception.ResourceFailure,
self.create_volume, self.t, stack, 'DataVolume')
self.assertIn('Went to status error due to "Unknown"',
six.text_type(ex))
self.m.VerifyAll()
def test_volume_size_constraint(self):
self.t['Resources']['DataVolume']['Properties']['Size'] = '0'
stack = utils.parse_stack(self.t)
error = self.assertRaises(exception.StackValidationFailed,
self.create_volume,
self.t, stack, 'DataVolume')
self.assertEqual(
"Property error : DataVolume: Size 0 is out of "
"range (min: 1, max: None)", six.text_type(error))
def test_volume_attachment_updates_not_supported(self):
fv = FakeVolume('creating', 'available')
fva = FakeVolume('attaching', 'in-use')
stack_name = 'test_volume_attach_stack'
self._mock_create_volume(fv, stack_name)
self._mock_create_server_volume_script(fva)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'DataVolume')
self.assertEqual('available', fv.status)
rsrc = self.create_attachment(self.t, stack, 'MountPoint')
props = copy.deepcopy(rsrc.properties.data)
props['InstanceId'] = 'some_other_instance_id'
props['VolumeId'] = 'some_other_volume_id'
props['Device'] = '/dev/vdz'
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
update_task = scheduler.TaskRunner(rsrc.update, after)
ex = self.assertRaises(exception.ResourceFailure, update_task)
self.assertIn('NotSupported: Update to properties Device, InstanceId, '
'VolumeId of MountPoint (AWS::EC2::VolumeAttachment)',
six.text_type(ex))
self.assertEqual((rsrc.UPDATE, rsrc.FAILED), rsrc.state)
self.m.VerifyAll()
class CinderVolumeTest(BaseVolumeTest):
def setUp(self):
super(CinderVolumeTest, self).setUp()
self.t = template_format.parse(cinder_volume_template)
self.use_cinder = True
def _mock_create_volume(self, fv, stack_name, size=1):
cinder.CinderClientPlugin._create().MultipleTimes().AndReturn(
self.cinder_fc)
self.cinder_fc.volumes.create(
size=size, availability_zone='nova',
display_description='test_description',
display_name='test_name',
metadata={'key': 'value'}).AndReturn(fv)
def test_cinder_volume_size_constraint(self):
self.t['resources']['volume']['properties']['size'] = 0
stack = utils.parse_stack(self.t)
error = self.assertRaises(exception.StackValidationFailed,
self.create_volume,
self.t, stack, 'volume')
self.assertEqual(
"Property error : volume: size 0 is out of "
"range (min: 1, max: None)", six.text_type(error))
def test_cinder_create(self):
fv = FakeVolume('creating', 'available')
stack_name = 'test_volume_stack'
cinder.CinderClientPlugin._create().AndReturn(
self.cinder_fc)
self.cinder_fc.volumes.create(
size=1, availability_zone='nova',
display_description='test_description',
display_name='test_name',
imageRef='46988116-6703-4623-9dbc-2bc6d284021b',
snapshot_id='snap-123',
metadata={'key': 'value'},
source_volid='vol-012',
volume_type='lvm').AndReturn(fv)
self.m.ReplayAll()
self.t['resources']['volume']['properties'].update({
'volume_type': 'lvm',
# Note that specifying all these arguments doesn't work in
# practice, as they are conflicting, but we just want to check they
# are sent to the backend.
'imageRef': '46988116-6703-4623-9dbc-2bc6d284021b',
'snapshot_id': 'snap-123',
'source_volid': 'vol-012',
})
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
self.m.VerifyAll()
def test_cinder_create_from_image(self):
fv = FakeVolumeWithStateTransition('downloading', 'available')
stack_name = 'test_volume_stack'
image_id = '46988116-6703-4623-9dbc-2bc6d284021b'
cinder.CinderClientPlugin._create().AndReturn(
self.cinder_fc)
self.m.StubOutWithMock(glance.GlanceClientPlugin, 'get_image_id')
glance.GlanceClientPlugin.get_image_id(
image_id).MultipleTimes().AndReturn(image_id)
self.cinder_fc.volumes.create(
size=1, availability_zone='nova',
display_description='ImageVolumeDescription',
display_name='ImageVolume',
imageRef=image_id).AndReturn(fv)
self.m.ReplayAll()
self.t['resources']['volume']['properties'] = {
'size': '1',
'name': 'ImageVolume',
'description': 'ImageVolumeDescription',
'availability_zone': 'nova',
'image': image_id,
}
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
self.m.VerifyAll()
def test_cinder_default(self):
fv = FakeVolume('creating', 'available')
stack_name = 'test_volume_stack'
cinder.CinderClientPlugin._create().AndReturn(
self.cinder_fc)
vol_name = utils.PhysName(stack_name, 'volume')
self.cinder_fc.volumes.create(
size=1, availability_zone='nova',
display_description=None,
display_name=vol_name).AndReturn(fv)
self.m.ReplayAll()
self.t['resources']['volume']['properties'] = {
'size': '1',
'availability_zone': 'nova',
}
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
self.m.VerifyAll()
def test_cinder_fn_getatt(self):
fv = FakeVolume('creating', 'available', availability_zone='zone1',
size=1, snapshot_id='snap-123', display_name='name',
display_description='desc', volume_type='lvm',
metadata={'key': 'value'}, source_volid=None,
status='available', bootable=False,
created_at='2013-02-25T02:40:21.000000')
stack_name = 'test_volume_stack'
self._mock_create_volume(fv, stack_name)
self.cinder_fc.volumes.get('vol-123').MultipleTimes().AndReturn(fv)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'volume')
self.assertEqual(u'zone1', rsrc.FnGetAtt('availability_zone'))
self.assertEqual(u'1', rsrc.FnGetAtt('size'))
self.assertEqual(u'snap-123', rsrc.FnGetAtt('snapshot_id'))
self.assertEqual(u'name', rsrc.FnGetAtt('display_name'))
self.assertEqual(u'desc', rsrc.FnGetAtt('display_description'))
self.assertEqual(u'lvm', rsrc.FnGetAtt('volume_type'))
self.assertEqual(json.dumps({'key': 'value'}),
rsrc.FnGetAtt('metadata'))
self.assertEqual({'key': 'value'},
rsrc.FnGetAtt('metadata_values'))
self.assertEqual(u'None', rsrc.FnGetAtt('source_volid'))
self.assertEqual(u'available', rsrc.FnGetAtt('status'))
self.assertEqual(u'2013-02-25T02:40:21.000000',
rsrc.FnGetAtt('created_at'))
self.assertEqual(u'False', rsrc.FnGetAtt('bootable'))
error = self.assertRaises(exception.InvalidTemplateAttribute,
rsrc.FnGetAtt, 'unknown')
self.assertEqual(
'The Referenced Attribute (volume unknown) is incorrect.',
six.text_type(error))
self.m.VerifyAll()
def test_cinder_attachment(self):
fv = FakeVolume('creating', 'available')
fva = FakeVolume('attaching', 'in-use')
stack_name = 'test_volume_attach_stack'
self._mock_create_volume(fv, stack_name)
self._mock_create_server_volume_script(fva)
# delete script
fva = FakeVolume('in-use', 'available')
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.cinder_fc.volumes.get(fva.id).AndReturn(fva)
self.fc.volumes.delete_server_volume(
'WikiDatabase', 'vol-123').MultipleTimes().AndReturn(None)
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.fc.volumes.get_server_volume(
u'WikiDatabase', 'vol-123').AndRaise(fakes.fake_exception())
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
rsrc = self.create_attachment(self.t, stack, 'attachment')
scheduler.TaskRunner(rsrc.delete)()
self.m.VerifyAll()
def test_cinder_volume_shrink_fails(self):
fv = FakeVolume('creating', 'available', size=2)
stack_name = 'test_volume_stack'
# create script
self._mock_create_volume(fv, stack_name, size=2)
# update script
self.cinder_fc.volumes.get(fv.id).AndReturn(fv)
self.m.ReplayAll()
self.t['resources']['volume']['properties']['size'] = 2
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
props = copy.deepcopy(rsrc.properties.data)
props['size'] = 1
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
update_task = scheduler.TaskRunner(rsrc.update, after)
ex = self.assertRaises(exception.ResourceFailure, update_task)
self.assertEqual('NotSupported: Shrinking volume is not supported.',
six.text_type(ex))
self.assertEqual((rsrc.UPDATE, rsrc.FAILED), rsrc.state)
self.m.VerifyAll()
def test_cinder_volume_extend_detached(self):
fv = FakeVolume('creating', 'available', size=1, attachments=[])
stack_name = 'test_volume_stack'
# create script
self._mock_create_volume(fv, stack_name)
# update script
self.cinder_fc.volumes.get(fv.id).AndReturn(fv)
fv2 = FakeLatencyVolume(life_cycle=('extending', 'extending',
'available'))
self.cinder_fc.volumes.get(fv.id).AndReturn(fv2)
self.cinder_fc.volumes.extend(fv.id, 2)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
props = copy.deepcopy(rsrc.properties.data)
props['size'] = 2
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
update_task = scheduler.TaskRunner(rsrc.update, after)
self.assertIsNone(update_task())
self.assertEqual((rsrc.UPDATE, rsrc.COMPLETE), rsrc.state)
self.m.VerifyAll()
def test_cinder_volume_extend_fails_to_start(self):
fv = FakeVolume('creating', 'available', size=1, attachments=[])
stack_name = 'test_volume_stack'
# create script
self._mock_create_volume(fv, stack_name)
# update script
self.cinder_fc.volumes.get(fv.id).AndReturn(fv)
fv2 = FakeVolume('extending', 'extending')
self.cinder_fc.volumes.get(fv.id).AndReturn(fv2)
self.cinder_fc.volumes.extend(fv.id, 2).AndRaise(
cinder_exp.OverLimit(413))
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
props = copy.deepcopy(rsrc.properties.data)
props['size'] = 2
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
update_task = scheduler.TaskRunner(rsrc.update, after)
ex = self.assertRaises(exception.ResourceFailure, update_task)
self.assertIn('Over limit', six.text_type(ex))
self.assertEqual((rsrc.UPDATE, rsrc.FAILED), rsrc.state)
self.m.VerifyAll()
def test_cinder_volume_extend_fails_to_complete(self):
fv = FakeVolume('creating', 'available', size=1, attachments=[])
stack_name = 'test_volume_stack'
# create script
self._mock_create_volume(fv, stack_name)
# update script
self.cinder_fc.volumes.get(fv.id).AndReturn(fv)
fv2 = FakeLatencyVolume(life_cycle=('extending', 'extending',
'error_extending'))
self.cinder_fc.volumes.get(fv.id).AndReturn(fv2)
self.cinder_fc.volumes.extend(fv.id, 2)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
props = copy.deepcopy(rsrc.properties.data)
props['size'] = 2
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
update_task = scheduler.TaskRunner(rsrc.update, after)
ex = self.assertRaises(exception.ResourceFailure, update_task)
self.assertIn("Volume resize failed - Unknown status error_extending",
six.text_type(ex))
self.assertEqual((rsrc.UPDATE, rsrc.FAILED), rsrc.state)
self.m.VerifyAll()
def test_cinder_volume_extend_attached(self):
# create script
fv = FakeVolume('creating', 'available')
stack_name = 'test_volume_stack'
self._mock_create_volume(fv, stack_name)
fva = FakeVolume('attaching', 'in-use')
self._mock_create_server_volume_script(fva)
# update script
attachments = [{'id': 'vol-123',
'device': '/dev/vdc',
'server_id': u'WikiDatabase'}]
fv2 = FakeVolume('available', 'available', attachments=attachments,
size=1)
self.cinder_fc.volumes.get(fv2.id).AndReturn(fv2)
# detach script
fvd = FakeVolume('in-use', 'available')
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fvd)
self.cinder_fc.volumes.get(fvd.id).AndReturn(fvd)
self.fc.volumes.delete_server_volume('WikiDatabase', 'vol-123')
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fvd)
self.fc.volumes.get_server_volume(
u'WikiDatabase', 'vol-123').AndRaise(fakes.fake_exception())
# resize script
fvr = FakeLatencyVolume(life_cycle=('extending', 'extending',
'available'))
self.cinder_fc.volumes.get(fvr.id).AndReturn(fvr)
self.cinder_fc.volumes.extend(fvr.id, 2)
# attach script
fva2 = FakeVolume('attaching', 'in-use')
self._mock_create_server_volume_script(fva2, update=True)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
self.create_attachment(self.t, stack, 'attachment')
props = copy.deepcopy(rsrc.properties.data)
props['size'] = 2
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
update_task = scheduler.TaskRunner(rsrc.update, after)
self.assertIsNone(update_task())
self.assertEqual((rsrc.UPDATE, rsrc.COMPLETE), rsrc.state)
self.m.VerifyAll()
def test_cinder_volume_extend_created_from_backup_with_same_size(self):
stack_name = 'test_volume_stack'
fv = FakeVolumeWithStateTransition('restoring-backup', 'available',
size=2)
fvbr = FakeBackupRestore('vol-123')
# create script
cinder.CinderClientPlugin._create().MultipleTimes().AndReturn(
self.cinder_fc)
self.m.StubOutWithMock(self.cinder_fc.restores, 'restore')
self.cinder_fc.restores.restore('backup-123').AndReturn(fvbr)
self.cinder_fc.volumes.get('vol-123').AndReturn(fv)
self.m.StubOutWithMock(fv, 'update')
vol_name = utils.PhysName(stack_name, 'volume')
fv.update(
display_description=None,
display_name=vol_name)
# update script
self.cinder_fc.volumes.get(fv.id).AndReturn(fv)
self.m.ReplayAll()
self.t['resources']['volume']['properties'] = {
'availability_zone': 'nova',
'backup_id': 'backup-123'
}
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'volume')
self.assertEqual((rsrc.CREATE, rsrc.COMPLETE), rsrc.state)
self.assertEqual('available', fv.status)
props = copy.deepcopy(rsrc.properties.data)
props['size'] = 2
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
update_task = scheduler.TaskRunner(rsrc.update, after)
self.assertIsNone(update_task())
self.assertEqual((rsrc.UPDATE, rsrc.COMPLETE), rsrc.state)
self.m.VerifyAll()
def test_cinder_volume_update_name_and_metadata(self):
# update the name, description and metadata
fv = FakeVolume('creating', 'available', size=1, name='my_vol',
description='test')
stack_name = 'test_volume_stack'
update_name = 'update_name'
meta = {'Key': 'New Value'}
update_description = 'update_description'
kwargs = {
'display_name': update_name,
'display_description': update_description
}
self._mock_create_volume(fv, stack_name)
self.cinder_fc.volumes.get(fv.id).AndReturn(fv)
self.cinder_fc.volumes.update(fv, **kwargs).AndReturn(None)
self.cinder_fc.volumes.update_all_metadata(fv, meta).AndReturn(None)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
rsrc = self.create_volume(self.t, stack, 'volume')
props = copy.deepcopy(rsrc.properties.data)
props['name'] = update_name
props['description'] = update_description
props['metadata'] = meta
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
scheduler.TaskRunner(rsrc.update, after)()
self.assertEqual((rsrc.UPDATE, rsrc.COMPLETE), rsrc.state)
def test_cinder_snapshot(self):
fv = FakeVolume('creating', 'available')
fb = FakeBackup('creating', 'available')
stack_name = 'test_volume_stack'
cinder.CinderClientPlugin._create().MultipleTimes().AndReturn(
self.cinder_fc)
self.cinder_fc.volumes.create(
size=1, availability_zone='nova', display_name='CustomName',
display_description='CustomDescription').AndReturn(fv)
self.m.StubOutWithMock(self.cinder_fc.backups, 'create')
self.cinder_fc.backups.create('vol-123').AndReturn(fb)
self.m.ReplayAll()
t = template_format.parse(volume_template)
t['Resources']['DataVolume']['Properties'] = {
'size': '1',
'availability_zone': 'nova',
'description': 'CustomDescription',
'name': 'CustomName'
}
stack = utils.parse_stack(t, stack_name=stack_name)
resource_defns = stack.t.resource_definitions(stack)
rsrc = vol.CinderVolume('DataVolume',
resource_defns['DataVolume'],
stack)
scheduler.TaskRunner(rsrc.create)()
scheduler.TaskRunner(rsrc.snapshot)()
self.assertEqual((rsrc.SNAPSHOT, rsrc.COMPLETE), rsrc.state)
self.assertEqual({'backup_id': 'backup-123'},
db_api.resource_data_get_all(rsrc))
self.m.VerifyAll()
def test_cinder_snapshot_error(self):
fv = FakeVolume('creating', 'available')
fb = FakeBackup('creating', 'error')
stack_name = 'test_volume_stack'
cinder.CinderClientPlugin._create().MultipleTimes().AndReturn(
self.cinder_fc)
self.cinder_fc.volumes.create(
size=1, availability_zone='nova', display_name='CustomName',
display_description='CustomDescription').AndReturn(fv)
self.m.StubOutWithMock(self.cinder_fc.backups, 'create')
self.cinder_fc.backups.create('vol-123').AndReturn(fb)
self.m.ReplayAll()
t = template_format.parse(volume_template)
t['Resources']['DataVolume']['Properties'] = {
'size': '1',
'availability_zone': 'nova',
'description': 'CustomDescription',
'name': 'CustomName'
}
stack = utils.parse_stack(t, stack_name=stack_name)
resource_defns = stack.t.resource_definitions(stack)
rsrc = vol.CinderVolume('DataVolume',
resource_defns['DataVolume'],
stack)
scheduler.TaskRunner(rsrc.create)()
self.assertRaises(exception.ResourceFailure,
scheduler.TaskRunner(rsrc.snapshot))
self.assertEqual((rsrc.SNAPSHOT, rsrc.FAILED), rsrc.state)
self.assertEqual("Error: error", rsrc.status_reason)
self.assertEqual({}, db_api.resource_data_get_all(rsrc))
self.m.VerifyAll()
def test_cinder_volume_attachment_update_device(self):
fv = FakeVolume('creating', 'available')
fva = FakeVolume('attaching', 'in-use')
fva2 = FakeVolume('attaching', 'in-use')
stack_name = 'test_volume_attach_stack'
self._mock_create_volume(fv, stack_name)
self._mock_create_server_volume_script(fva)
# delete script
fva = FakeVolume('in-use', 'available')
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.cinder_fc.volumes.get(fva.id).AndReturn(fva)
self.fc.volumes.delete_server_volume(
'WikiDatabase', 'vol-123').MultipleTimes().AndReturn(None)
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.fc.volumes.get_server_volume(
u'WikiDatabase', 'vol-123').AndRaise(fakes.fake_exception())
# attach script
self._mock_create_server_volume_script(fva2, device=u'/dev/vdd',
update=True)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
rsrc = self.create_attachment(self.t, stack, 'attachment')
props = copy.deepcopy(rsrc.properties.data)
props['mountpoint'] = '/dev/vdd'
props['volume_id'] = 'vol-123'
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
scheduler.TaskRunner(rsrc.update, after)()
self.assertEqual((rsrc.UPDATE, rsrc.COMPLETE), rsrc.state)
self.m.VerifyAll()
def test_cinder_volume_attachment_update_volume(self):
fv = FakeVolume('creating', 'available')
fva = FakeVolume('attaching', 'in-use')
fv2 = FakeVolume('creating', 'available')
fv2.id = 'vol-456'
fv2a = FakeVolume('attaching', 'in-use')
fv2a.id = 'vol-456'
stack_name = 'test_volume_attach_stack'
self._mock_create_volume(fv, stack_name)
vol2_name = utils.PhysName(stack_name, 'volume2')
self.cinder_fc.volumes.create(
size=2, availability_zone='nova',
display_description=None,
display_name=vol2_name).AndReturn(fv2)
self._mock_create_server_volume_script(fva)
# delete script
fva = FakeVolume('in-use', 'available')
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.cinder_fc.volumes.get(fva.id).AndReturn(fva)
self.fc.volumes.delete_server_volume(
'WikiDatabase', 'vol-123').MultipleTimes().AndReturn(None)
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.fc.volumes.get_server_volume(
u'WikiDatabase', 'vol-123').AndRaise(fakes.fake_exception())
# attach script
self._mock_create_server_volume_script(fv2a, volume='vol-456',
update=True)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
self.create_volume(self.t, stack, 'volume2')
self.assertEqual('available', fv2.status)
rsrc = self.create_attachment(self.t, stack, 'attachment')
self.assertEqual((rsrc.CREATE, rsrc.COMPLETE), rsrc.state)
props = copy.deepcopy(rsrc.properties.data)
props['volume_id'] = 'vol-456'
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
scheduler.TaskRunner(rsrc.update, after)()
self.assertEqual((rsrc.UPDATE, rsrc.COMPLETE), rsrc.state)
self.assertEqual(fv2a.id, rsrc.resource_id)
self.m.VerifyAll()
def test_cinder_volume_attachment_update_server(self):
fv = FakeVolume('creating', 'available')
fva = FakeVolume('attaching', 'in-use')
fva2 = FakeVolume('attaching', 'in-use')
stack_name = 'test_volume_attach_stack'
self._mock_create_volume(fv, stack_name)
self._mock_create_server_volume_script(fva)
# delete script
fva = FakeVolume('in-use', 'available')
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.cinder_fc.volumes.get(fva.id).AndReturn(fva)
self.fc.volumes.delete_server_volume(
'WikiDatabase', 'vol-123').MultipleTimes().AndReturn(None)
self.fc.volumes.get_server_volume(u'WikiDatabase',
'vol-123').AndReturn(fva)
self.fc.volumes.get_server_volume(
u'WikiDatabase', 'vol-123').AndRaise(fakes.fake_exception())
# attach script
self._mock_create_server_volume_script(fva2, server=u'AnotherServer',
update=True)
self.m.ReplayAll()
stack = utils.parse_stack(self.t, stack_name=stack_name)
self.create_volume(self.t, stack, 'volume')
self.assertEqual('available', fv.status)
rsrc = self.create_attachment(self.t, stack, 'attachment')
self.assertEqual((rsrc.CREATE, rsrc.COMPLETE), rsrc.state)
props = copy.deepcopy(rsrc.properties.data)
props['instance_uuid'] = 'AnotherServer'
props['volume_id'] = 'vol-123'
after = rsrc_defn.ResourceDefinition(rsrc.name, rsrc.type(), props)
scheduler.TaskRunner(rsrc.update, after)()
self.assertEqual((rsrc.UPDATE, rsrc.COMPLETE), rsrc.state)
self.m.VerifyAll()
class FakeVolume(object):
status = 'attaching'
id = 'vol-123'
def __init__(self, initial_status, final_status, **attrs):
self.status = initial_status
self.final_status = final_status
for key, value in six.iteritems(attrs):
setattr(self, key, value)
def get(self):
self.status = self.final_status
def update(self, **kw):
pass
def delete(self):
pass
class FakeLatencyVolume(object):
status = 'attaching'
id = 'vol-123'
def __init__(self, life_cycle=('creating', 'available'), **attrs):
if not isinstance(life_cycle, tuple):
raise exception.Error('life_cycle need to be a tuple.')
if not len(life_cycle):
raise exception.Error('life_cycle should not be an empty tuple.')
self.life_cycle = iter(life_cycle)
self.status = next(self.life_cycle)
for key, value in six.iteritems(attrs):
setattr(self, key, value)
def get(self):
self.status = next(self.life_cycle)
def update(self, **kw):
pass
class FakeBackup(FakeVolume):
status = 'creating'
id = 'backup-123'
class FakeBackupRestore(object):
volume_id = 'vol-123'
def __init__(self, volume_id):
self.volume_id = volume_id
class FakeVolumeWithStateTransition(FakeVolume):
status = 'restoring-backup'
get_call_count = 0
def get(self):
# Allow get to be called once without changing the status
# This is to allow the check_create_complete method to
# check the initial status.
if self.get_call_count < 1:
self.get_call_count += 1
else:
self.status = self.final_status