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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# 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.
"""Implementation of a fake volume API."""
import uuid
from oslo.config import cfg
from nova import exception
from nova.openstack.common import log as logging
from nova.openstack.common import timeutils
LOG = logging.getLogger(__name__)
CONF = cfg.CONF
CONF.import_opt('cinder_cross_az_attach',
'nova.volume.cinder')
class fake_volume():
user_uuid = '4a3cd440-b9c2-11e1-afa6-0800200c9a66'
instance_uuid = '4a3cd441-b9c2-11e1-afa6-0800200c9a66'
def __init__(self, size, name,
description, volume_id, snapshot,
volume_type, metadata,
availability_zone):
snapshot_id = None
if snapshot is not None:
snapshot_id = snapshot['id']
if volume_id is None:
volume_id = str(uuid.uuid4())
self.vol = {
'created_at': timeutils.utcnow(),
'deleted_at': None,
'updated_at': timeutils.utcnow(),
'uuid': 'WTF',
'deleted': False,
'id': volume_id,
'user_id': self.user_uuid,
'project_id': 'fake-project-id',
'snapshot_id': snapshot_id,
'host': None,
'size': size,
'availability_zone': availability_zone,
'instance_uuid': None,
'mountpoint': None,
'attach_time': timeutils.utcnow(),
'status': 'available',
'attach_status': 'detached',
'scheduled_at': None,
'launched_at': None,
'terminated_at': None,
'display_name': name,
'display_description': description,
'provider_location': 'fake-location',
'provider_auth': 'fake-auth',
'volume_type_id': 99
}
def get(self, key, default=None):
return self.vol[key]
def __setitem__(self, key, value):
self.vol[key] = value
def __getitem__(self, key):
self.vol[key]
class fake_snapshot():
user_uuid = '4a3cd440-b9c2-11e1-afa6-0800200c9a66'
instance_uuid = '4a3cd441-b9c2-11e1-afa6-0800200c9a66'
def __init__(self, volume_id, size, name, desc, id=None):
if id is None:
id = str(uuid.uuid4())
self.snap = {
'created_at': timeutils.utcnow(),
'deleted_at': None,
'updated_at': timeutils.utcnow(),
'uuid': 'WTF',
'deleted': False,
'id': str(id),
'volume_id': volume_id,
'status': 'creating',
'progress': '0%',
'volume_size': 1,
'display_name': name,
'display_description': desc,
'user_id': self.user_uuid,
'project_id': 'fake-project-id'
}
def get(self, key, default=None):
return self.snap[key]
def __setitem__(self, key, value):
self.snap[key] = value
def __getitem__(self, key):
self.snap[key]
class API(object):
volume_list = []
snapshot_list = []
_instance = None
class Singleton:
def __init__(self):
self.API = None
def __init__(self):
if API._instance is None:
API._instance = API.Singleton()
self._EventHandler_instance = API._instance
def create(self, context, size, name, description, snapshot=None,
volume_type=None, metadata=None, availability_zone=None):
v = fake_volume(size, name,
description, None,
snapshot, volume_type,
metadata, availability_zone)
self.volume_list.append(v.vol)
LOG.info('creating volume %s', v.vol['id'])
return v.vol
def create_with_kwargs(self, context, **kwargs):
volume_id = kwargs.get('volume_id', None)
v = fake_volume(kwargs['size'],
kwargs['name'],
kwargs['description'],
str(volume_id),
None,
None,
None,
None)
if kwargs.get('status', None) is not None:
v.vol['status'] = kwargs['status']
if kwargs['host'] is not None:
v.vol['host'] = kwargs['host']
if kwargs['attach_status'] is not None:
v.vol['attach_status'] = kwargs['attach_status']
if kwargs.get('snapshot_id', None) is not None:
v.vol['snapshot_id'] = kwargs['snapshot_id']
self.volume_list.append(v.vol)
return v.vol
def get(self, context, volume_id):
if volume_id == 87654321:
return {'id': volume_id,
'attach_time': '13:56:24',
'status': 'in-use'}
for v in self.volume_list:
if v['id'] == str(volume_id):
return v
raise exception.VolumeNotFound(volume_id=volume_id)
def get_all(self, context):
return self.volume_list
def delete(self, context, volume):
LOG.info('deleting volume %s', volume['id'])
self.volume_list = [v for v in self.volume_list if v != volume]
def check_attach(self, context, volume, instance=None):
if volume['status'] != 'available':
msg = _("status must be available")
msg = "%s" % volume
raise exception.InvalidVolume(reason=msg)
if volume['attach_status'] == 'attached':
msg = _("already attached")
raise exception.InvalidVolume(reason=msg)
if instance and not CONF.cinder_cross_az_attach:
if instance['availability_zone'] != volume['availability_zone']:
msg = _("Instance and volume not in same availability_zone")
raise exception.InvalidVolume(reason=msg)
def check_detach(self, context, volume):
if volume['status'] == "available":
msg = _("already detached")
raise exception.InvalidVolume(reason=msg)
def attach(self, context, volume, instance_uuid, mountpoint):
LOG.info('attaching volume %s', volume['id'])
volume = self.get(context, volume['id'])
volume['status'] = 'in-use'
volume['mountpoint'] = mountpoint
volume['attach_status'] = 'attached'
volume['instance_uuid'] = instance_uuid
volume['attach_time'] = timeutils.utcnow()
def fake_set_snapshot_id(self, context, volume, snapshot_id):
volume['snapshot_id'] = snapshot_id
def reset_fake_api(self, context):
del self.volume_list[:]
del self.snapshot_list[:]
def detach(self, context, volume):
LOG.info('detaching volume %s', volume['id'])
volume = self.get(context, volume['id'])
volume['status'] = 'available'
volume['mountpoint'] = None
volume['attach_status'] = 'detached'
volume['instance_uuid'] = None
def initialize_connection(self, context, volume_id, connector):
return {'driver_volume_type': 'iscsi', 'data': {}}
def terminate_connection(self, context, volume_id, connector):
return None
def get_snapshot(self, context, snapshot_id):
for snap in self.snapshot_list:
if snap['id'] == str(snapshot_id):
return snap
def get_all_snapshots(self, context):
return self.snapshot_list
def create_snapshot(self, context, volume, name, description, id=None):
snapshot = fake_snapshot(volume['id'], volume['size'],
name, description, id)
self.snapshot_list.append(snapshot.snap)
return snapshot.snap
def create_snapshot_with_kwargs(self, context, **kwargs):
snapshot = fake_snapshot(kwargs.get('volume_id'),
kwargs.get('volume_size'),
kwargs.get('name'),
kwargs.get('description'),
kwargs.get('snap_id'))
status = kwargs.get('status', None)
snapshot.snap['status'] = status
self.snapshot_list.append(snapshot.snap)
return snapshot.snap
def create_snapshot_force(self, context, volume,
name, description, id=None):
snapshot = fake_snapshot(volume['id'], volume['size'],
name, description, id)
self.snapshot_list.append(snapshot.snap)
return snapshot.snap
def delete_snapshot(self, context, snapshot):
self.snapshot_list = [s for s in self.snapshot_list if s != snapshot]
def reserve_volume(self, context, volume):
LOG.info('reserving volume %s', volume['id'])
volume = self.get(context, volume['id'])
volume['status'] = 'attaching'
def unreserve_volume(self, context, volume):
LOG.info('unreserving volume %s', volume['id'])
volume = self.get(context, volume['id'])
volume['status'] = 'available'
def begin_detaching(self, context, volume):
LOG.info('beging detaching volume %s', volume['id'])
volume = self.get(context, volume['id'])
volume['status'] = 'detaching'
def roll_detaching(self, context, volume):
LOG.info('roll detaching volume %s', volume['id'])
volume = self.get(context, volume['id'])
volume['status'] = 'in-use'
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