def _connect_volume(self, connection_data, dev_number, instance_name, vm_ref, hotplug=True):
sr_uuid, sr_label, sr_params = volume_utils.parse_sr_info(connection_data, "Disk-for:%s" % instance_name)
# Introduce SR if not already present
sr_ref = volume_utils.find_sr_by_uuid(self._session, sr_uuid)
if not sr_ref:
sr_ref = volume_utils.introduce_sr(self._session, sr_uuid, sr_label, sr_params)
try:
# Introduce VDI
if "vdi_uuid" in connection_data:
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref, vdi_uuid=connection_data["vdi_uuid"])
elif "target_lun" in connection_data:
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref, target_lun=connection_data["target_lun"])
else:
# NOTE(sirp): This will introduce the first VDI in the SR
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref)
# Attach
vbd_ref = vm_utils.create_vbd(self._session, vm_ref, vdi_ref, dev_number, bootable=False, osvol=True)
if hotplug:
self._session.call_xenapi("VBD.plug", vbd_ref)
except Exception:
with excutils.save_and_reraise_exception():
# NOTE(sirp): Forgetting the SR will have the effect of
# cleaning up the VDI and VBD records, so no need to handle
# that explicitly.
volume_utils.forget_sr(self._session, sr_ref)
def _connect_volume(self,
connection_info,
dev_number=None,
instance_name=None,
vm_ref=None,
hotplug=True):
driver_type = connection_info['driver_volume_type']
if driver_type not in ['iscsi', 'xensm']:
raise exception.VolumeDriverNotFound(driver_type=driver_type)
connection_data = connection_info['data']
sr_uuid, sr_label, sr_params = volume_utils.parse_sr_info(
connection_data, 'Disk-for:%s' % instance_name)
# Introduce SR if not already present
sr_ref = volume_utils.find_sr_by_uuid(self._session, sr_uuid)
if not sr_ref:
sr_ref = volume_utils.introduce_sr(self._session, sr_uuid,
sr_label, sr_params)
try:
# Introduce VDI
if 'vdi_uuid' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session,
sr_ref,
vdi_uuid=connection_data['vdi_uuid'])
elif 'target_lun' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session,
sr_ref,
target_lun=connection_data['target_lun'])
else:
# NOTE(sirp): This will introduce the first VDI in the SR
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref)
# Attach
if vm_ref:
vbd_ref = vm_utils.create_vbd(self._session,
vm_ref,
vdi_ref,
dev_number,
bootable=False,
osvol=True)
running = not vm_utils.is_vm_shutdown(self._session, vm_ref)
if hotplug and running:
volume_utils.vbd_plug(self._session, vbd_ref, vm_ref)
vdi_uuid = self._session.call_xenapi("VDI.get_uuid", vdi_ref)
return (sr_uuid, vdi_uuid)
except Exception:
with excutils.save_and_reraise_exception():
# NOTE(sirp): Forgetting the SR will have the effect of
# cleaning up the VDI and VBD records, so no need to handle
# that explicitly.
volume_utils.forget_sr(self._session, sr_ref)
def _connect_hypervisor_to_volume(self, sr_ref, connection_data):
LOG.debug("Connect volume to hypervisor: %s", connection_data)
if "vdi_uuid" in connection_data:
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref, vdi_uuid=connection_data["vdi_uuid"])
elif "target_lun" in connection_data:
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref, target_lun=connection_data["target_lun"])
else:
# NOTE(sirp): This will introduce the first VDI in the SR
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref)
return vdi_ref
def _connect_volume(self, connection_info, dev_number=None,
instance_name=None, vm_ref=None, hotplug=True):
driver_type = connection_info['driver_volume_type']
if driver_type not in ['iscsi', 'xensm']:
raise exception.VolumeDriverNotFound(driver_type=driver_type)
connection_data = connection_info['data']
sr_uuid, sr_label, sr_params = volume_utils.parse_sr_info(
connection_data, 'Disk-for:%s' % instance_name)
# Introduce SR if not already present
sr_ref = volume_utils.find_sr_by_uuid(self._session, sr_uuid)
if not sr_ref:
sr_ref = volume_utils.introduce_sr(
self._session, sr_uuid, sr_label, sr_params)
try:
# Introduce VDI
if 'vdi_uuid' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session, sr_ref,
vdi_uuid=connection_data['vdi_uuid'])
elif 'target_lun' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session, sr_ref,
target_lun=connection_data['target_lun'])
else:
# NOTE(sirp): This will introduce the first VDI in the SR
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref)
# Attach
if vm_ref:
vbd_ref = vm_utils.create_vbd(self._session, vm_ref, vdi_ref,
dev_number, bootable=False,
osvol=True)
running = not vm_utils.is_vm_shutdown(self._session, vm_ref)
if hotplug and running:
self._session.VBD.plug(vbd_ref, vm_ref)
vdi_uuid = self._session.call_xenapi("VDI.get_uuid", vdi_ref)
return (sr_uuid, vdi_uuid)
except Exception:
with excutils.save_and_reraise_exception():
# NOTE(sirp): Forgetting the SR will have the effect of
# cleaning up the VDI and VBD records, so no need to handle
# that explicitly.
volume_utils.forget_sr(self._session, sr_ref)
def _connect_volume(self,
connection_data,
dev_number,
instance_name,
vm_ref,
hotplug=True):
sr_uuid, sr_label, sr_params = volume_utils.parse_sr_info(
connection_data, 'Disk-for:%s' % instance_name)
# Introduce SR if not already present
sr_ref = volume_utils.find_sr_by_uuid(self._session, sr_uuid)
if not sr_ref:
sr_ref = volume_utils.introduce_sr(self._session, sr_uuid,
sr_label, sr_params)
try:
# Introduce VDI
if 'vdi_uuid' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session,
sr_ref,
vdi_uuid=connection_data['vdi_uuid'])
elif 'target_lun' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session,
sr_ref,
target_lun=connection_data['target_lun'])
else:
# NOTE(sirp): This will introduce the first VDI in the SR
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref)
# Attach
vbd_ref = vm_utils.create_vbd(self._session,
vm_ref,
vdi_ref,
dev_number,
bootable=False,
osvol=True)
if hotplug:
self._session.call_xenapi("VBD.plug", vbd_ref)
except Exception:
with excutils.save_and_reraise_exception():
# NOTE(sirp): Forgetting the SR will have the effect of
# cleaning up the VDI and VBD records, so no need to handle
# that explicitly.
volume_utils.forget_sr(self._session, sr_ref)
def _connect_hypervisor_to_volume(self, sr_ref, connection_data):
LOG.debug("Connect volume to hypervisor: %s", connection_data)
if 'vdi_uuid' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session, sr_ref,
vdi_uuid=connection_data['vdi_uuid'])
elif 'target_lun' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session, sr_ref,
target_lun=connection_data['target_lun'])
else:
# NOTE(sirp): This will introduce the first VDI in the SR
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref)
return vdi_ref
def _connect_hypervisor_to_volume(self, sr_ref, connection_data):
# connection_data can have credentials in it so make sure to scrub
# those before logging.
LOG.debug("Connect volume to hypervisor: %s",
strutils.mask_password(connection_data))
if 'vdi_uuid' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session, sr_ref, vdi_uuid=connection_data['vdi_uuid'])
elif 'target_lun' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session,
sr_ref,
target_lun=connection_data['target_lun'])
else:
# NOTE(sirp): This will introduce the first VDI in the SR
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref)
return vdi_ref
def _connect_hypervisor_to_volume(self, sr_ref, connection_data):
# connection_data can have credentials in it so make sure to scrub
# those before logging.
LOG.debug("Connect volume to hypervisor: %s",
strutils.mask_password(connection_data))
if 'vdi_uuid' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session, sr_ref,
vdi_uuid=connection_data['vdi_uuid'])
elif 'target_lun' in connection_data:
vdi_ref = volume_utils.introduce_vdi(
self._session, sr_ref,
target_lun=connection_data['target_lun'])
else:
# NOTE(sirp): This will introduce the first VDI in the SR
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref)
return vdi_ref
def test_introduce_vdi_retry(self, mock_sleep, mock_get_vdi_ref):
def fake_get_vdi_ref(session, sr_ref, vdi_uuid, target_lun):
fake_get_vdi_ref.call_count += 1
if fake_get_vdi_ref.call_count == 2:
return "vdi_ref"
def fake_call_xenapi(method, *args):
if method == "SR.scan":
return
elif method == "VDI.get_record":
return {"managed": "true"}
session = mock.Mock()
session.call_xenapi.side_effect = fake_call_xenapi
mock_get_vdi_ref.side_effect = fake_get_vdi_ref
fake_get_vdi_ref.call_count = 0
self.assertEqual(volume_utils.introduce_vdi(session, "sr_ref"), "vdi_ref")
mock_sleep.assert_called_once_with(20)
def test_introduce_vdi_retry(self, mock_sleep, mock_get_vdi_ref):
def fake_get_vdi_ref(session, sr_ref, vdi_uuid, target_lun):
fake_get_vdi_ref.call_count += 1
if fake_get_vdi_ref.call_count == 2:
return 'vdi_ref'
def fake_call_xenapi(method, *args):
if method == 'SR.scan':
return
elif method == 'VDI.get_record':
return {'managed': 'true'}
session = mock.Mock()
session.call_xenapi.side_effect = fake_call_xenapi
mock_get_vdi_ref.side_effect = fake_get_vdi_ref
fake_get_vdi_ref.call_count = 0
self.assertEqual(volume_utils.introduce_vdi(session, 'sr_ref'),
'vdi_ref')
mock_sleep.assert_called_once_with(20)
def test_introduce_vdi_retry(self, mock_sleep, mock_get_vdi_ref):
def fake_get_vdi_ref(session, sr_ref, vdi_uuid, target_lun):
fake_get_vdi_ref.call_count += 1
if fake_get_vdi_ref.call_count == 2:
return 'vdi_ref'
def fake_call_xenapi(method, *args):
if method == 'SR.scan':
return
elif method == 'VDI.get_record':
return {'managed': 'true'}
session = mock.Mock()
session.call_xenapi.side_effect = fake_call_xenapi
mock_get_vdi_ref.side_effect = fake_get_vdi_ref
fake_get_vdi_ref.call_count = 0
self.assertEqual(volume_utils.introduce_vdi(session, 'sr_ref'),
'vdi_ref')
mock_sleep.assert_called_once_with(20)
LOG.exception(exc)
raise volume_utils.StorageError(
_('Unable to introduce Storage Repository'))
vdi_uuid = None
target_lun = None
if 'vdi_uuid' in connection_data:
vdi_uuid = connection_data['vdi_uuid']
elif 'target_lun' in connection_data:
target_lun = connection_data['target_lun']
else:
vdi_uuid = None
# Introduce VDI and attach VBD to VM
try:
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref,
vdi_uuid, target_lun)
except volume_utils.StorageError, exc:
LOG.exception(exc)
self.forget_sr(uuid)
raise Exception(
_('Unable to create VDI on SR %(sr_ref)s for'
' instance %(instance_name)s') % locals())
try:
vbd_ref = vm_utils.create_vbd(self._session,
vm_ref,
vdi_ref,
dev_number,
bootable=False,
osvol=True)
except self._session.XenAPI.Failure, exc:
LOG.exception(exc)
raise volume_utils.StorageError(
_('Unable to introduce Storage Repository'))
vdi_uuid = None
target_lun = None
if 'vdi_uuid' in data:
vdi_uuid = data['vdi_uuid']
elif 'target_lun' in data:
target_lun = data['target_lun']
else:
vdi_uuid = None
# Introduce VDI and attach VBD to VM
try:
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref,
vdi_uuid, target_lun)
except volume_utils.StorageError, exc:
LOG.exception(exc)
self.forget_sr(uuid)
raise Exception(_('Unable to create VDI on SR %(sr_ref)s for'
' instance %(instance_name)s') % locals())
dev_number = volume_utils.mountpoint_to_number(mountpoint)
try:
vbd_ref = vm_utils.create_vbd(self._session, vm_ref, vdi_ref,
dev_number, bootable=False)
except self.XenAPI.Failure, exc:
LOG.exception(exc)
self.forget_sr(uuid)
raise Exception(_('Unable to use SR %(sr_ref)s for'
' instance %(instance_name)s') % locals())
class VolumeOps(object):
"""
Management class for Volume-related tasks
"""
def __init__(self, session):
self._session = session
def attach_volume(self,
connection_info,
instance_name,
mountpoint,
hotplug=True):
"""Attach volume storage to VM instance."""
vm_ref = vm_utils.vm_ref_or_raise(self._session, instance_name)
# NOTE: No Resource Pool concept so far
LOG.debug(
_("Attach_volume: %(connection_info)s, %(instance_name)s,"
" %(mountpoint)s") % locals())
driver_type = connection_info['driver_volume_type']
if driver_type not in ['iscsi', 'xensm']:
raise exception.VolumeDriverNotFound(driver_type=driver_type)
connection_data = connection_info['data']
dev_number = volume_utils.get_device_number(mountpoint)
self._connect_volume(connection_data,
dev_number,
instance_name,
vm_ref,
hotplug=hotplug)
LOG.info(
_('Mountpoint %(mountpoint)s attached to'
' instance %(instance_name)s') % locals())
def _connect_volume(self,
connection_data,
dev_number,
instance_name,
vm_ref,
hotplug=True):
description = 'Disk-for:%s' % instance_name
uuid, label, sr_params = volume_utils.parse_sr_info(
connection_data, description)
# Introduce SR
try:
sr_ref = volume_utils.introduce_sr_unless_present(
self._session, uuid, label, sr_params)
LOG.debug(_('Introduced %(label)s as %(sr_ref)s.') % locals())
except self._session.XenAPI.Failure, exc:
LOG.exception(exc)
raise volume_utils.StorageError(
_('Unable to introduce Storage Repository'))
vdi_uuid = None
target_lun = None
if 'vdi_uuid' in connection_data:
vdi_uuid = connection_data['vdi_uuid']
elif 'target_lun' in connection_data:
target_lun = connection_data['target_lun']
else:
vdi_uuid = None
# Introduce VDI and attach VBD to VM
try:
vdi_ref = volume_utils.introduce_vdi(self._session, sr_ref,
vdi_uuid, target_lun)
except volume_utils.StorageError, exc:
LOG.exception(exc)
volume_utils.forget_sr_if_present(self._session, uuid)
raise Exception(
_('Unable to create VDI on SR %(sr_ref)s for'
' instance %(instance_name)s') % locals())
