def forget_sr(self, sr_uuid):
sr_ref = VolumeHelper.find_sr_by_uuid(self._session, sr_uuid)
if sr_ref is None:
LOG.INFO(_('SR %s not found in the xapi database') % sr_uuid)
return
try:
VolumeHelper.forget_sr(self._session, sr_uuid)
except StorageError, exc:
LOG.exception(exc)
raise exception.Error(_('Could not forget SR'))
def forget_sr(self, sr_uuid):
sr_ref = VolumeHelper.find_sr_by_uuid(self._session, sr_uuid)
if sr_ref is None:
LOG.INFO(_('SR %s not found in the xapi database') % sr_uuid)
return
try:
VolumeHelper.forget_sr(self._session, sr_uuid)
except StorageError, exc:
LOG.exception(exc)
raise exception.Error(_('Could not forget SR'))
def introduce_sr(self, sr_uuid, label, params):
LOG.debug(_("Introducing SR %s") % label)
sr_ref = VolumeHelper.find_sr_by_uuid(self._session, sr_uuid)
if sr_ref:
LOG.debug(_('SR found in xapi database. No need to introduce'))
return sr_ref
sr_ref = VolumeHelper.introduce_sr(self._session, sr_uuid, label,
params)
if sr_ref is None:
raise exception.Error(_('Could not introduce SR'))
return sr_ref
def introduce_sr(self, sr_uuid, label, params):
LOG.debug(_("Introducing SR %s") % label)
sr_ref = VolumeHelper.find_sr_by_uuid(self._session, sr_uuid)
if sr_ref:
LOG.debug(_('SR found in xapi database. No need to introduce'))
return sr_ref
sr_ref = VolumeHelper.introduce_sr(self._session, sr_uuid, label,
params)
if sr_ref is None:
raise exception.Error(_('Could not introduce SR'))
return sr_ref
def create_sr(self, label, params):
LOG.debug(_("Creating SR %s") % label)
sr_ref = VolumeHelper.create_sr(self._session, label, params)
if sr_ref is None:
raise exception.Error(_('Could not create SR'))
sr_rec = self._session.call_xenapi("SR.get_record", sr_ref)
if sr_rec is None:
raise exception.Error(_('Could not retrieve SR record'))
return sr_rec['uuid']
def create_sr(self, label, params):
LOG.debug(_("Creating SR %s") % label)
sr_ref = VolumeHelper.create_sr(self._session, label, params)
if sr_ref is None:
raise exception.Error(_('Could not create SR'))
sr_rec = self._session.call_xenapi("SR.get_record", sr_ref)
if sr_rec is None:
raise exception.Error(_('Could not retrieve SR record'))
return sr_rec['uuid']
def detach_volume(self, connection_info, instance_name, mountpoint):
"""Detach volume storage to VM instance"""
# Before we start, check that the VM exists
vm_ref = VMHelper.lookup(self._session, instance_name)
if vm_ref is None:
raise exception.InstanceNotFound(instance_id=instance_name)
# Detach VBD from VM
LOG.debug(_("Detach_volume: %(instance_name)s, %(mountpoint)s")
% locals())
device_number = VolumeHelper.mountpoint_to_number(mountpoint)
try:
vbd_ref = VMHelper.find_vbd_by_number(self._session,
vm_ref, device_number)
except StorageError, exc:
LOG.exception(exc)
raise Exception(_('Unable to locate volume %s') % mountpoint)
def detach_volume(self, connection_info, instance_name, mountpoint):
"""Detach volume storage to VM instance"""
# Before we start, check that the VM exists
vm_ref = VMHelper.lookup(self._session, instance_name)
if vm_ref is None:
raise exception.InstanceNotFound(instance_id=instance_name)
# Detach VBD from VM
LOG.debug(
_("Detach_volume: %(instance_name)s, %(mountpoint)s") % locals())
device_number = VolumeHelper.mountpoint_to_number(mountpoint)
try:
vbd_ref = VMHelper.find_vbd_by_number(self._session, vm_ref,
device_number)
except StorageError, exc:
LOG.exception(exc)
raise Exception(_('Unable to locate volume %s') % mountpoint)
def attach_volume(self, connection_info, instance_name, mountpoint):
"""Attach volume storage to VM instance"""
# Before we start, check that the VM exists
vm_ref = VMHelper.lookup(self._session, instance_name)
if vm_ref is None:
raise exception.InstanceNotFound(instance_id=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)
data = connection_info['data']
if 'name_label' not in data:
label = 'tempSR-%s' % data['volume_id']
else:
label = data['name_label']
del data['name_label']
if 'name_description' not in data:
desc = 'Disk-for:%s' % instance_name
else:
desc = data['name_description']
LOG.debug(connection_info)
sr_params = {}
if u'sr_uuid' not in data:
sr_params = VolumeHelper.parse_volume_info(connection_info,
mountpoint)
uuid = "FA15E-D15C-" + str(sr_params['id'])
sr_params['sr_type'] = 'iscsi'
else:
uuid = data['sr_uuid']
for k in data['introduce_sr_keys']:
sr_params[k] = data[k]
sr_params['name_description'] = desc
# Introduce SR
try:
sr_ref = self.introduce_sr(uuid, label, sr_params)
LOG.debug(_('Introduced %(label)s as %(sr_ref)s.') % locals())
except self.XenAPI.Failure, exc:
LOG.exception(exc)
raise StorageError(_('Unable to introduce Storage Repository'))
def attach_volume(self, connection_info, instance_name, mountpoint):
"""Attach volume storage to VM instance"""
# Before we start, check that the VM exists
vm_ref = VMHelper.lookup(self._session, instance_name)
if vm_ref is None:
raise exception.InstanceNotFound(instance_id=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)
data = connection_info['data']
if 'name_label' not in data:
label = 'tempSR-%s' % data['volume_id']
else:
label = data['name_label']
del data['name_label']
if 'name_description' not in data:
desc = 'Disk-for:%s' % instance_name
else:
desc = data['name_description']
LOG.debug(connection_info)
sr_params = {}
if u'sr_uuid' not in data:
sr_params = VolumeHelper.parse_volume_info(connection_info,
mountpoint)
uuid = "FA15E-D15C-" + str(sr_params['id'])
sr_params['sr_type'] = 'iscsi'
else:
uuid = data['sr_uuid']
for k in data['introduce_sr_keys']:
sr_params[k] = data[k]
sr_params['name_description'] = desc
# Introduce SR
try:
sr_ref = self.introduce_sr(uuid, label, sr_params)
LOG.debug(_('Introduced %(label)s as %(sr_ref)s.') % locals())
except self.XenAPI.Failure, exc:
LOG.exception(exc)
raise StorageError(_('Unable to introduce Storage Repository'))
def is_sr_on_host(self, sr_uuid):
LOG.debug(_('Checking for SR %s') % sr_uuid)
sr_ref = VolumeHelper.find_sr_by_uuid(self._session, sr_uuid)
if sr_ref:
return True
return False
# Introduce SR
try:
sr_ref = self.introduce_sr(uuid, label, sr_params)
LOG.debug(_('Introduced %(label)s as %(sr_ref)s.') % locals())
except self.XenAPI.Failure, exc:
LOG.exception(exc)
raise StorageError(_('Unable to introduce Storage Repository'))
if 'vdi_uuid' in data:
vdi_uuid = data['vdi_uuid']
else:
vdi_uuid = None
# Introduce VDI and attach VBD to VM
try:
vdi_ref = VolumeHelper.introduce_vdi(self._session, sr_ref,
vdi_uuid)
except 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 = VolumeHelper.mountpoint_to_number(mountpoint)
try:
vbd_ref = VolumeHelper.create_vbd(self._session,
vm_ref,
vdi_ref,
dev_number,
False)
except self.XenAPI.Failure, exc:
LOG.exception(exc)
def is_sr_on_host(self, sr_uuid):
LOG.debug(_('Checking for SR %s') % sr_uuid)
sr_ref = VolumeHelper.find_sr_by_uuid(self._session, sr_uuid)
if sr_ref:
return True
return False
# Introduce SR
try:
sr_ref = self.introduce_sr(uuid, label, sr_params)
LOG.debug(_('Introduced %(label)s as %(sr_ref)s.') % locals())
except self.XenAPI.Failure, exc:
LOG.exception(exc)
raise StorageError(_('Unable to introduce Storage Repository'))
if 'vdi_uuid' in data:
vdi_uuid = data['vdi_uuid']
else:
vdi_uuid = None
# Introduce VDI and attach VBD to VM
try:
vdi_ref = VolumeHelper.introduce_vdi(self._session, sr_ref,
vdi_uuid)
except 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 = VolumeHelper.mountpoint_to_number(mountpoint)
try:
vbd_ref = VolumeHelper.create_vbd(self._session, vm_ref, vdi_ref,
dev_number, False)
except self.XenAPI.Failure, exc:
LOG.exception(exc)
self.forget_sr(uuid)
raise Exception(
