def create_volume(self,
context,
volume_id,
request_spec=None,
filter_properties=None,
allow_reschedule=True,
snapshot_id=None,
image_id=None,
source_volid=None):
"""Creates and exports the volume."""
flow = create_volume.get_manager_flow(
self.db,
self.driver,
self.scheduler_rpcapi,
self.host,
volume_id,
request_spec=request_spec,
filter_properties=filter_properties,
allow_reschedule=allow_reschedule,
snapshot_id=snapshot_id,
image_id=image_id,
source_volid=source_volid,
reschedule_context=context.deepcopy())
assert flow, _('Manager volume flow not retrieved')
flow.run(context.elevated())
if flow.state != states.SUCCESS:
raise exception.CinderException(
_("Failed to successfully complete"
" manager volume workflow"))
self._reset_stats()
return volume_id
def create_volume(self, context, volume_id, request_spec=None,
filter_properties=None, allow_reschedule=True,
snapshot_id=None, image_id=None, source_volid=None):
"""Creates and exports the volume."""
flow = create_volume.get_manager_flow(
self.db,
self.driver,
self.scheduler_rpcapi,
self.host,
volume_id,
request_spec=request_spec,
filter_properties=filter_properties,
allow_reschedule=allow_reschedule,
snapshot_id=snapshot_id,
image_id=image_id,
source_volid=source_volid,
reschedule_context=context.deepcopy())
assert flow, _('Manager volume flow not retrieved')
flow.run(context.elevated())
if flow.state != states.SUCCESS:
raise exception.CinderException(_("Failed to successfully complete"
" manager volume workflow"))
self._reset_stats()
return volume_id
def create_volume(self, context, volume_id, request_spec=None,
filter_properties=None, allow_reschedule=True,
snapshot_id=None, image_id=None, source_volid=None):
"""Creates and exports the volume."""
context_saved = context.deepcopy()
context = context.elevated()
if filter_properties is None:
filter_properties = {}
try:
flow_engine = create_volume.get_manager_flow(
context,
self.db,
self.driver,
self.scheduler_rpcapi,
self.host,
volume_id,
snapshot_id=snapshot_id,
image_id=image_id,
source_volid=source_volid,
allow_reschedule=allow_reschedule,
reschedule_context=context_saved,
request_spec=request_spec,
filter_properties=filter_properties)
except Exception:
LOG.exception(_("Failed to create manager volume flow"))
raise exception.CinderException(
_("Failed to create manager volume flow"))
if snapshot_id is not None:
# Make sure the snapshot is not deleted until we are done with it.
locked_action = "%s-%s" % (snapshot_id, 'delete_snapshot')
elif source_volid is not None:
# Make sure the volume is not deleted until we are done with it.
locked_action = "%s-%s" % (source_volid, 'delete_volume')
else:
locked_action = None
def _run_flow():
# This code executes create volume flow. If something goes wrong,
# flow reverts all job that was done and reraises an exception.
# Otherwise, all data that was generated by flow becomes available
# in flow engine's storage.
flow_engine.run()
@utils.synchronized(locked_action, external=True)
def _run_flow_locked():
_run_flow()
if locked_action is None:
_run_flow()
else:
_run_flow_locked()
# Fetch created volume from storage
volume_ref = flow_engine.storage.fetch('volume')
# Update volume stats
self.stats['allocated_capacity_gb'] += volume_ref['size']
return volume_ref['id']
def create_volume(self,
context,
volume_id,
request_spec=None,
filter_properties=None,
allow_reschedule=True,
snapshot_id=None,
image_id=None,
source_volid=None):
"""Creates and exports the volume."""
context_saved = context.deepcopy()
context = context.elevated()
if filter_properties is None:
filter_properties = {}
try:
flow_engine = create_volume.get_manager_flow(
context,
self.db,
self.driver,
self.scheduler_rpcapi,
self.host,
volume_id,
snapshot_id=snapshot_id,
image_id=image_id,
source_volid=source_volid,
allow_reschedule=allow_reschedule,
reschedule_context=context_saved,
request_spec=request_spec,
filter_properties=filter_properties)
except Exception:
LOG.exception(_("Failed to create manager volume flow"))
raise exception.CinderException(
_("Failed to create manager volume flow"))
if snapshot_id is not None:
# Make sure the snapshot is not deleted until we are done with it.
locked_action = "%s-%s" % (snapshot_id, 'delete_snapshot')
elif source_volid is not None:
# Make sure the volume is not deleted until we are done with it.
locked_action = "%s-%s" % (source_volid, 'delete_volume')
else:
locked_action = None
def _run_flow():
# This code executes create volume flow. If something goes wrong,
# flow reverts all job that was done and reraises an exception.
# Otherwise, all data that was generated by flow becomes available
# in flow engine's storage.
flow_engine.run()
@utils.synchronized(locked_action, external=True)
def _run_flow_locked():
_run_flow()
if locked_action is None:
_run_flow()
else:
_run_flow_locked()
# Fetch created volume from storage
volume_ref = flow_engine.storage.fetch('volume')
return volume_ref['id']
