def get_task_signature(cls, backup, serialized_backup, force=False, **kwargs):
serialized_snapshots = [
core_utils.serialize_instance(snapshot)
for snapshot in backup.snapshots.all()
]
_tasks = [
core_tasks.StateTransitionTask().si(
serialized_backup, state_transition='begin_deleting'
)
]
for serialized_snapshot in serialized_snapshots:
_tasks.append(
core_tasks.BackendMethodTask().si(
serialized_snapshot,
'delete_snapshot',
state_transition='begin_deleting',
)
)
for serialized_snapshot in serialized_snapshots:
_tasks.append(
core_tasks.PollBackendCheckTask().si(
serialized_snapshot, 'is_snapshot_deleted'
)
)
_tasks.append(core_tasks.DeletionTask().si(serialized_snapshot))
return chain(*_tasks)
def get_failure_signature(cls,
instance,
serialized_instance,
force=False,
**kwargs):
if force:
return tasks.DeletionTask().si(serialized_instance)
else:
return tasks.ErrorStateTransitionTask().s(serialized_instance)
def get_success_signature(cls, instance, serialized_instance, **kwargs):
return tasks.DeletionTask().si(serialized_instance)
def get_success_signature(cls, instance, serialized_instance, **kwargs):
# Delete project itself if all task have been completed successfully
return core_tasks.DeletionTask().si(serialized_instance)
def get_deletion_task(cls, instance, serialized_instance):
serialized_vm = core_utils.serialize_instance(instance.vm)
return chain(
core_tasks.DeletionTask().si(serialized_instance),
VirtualMachineUpdatedNotificationTask().si(serialized_vm),
)
