def prep_resize(self, context, image, request_spec, filter_properties,
instance, instance_type, reservations):
"""Tries to call schedule_prep_resize on the driver.
Sets instance vm_state to ACTIVE on NoHostFound
Sets vm_state to ERROR on other exceptions
"""
instance_uuid = instance['uuid']
with compute_utils.EventReporter(context, conductor_api.LocalAPI(),
'schedule', instance_uuid):
try:
request_spec['num_instances'] = len(
request_spec['instance_uuids'])
hosts = self.driver.select_destinations(
context, request_spec, filter_properties)
host_state = hosts[0]
scheduler_utils.populate_filter_properties(filter_properties,
host_state)
# context is not serializable
filter_properties.pop('context', None)
(host, node) = (host_state['host'], host_state['nodename'])
attrs = ['metadata', 'system_metadata', 'info_cache',
'security_groups']
inst_obj = instance_obj.Instance._from_db_object(
context, instance_obj.Instance(), instance,
expected_attrs=attrs)
self.compute_rpcapi.prep_resize(
context, image, inst_obj, instance_type, host,
reservations, request_spec=request_spec,
filter_properties=filter_properties, node=node)
except exception.NoValidHost as ex:
vm_state = instance.get('vm_state', vm_states.ACTIVE)
self._set_vm_state_and_notify('prep_resize',
{'vm_state': vm_state,
'task_state': None},
context, ex, request_spec)
if reservations:
QUOTAS.rollback(context, reservations)
except Exception as ex:
with excutils.save_and_reraise_exception():
self._set_vm_state_and_notify('prep_resize',
{'vm_state': vm_states.ERROR,
'task_state': None},
context, ex, request_spec)
if reservations:
QUOTAS.rollback(context, reservations)
def _provision_resource(self, context, weighed_host, request_spec,
filter_properties, requested_networks, injected_files,
admin_password, is_first_time, instance_uuid=None,
legacy_bdm_in_spec=True):
"""Create the requested resource in this Zone."""
# NOTE(vish): add our current instance back into the request spec
request_spec['instance_uuids'] = [instance_uuid]
payload = dict(request_spec=request_spec,
weighted_host=weighed_host.to_dict(),
instance_id=instance_uuid)
self.notifier.info(context,
'scheduler.run_instance.scheduled', payload)
# Update the metadata if necessary
scheduler_hints = filter_properties.get('scheduler_hints') or {}
try:
updated_instance = driver.instance_update_db(context,
instance_uuid)
except exception.InstanceNotFound:
LOG.warning(_("Instance disappeared during scheduling"),
context=context, instance_uuid=instance_uuid)
else:
scheduler_utils.populate_filter_properties(filter_properties,
weighed_host.obj)
self.compute_rpcapi.run_instance(context,
instance=updated_instance,
host=weighed_host.obj.host,
request_spec=request_spec,
filter_properties=filter_properties,
requested_networks=requested_networks,
injected_files=injected_files,
admin_password=admin_password, is_first_time=is_first_time,
node=weighed_host.obj.nodename,
legacy_bdm_in_spec=legacy_bdm_in_spec)
