def stub_cast_to_cells(context, instance, method, *args, **kwargs):
fn = getattr(ORIG_COMPUTE_API, method)
original_instance = kwargs.pop('original_instance', None)
if original_instance:
instance = original_instance
# Restore this in 'child cell DB'
db.instance_update(
context, instance['uuid'],
dict(vm_state=instance['vm_state'],
task_state=instance['task_state']))
# Use NoopQuotaDriver in child cells.
saved_quotas = quota.QUOTAS
quota.QUOTAS = quota.QuotaEngine(quota_driver=quota.NoopQuotaDriver())
compute_api.QUOTAS = quota.QUOTAS
try:
fn(context, instance, *args, **kwargs)
finally:
quota.QUOTAS = saved_quotas
compute_api.QUOTAS = saved_quotas
def stub_cast_to_cells(context, instance, method, *args, **kwargs):
fn = getattr(ORIG_COMPUTE_API, method)
original_instance = kwargs.pop('original_instance', None)
if original_instance:
instance = original_instance
# Restore this in 'child cell DB'
db.instance_update(context, instance['uuid'],
dict(vm_state=instance['vm_state'],
task_state=instance['task_state']))
# Use NoopQuotaDriver in child cells.
saved_quotas = quota.QUOTAS
quota.QUOTAS = quota.QuotaEngine(
quota_driver=quota.NoopQuotaDriver())
compute_api.QUOTAS = quota.QUOTAS
try:
fn(context, instance, *args, **kwargs)
finally:
quota.QUOTAS = saved_quotas
compute_api.QUOTAS = saved_quotas
def instance_update(context, instance_uuid, values, session=None):
"""Updates an existing VM instance in the Database"""
values = copy.deepcopy(values)
power_specs = values.pop('power_specs', None)
#Merge in the existing MetaData if they asked for Partial Updates
_instance_merge_metadata(context, instance_uuid, values)
#Delegate to the OpenStack method to actually update the Instance
inst_ref = db_api.instance_update(context, instance_uuid, values)
#If there were PowerSpecs provided, then insert them now
if power_specs is not None and inst_ref is not None:
instance_power_specs_update(
context, instance_uuid, power_specs, session)
#Query the Instance again to make sure the PowerSpecs is populated
inst_ref = db_api.instance_get_by_uuid(context, inst_ref['uuid'])
return inst_ref