def create_container(self, context, values):
# ensure defaults are present for new containers
if not values.get('uuid'):
values['uuid'] = uuidutils.generate_uuid()
if values.get('name'):
self._validate_unique_container_name(context, values['name'])
container = models.Container()
container.update(values)
try:
container.save()
except db_exc.DBDuplicateEntry:
raise exception.ContainerAlreadyExists(field='UUID',
value=values['uuid'])
return container
def _validate_unique_container_name(self, context, name):
if not CONF.compute.unique_container_name_scope:
return
lowername = name.lower()
base_query = model_query(models.Container).\
filter(func.lower(models.Container.name) == lowername)
if CONF.compute.unique_container_name_scope == 'project':
container_with_same_name = base_query.\
filter_by(project_id=context.project_id).count()
elif CONF.compute.unique_container_name_scope == 'global':
container_with_same_name = base_query.count()
else:
return
if container_with_same_name > 0:
raise exception.ContainerAlreadyExists(field='name',
value=lowername)
def _validate_unique_container_name(self, context, name):
if not CONF.compute.unique_container_name_scope:
return
lowername = name.lower()
filters = {'name': name}
if CONF.compute.unique_container_name_scope == 'project':
filters['project_id'] = context.project_id
elif CONF.compute.unique_container_name_scope == 'global':
pass
else:
return
try:
containers = self.list_containers(context, filters=filters)
except etcd.EtcdKeyNotFound:
return
except Exception as e:
LOG.error('Error occurred while retrieving container: %s',
six.text_type(e))
raise
if len(containers) > 0:
raise exception.ContainerAlreadyExists(field='name',
value=lowername)