def save(self, session=None):
if session is None:
session = db.api.get_connection()
client = session.client
path = self.etcd_path(self.uuid)
if self.path_already_exist(client, path):
raise exception.ComputeNodeAlreadyExists(field='UUID',
value=self.uuid)
client.write(path, json.dump_as_bytes(self.as_dict()))
return
def create_compute_node(self, context, values):
# ensure defaults are present for new compute nodes
if not values.get('uuid'):
values['uuid'] = uuidutils.generate_uuid()
compute_node = models.ComputeNode()
compute_node.update(values)
try:
compute_node.save()
except db_exc.DBDuplicateEntry:
raise exception.ComputeNodeAlreadyExists(
field='UUID', value=values['uuid'])
return compute_node
