feat: allow creating featurestore without online node (#1180)

Author: morgandu

google/cloud/aiplatform/featurestore/featurestore.py

@@ -447,7 +447,7 @@ def create(
  The value must be unique within the project and location.
  online_store_fixed_node_count (int):
  Optional. Config for online serving resources.
- When not specified, default node count is 1. The
+ When not specified, no fixed node count for online serving. The
  number of nodes will not scale automatically but
  can be scaled manually by providing different
  values when updating.
@@ -496,7 +496,7 @@ def create(
  """
  gapic_featurestore = gca_featurestore.Featurestore(
  online_serving_config=gca_featurestore.Featurestore.OnlineServingConfig(
- fixed_node_count=online_store_fixed_node_count or 1
+ fixed_node_count=online_store_fixed_node_count
  )
  )
 

tests/system/aiplatform/test_featurestore.py

@@ -65,7 +65,9 @@ def test_create_get_list_featurestore(self, shared_state):
  featurestore_id = self._make_display_name(key=_TEST_FEATURESTORE_ID).replace(
  "-", "_"
  )[:60]
- featurestore = aiplatform.Featurestore.create(featurestore_id=featurestore_id)
+ featurestore = aiplatform.Featurestore.create(
+ featurestore_id=featurestore_id, online_store_fixed_node_count=1
+ )
 
  shared_state["resources"] = [featurestore]
  shared_state["featurestore"] = featurestore