Parallel custom job notebook execution (#120)

* Initial commit

* Added parallel execution

.cloud-build/execute_notebook_cli.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import argparse
+import ExecuteNotebook
+
+parser = argparse.ArgumentParser(description="Run changed notebooks.")
+parser.add_argument(
+    "--notebook_source",
+    type=str,
+    help="Local filepath or GCS URI to notebook.",
+    required=True,
+)
+parser.add_argument(
+    "--output_file_or_uri",
+    type=str,
+    help="Local file or GCS URI to save executed notebook to.",
+    required=True,
+)
+
+args = parser.parse_args()
+ExecuteNotebook.execute_notebook(
+    notebook_source=args.notebook_source,
+    output_file_or_uri=args.output_file_or_uri,
+    should_log_output=True,
+)