From b60d00f16f16a517377393233795588e6756836b Mon Sep 17 00:00:00 2001
From: Tomo Suzuki <suztomo@gmail.com>
Date: Wed, 7 Oct 2026 17:51:16 +0000
Subject: [PATCH] ci: update Kokoro build config

---
 .kokoro/build.sh      |  4 ++--
 .kokoro/common.cfg    | 20 ++++----------------
 .kokoro/trampoline.sh | 24 ------------------------
 3 files changed, 6 insertions(+), 42 deletions(-)
 delete mode 100755 .kokoro/trampoline.sh

diff --git a/.kokoro/build.sh b/.kokoro/build.sh
index eda70322e..81abc4195 100755
--- a/.kokoro/build.sh
+++ b/.kokoro/build.sh
@@ -16,7 +16,7 @@
 
 set -eo pipefail
 
-cd github/synthtool
+cd "$(dirname "$0")/.."
 
 # Disable buffering, so that the logs stream through.
 export PYTHONUNBUFFERED=1
@@ -25,4 +25,4 @@ export PYTHONUNBUFFERED=1
 nox -s lint test
 
 # remove all files, preventing kokoro from trying to sync them.
-rm -rf *
+rm -rf *
\ No newline at end of file
diff --git a/.kokoro/common.cfg b/.kokoro/common.cfg
index 653d0e51e..081634145 100644
--- a/.kokoro/common.cfg
+++ b/.kokoro/common.cfg
@@ -1,19 +1,7 @@
 # Format: //devtools/kokoro/config/proto/build.proto
 
-# Download trampoline resources.
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+build_file: "github/build-dir/.kokoro/build.sh"
 
-# Use the trampoline script to run in docker.
-build_file: "synthtool/.kokoro/trampoline.sh"
-
-# Configure the docker image for kokoro-trampoline.
-env_vars: {
-    key: "TRAMPOLINE_IMAGE"
-    value: "gcr.io/cloud-devrel-kokoro-resources/python"
-}
-
-# Tell the trampoline which build file to use.
-env_vars: {
-    key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/synthtool/.kokoro/build.sh"
-}
+container_properties {
+  docker_image: "us-central1-docker.pkg.dev/client-library-releases/release-images-prod/python-multi@sha256:7cbcd29934e457c5f8b146b31026e786e6e3f9e182fcbb00ab52331202b9bb9a"
+}
\ No newline at end of file
diff --git a/.kokoro/trampoline.sh b/.kokoro/trampoline.sh
deleted file mode 100755
index 0efc3be38..000000000
--- a/.kokoro/trampoline.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/bin/bash
-# Copyright 2017 Google Inc.
-#
-# 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.
-set -eo pipefail
-# Always run the cleanup script, regardless of the success of bouncing into
-# the container.
-function cleanup() {
-    chmod +x ${KOKORO_GFILE_DIR}/trampoline_cleanup.sh
-    ${KOKORO_GFILE_DIR}/trampoline_cleanup.sh
-    echo "cleanup";
-}
-trap cleanup EXIT
-python3 "${KOKORO_GFILE_DIR}/trampoline_v1.py"