ADD: added new version of protobuf

libs/protobuf/kokoro/linux/32-bit/build.sh

@@ -4,20 +4,15 @@
 # running the "pull request 32" project:
 #
 # This script selects a specific Dockerfile (for building a Docker image) and
-# a script to run inside that image.
-
-set -ex
+# a script to run inside that image.  Then we delegate to the general
+# build_and_run_docker.sh script.
 
 # Change to repo root
 cd $(dirname $0)/../../..
-GIT_REPO_ROOT=$(pwd)
 
-CONTAINER_IMAGE=gcr.io/protobuf-build/php/32bit@sha256:824cbdff02ee543eb69ee4b02c8c58cc7887f70f49e41725a35765d92a898b4f
-
-git submodule update --init --recursive
-
-docker run \
-  "$@" \
-  -v $GIT_REPO_ROOT:/workspace \
-  $CONTAINER_IMAGE \
-  bash -l "/workspace/kokoro/linux/32-bit/test_php.sh"
+export DOCKERHUB_ORGANIZATION=protobuftesting
+export DOCKERFILE_DIR=kokoro/linux/dockerfile/test/php_32bit
+export DOCKER_RUN_SCRIPT=kokoro/linux/pull_request_in_docker.sh
+export OUTPUT_DIR=testoutput
+export TEST_SET="php_all_32"
+./kokoro/linux/build_and_run_docker.sh