Make Kokoro job pull Dockerimage from Dockerhub

kokoro/linux/build_and_run_docker.sh

@@ -11,15 +11,16 @@
 
 set -ex
 
-cd $(dirname $0)/..
+cd $(dirname $0)/../..
 git_root=$(pwd)
 cd -
 
-# Use image name based on Dockerfile location checksum
-DOCKER_IMAGE_NAME=$(basename $DOCKERFILE_DIR)_$(sha1sum $DOCKERFILE_DIR/Dockerfile | cut -f1 -d\ )
+# Use image name based on Dockerfile sha1
+DOCKERHUB_ORGANIZATION=grpctesting/protobuf
+DOCKER_IMAGE_NAME=${DOCKERHUB_ORGANIZATION}_$(sha1sum $DOCKERFILE_DIR/Dockerfile | cut -f1 -d\ )
 
-# Make sure docker image has been built. Should be instantaneous if so.
-docker build -t $DOCKER_IMAGE_NAME $DOCKERFILE_DIR
+# Pull dockerimage from Dockerhub
+docker pull $DOCKER_IMAGE_NAME
 
 # Ensure existence of ccache directory
 CCACHE_DIR=/tmp/protobuf-ccache
@@ -28,19 +29,21 @@ mkdir -p $CCACHE_DIR
 # Choose random name for docker container
 CONTAINER_NAME="build_and_run_docker_$(uuidgen)"
 
+echo $git_root
+
 # Run command inside docker
 docker run \
   "$@" \
   -e CCACHE_DIR=$CCACHE_DIR \
-  -e EXTERNAL_GIT_ROOT="/var/local/jenkins/protobuf" \
+  -e EXTERNAL_GIT_ROOT="/var/local/kokoro/protobuf" \
   -e TEST_SET="$TEST_SET" \
   -e THIS_IS_REALLY_NEEDED='see https://github.com/docker/docker/issues/14203 for why docker is awful' \
-  -v "$git_root:/var/local/jenkins/protobuf:ro" \
+  -v "$git_root:/var/local/kokoro/protobuf:ro" \
   -v $CCACHE_DIR:$CCACHE_DIR \
   -w /var/local/git/protobuf \
   --name=$CONTAINER_NAME \
   $DOCKER_IMAGE_NAME \
-  bash -l "/var/local/jenkins/protobuf/$DOCKER_RUN_SCRIPT" || FAILED="true"
+  bash -l "/var/local/kokoro/protobuf/$DOCKER_RUN_SCRIPT" || FAILED="true"
 
 # Copy output artifacts
 if [ "$OUTPUT_DIR" != "" ]

kokoro/linux/pull_request_in_docker.sh

@@ -5,7 +5,7 @@
 
 WORKSPACE_BASE=`pwd`
 MY_DIR="$(dirname "$0")"
-TEST_SCRIPT=$MY_DIR/../tests.sh
+TEST_SCRIPT=$MY_DIR/../../tests.sh
 BUILD_DIR=/tmp/protobuf
 
 set -e  # exit immediately on error
@@ -16,7 +16,7 @@ set -x  # display all commands
 rm -rf $BUILD_DIR
 mkdir -p $BUILD_DIR
 cd $BUILD_DIR
-git clone /var/local/jenkins/protobuf
+git clone /var/local/kokoro/protobuf
 cd protobuf
 
 # Set up the directory where our test output is going to go.
@@ -54,7 +54,7 @@ parallel --results $LOG_OUTPUT_DIR --joblog $OUTPUT_DIR/joblog $TEST_SCRIPT :::
 
 cat $OUTPUT_DIR/joblog
 
-# The directory that is copied from Docker back into the Jenkins workspace.
+# The directory that is copied from Docker back into the Kokoro workspace.
 COPY_FROM_DOCKER=/var/local/git/protobuf/testoutput
 mkdir -p $COPY_FROM_DOCKER
 TESTOUTPUT_XML_FILE=$COPY_FROM_DOCKER/testresults.xml