1 files changed, 60 insertions, 0 deletions
diff --git a/kokoro/linux/build_and_run_docker.sh b/kokoro/linux/build_and_run_docker.sh
new file mode 100755
index 00000000..6a1f327a
--- /dev/null
+++ b/kokoro/linux/build_and_run_docker.sh
@@ -0,0 +1,60 @@
+#!/bin/bash
+#
+# Builds docker image and runs a command under it.
+# This is a generic script that is configured with the following variables:
+#
+# DOCKERFILE_DIR - Directory in which Dockerfile file is located.
+# DOCKER_RUN_SCRIPT - Script to run under docker (relative to protobuf repo root)
+# OUTPUT_DIR - Directory that will be copied from inside docker after finishing.
+# $@ - Extra args to pass to docker run
+
+
+set -ex
+
+cd $(dirname $0)/../..
+git_root=$(pwd)
+cd -
+
+# Use image name based on Dockerfile sha1
+DOCKERHUB_ORGANIZATION=grpctesting/protobuf
+DOCKER_IMAGE_NAME=${DOCKERHUB_ORGANIZATION}_$(sha1sum $DOCKERFILE_DIR/Dockerfile | cut -f1 -d\ )
+
+# Pull dockerimage from Dockerhub
+docker pull $DOCKER_IMAGE_NAME
+
+# Ensure existence of ccache directory
+CCACHE_DIR=/tmp/protobuf-ccache
+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=$CCACHE_DIR \
+  -e EXTERNAL_GIT_ROOT="/var/local/kokoro/protobuf" \
+  -e TEST_SET="$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/kokoro/protobuf:ro" \
+  -v $CCACHE_DIR:$CCACHE_DIR \
+  -w /var/local/git/protobuf \
+  --name=$CONTAINER_NAME \
+  $DOCKER_IMAGE_NAME \
+  bash -l "/var/local/kokoro/protobuf/$DOCKER_RUN_SCRIPT" || FAILED="true"
+
+# Copy output artifacts
+if [ "$OUTPUT_DIR" != "" ]
+then
+  docker cp "$CONTAINER_NAME:/var/local/git/protobuf/$OUTPUT_DIR" "${git_root}/kokoro" || FAILED="true"
+fi
+
+# remove the container, possibly killing it first
+docker rm -f $CONTAINER_NAME || true
+
+if [ "$FAILED" != "" ]
+then
+  exit 1
+fi