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#!/bin/bash
# Copyright 2016 gRPC authors.
#
# 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.
#
# Builds docker image and runs a command under it.
# You should never need to call this script on your own.
set -ex
cd $(dirname $0)/../../..
git_root=$(pwd)
cd -
# Inputs
# DOCKERFILE_DIR - Directory in which Dockerfile file is located.
# DOCKER_RUN_SCRIPT - Script to run under docker (relative to grpc repo root)
# OUTPUT_DIR - Directory that will be copied from inside docker after finishing.
# DOCKERHUB_ORGANIZATION - If set, pull a prebuilt image from given dockerhub org.
# DOCKER_BASE_IMAGE - If set, pull the latest base image.
# $@ - Extra args to pass to docker run
# Use image name based on Dockerfile location checksum
DOCKER_IMAGE_NAME=$(basename $DOCKERFILE_DIR)_$(sha1sum $DOCKERFILE_DIR/Dockerfile | cut -f1 -d\ )
# Pull the base image to force an update
if [ "$DOCKER_BASE_IMAGE" != "" ]
then
time docker pull $DOCKER_BASE_IMAGE
fi
if [ "$DOCKERHUB_ORGANIZATION" != "" ]
then
DOCKER_IMAGE_NAME=$DOCKERHUB_ORGANIZATION/$DOCKER_IMAGE_NAME
time docker pull $DOCKER_IMAGE_NAME
else
# Make sure docker image has been built. Should be instantaneous if so.
docker build -t $DOCKER_IMAGE_NAME $DOCKERFILE_DIR
fi
# Choose random name for docker container
CONTAINER_NAME="build_and_run_docker_$(uuidgen)"
# Run command inside docker
docker run \
"$@" \
-e EXTERNAL_GIT_ROOT="/var/local/jenkins/grpc" \
-e THIS_IS_REALLY_NEEDED='see https://github.com/docker/docker/issues/14203 for why docker is awful' \
-v "$git_root:/var/local/jenkins/grpc:ro" \
-w /var/local/git/grpc \
--name=$CONTAINER_NAME \
$EXTRA_DOCKER_ARGS \
$DOCKER_IMAGE_NAME \
/bin/bash -l "/var/local/jenkins/grpc/$DOCKER_RUN_SCRIPT" || FAILED="true"
# Copy output artifacts
if [ "$OUTPUT_DIR" != "" ]
then
docker cp "$CONTAINER_NAME:/var/local/git/grpc/$OUTPUT_DIR" "$git_root" || FAILED="true"
fi
# remove the container, possibly killing it first
docker rm -f $CONTAINER_NAME || true
if [ "$FAILED" != "" ]
then
exit 1
fi
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