tools/internal_ci/helper_scripts/prepare_build_linux_rc - platform/external/grpc-grpc - Git at Google

 #!/bin/bash
 # Copyright 2017 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.

 # Source this rc script to prepare the environment for linux builds

 # Need to increase open files limit for c tests
 ulimit -n 32768

 # Move docker's storage location to scratch disk so we don't run out of space.
 echo 'DOCKER_OPTS="${DOCKER_OPTS} --graph=/tmpfs/docker"' | sudo tee --append /etc/default/docker
 # Use container registry mirror for pulling docker images (should make downloads faster)
 # See https://cloud.google.com/container-registry/docs/using-dockerhub-mirroring
 echo 'DOCKER_OPTS="${DOCKER_OPTS} --registry-mirror=https://mirror.gcr.io"' | sudo tee --append /etc/default/docker
 sudo service docker restart

 # Download Docker images from DockerHub
 export DOCKERHUB_ORGANIZATION=grpctesting

 git submodule update --init
	#!/bin/bash
	# Copyright 2017 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.

	# Source this rc script to prepare the environment for linux builds

	# Need to increase open files limit for c tests
	ulimit -n 32768

	# Move docker's storage location to scratch disk so we don't run out of space.
	echo 'DOCKER_OPTS="${DOCKER_OPTS} --graph=/tmpfs/docker"' \| sudo tee --append /etc/default/docker
	# Use container registry mirror for pulling docker images (should make downloads faster)
	# See https://cloud.google.com/container-registry/docs/using-dockerhub-mirroring
	echo 'DOCKER_OPTS="${DOCKER_OPTS} --registry-mirror=https://mirror.gcr.io"' \| sudo tee --append /etc/default/docker
	sudo service docker restart

	# Download Docker images from DockerHub
	export DOCKERHUB_ORGANIZATION=grpctesting

	git submodule update --init