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#!/bin/bash
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# Copyright 2015, Google Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# Initializes a fresh GCE VM to become a jenkins linux worker.
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# You shouldn't run this script on your own, use create_linux_worker.sh
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# instead.
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set -ex
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# Create some swap space
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sudo dd if=/dev/zero of=/swap bs=1024 count=10485760
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sudo chmod 600 /swap
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sudo mkswap /swap
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sudo sed -i '$ a\/swap none swap sw 0 0' /etc/fstab
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sudo swapon -a
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# Typical apt-get maintenance
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sudo apt-get update
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# Install JRE
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sudo apt-get install -y openjdk-8-jre
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sudo apt-get install -y unzip lsof
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# Install Docker
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curl -sSL https://get.docker.com/ | sh
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# Setup jenkins user (or the user will already exist bcuz magic)
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sudo adduser jenkins --disabled-password || true
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# Enable jenkins to use docker without sudo:
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sudo usermod -aG docker jenkins
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# Use "overlay" storage driver for docker
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# see https://github.com/grpc/grpc/issues/4988
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echo 'DOCKER_OPTS="${DOCKER_OPTS} --storage-driver=overlay"' | sudo tee --append /etc/default/docker
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# Install RVM
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# TODO(jtattermusch): why is RVM needed?
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gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
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curl -sSL https://get.rvm.io | bash -s stable --ruby
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# Add pubkey of jenkins@grpc-jenkins-master to authorized keys of jenkins@
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# This needs to happen as the last step to prevent Jenkins master from connecting
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# to a machine that hasn't been properly setup yet.
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cat jenkins_master.pub | sudo tee --append ~jenkins/.ssh/authorized_keys
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# Restart for docker to pickup the config changes.
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echo 'Successfully initialized the linux worker, going for reboot in 10 seconds'
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sleep 10
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sudo reboot
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