Jenkins Systemd party time

[OLD]jenkins-slave-light-jobs.conf

env SLAVE="coachman02"
env JTYPE="light-jobs"
env SECRET="1292eddf31b08baad457d2c781cd109f34fd2f2912808224fa2ed8542290a162"

description "Jenkins Slave (for $JTYPE)"
author "Leah Klearman <leah@swiftstack.com>"

start on (local-filesystems and net-device-up IFACE!=lo)
stop on runlevel [016]

respawn

pre-start script
    mkdir -p /var/lib/jenkins/${JTYPE}/log
    cp /var/lib/jenkins/slave.jar /var/lib/jenkins/${JTYPE}/
    chown -R jenkins:jenkins /var/lib/jenkins/${JTYPE}/
end script

exec su -s /bin/bash -c "cd /var/lib/jenkins/${JTYPE}; java -Dhudson.util.ProcessTree.disable=true -jar slave.jar -jnlpUrl https://carson.swiftstack.com/computer/${SLAVE}-${JTYPE}/slave-agent.jnlp -secret $SECRET -auth service:eYaclsG3hLZnsXc >> /var/lib/jenkins/${JTYPE}/log/slave.log 2>&1" jenkins

README

You put the service file in `/lib/systemd/system/`
On each server, for each slave name, create a file named
/var/lib/jenkins/SLAVENAME.env
and edit it to have right SLAVE and SECRET values.

Then make one symlink like this for each slave name (e.g. "light-jobs" or "medium-jobs" or "tasks":

ln -s /lib/systemd/system/jenkins-slave@.service /etc/systemd/system/multi-user.target.wants/jenkins-slave@THENAME.service

e.g.

ln -s /lib/systemd/system/jenkins-slave@.service /etc/systemd/system/multi-user.target.wants/jenkins-slave@light-jobs.service

Then they'll start on boot.  To start by hand:  systemctl start jenkins-slave@light-jobs

jenkins-slave@.service

[Unit]
Description=Jenkins Slave for %i
Requires=local-fs.target network.target network-online.target
After=local-fs.target network.target network-online.target

[Service]
EnvironmentFile=/var/lib/jenkins/%i.env

ExecStartPre=/bin/mkdir -p /var/lib/jenkins/%i/log
ExecStartPre=/bin/cp /var/lib/jenkins/slave.jar /var/lib/jenkins/%i/
ExecStartPre=/bin/chown -R jenkins:jenkins /var/lib/jenkins/%i/
ExecStart=/bin/su -s /bin/bash -c "cd /var/lib/jenkins/%i; java -Dhudson.util.ProcessTree.disable=true -jar ../slave.jar -jnlpUrl https://carson.swiftstack.com/computer/${SLAVE}-%i/slave-agent.jnlp -secret $SECRET -auth service:eYaclsG3hLZnsXc >> /var/lib/jenkins/%i/log/slave.log 2>&1" jenkins

Restart=always
RestartSec=10
StartLimitInterval=61s

[Install]
WantedBy=multi-user.target

light-jobs.env

# Put me in /var/lib/jenkins/light-jobs.env

SLAVE=coachman02
SECRET=1292eddf31b08baad457d2c781cd109f34fd2f2912808224fa2ed8542290a162