README.md

jenkins-slave-linux

Initialize build environment of jenkins slaves (Linux), via a Jenkins pipeline job.

Linux Distro

Ubuntu Server 16.04 LTS (xenial).

Prerequisites

Important

Perform the following steps on jenkins slave.

Install Java 8

Note: this only needs to be done once.

./java8-oracle.sh

Otherwise jenkins master won't be able to connect to slave via SSH.

Remove password requirement from group sudo

Note: this only needs to be done once.

echo "%sudo ALL=(ALL:ALL) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/50-group-sudo-nopasswd

Otherwise you will see the following error when running pipeline:

sudo: no tty present and no askpass program specified

Temporarily grant sudo privilege

Some scripts need sudo to install system-level packages.

Before running the pipeline, temporarily add jenkins slave user to group sudo.

sudo gpasswd -a [username] sudo

After running the pipeline, be a good linux citizen and remove jenkins slave user from group sudo, so jenkins slave is running with least privilege.

sudo gpasswd -d [username] sudo

Additional Notes

After running the pipeline, you may need to Disconnect / Relaunch jenkins slave agent to pickup new environment variables set in $HOME/.bashrc.