jnks_node

Jenkins SSH based Agent Docker/Podman image

• RHEL8 based container acting as Jenkins agent, with Ansible, Terraform, Helm, kubectl

Description

The container built from this image is intended to be use on a RHEL7 system that by default does not contain podman-remote package.
In this case the only option to run a container agent is to use SSH, according to: https://www.jenkins.io/doc/book/using/using-agents/

This is a base image for Docker/Podman, which includes:

• Podman
• JDK and the Jenkins agent executable (agent.jar)
• Ansible package installed via pip
• Terraform binary installed from https://www.terraform.io/downloads
• Helm
• etc

Usage

1. Building a container from Dockerfile:

podman build --no-cache --squash-all -t jenkins-ansible-ssh-agent -f Containerfile

2. The container can be launched externally and attaches to Jenkins.

podman run -d --privileged --volume=$(pwd)/ansible:/home/jenkins/ansible -p 2222:22 --name jenkins-ansible-ssh-agent localhost/jenkins-ansible-ssh-agent    

after setting Remote root directory to /home/jenkins.

3. Execute ansible-playbook

podman exec -u=jenkins -w=/home/jenkins/ansible/ --tty jenkins-ansible-ssh-agent env TERM=xterm ansible-playbook get_facts.yml            

4. As another option, the same container can be also attached from a Jenkins pipeline as well