Automate the automation - CI demo

Overview

This repository contains a simple overview demo of OpenShift Pipelines (Tekton), including the new Pipelines-as-code feature.

The demo is based on parts from the excellent E-book Getting GitOps by Wanja Pernaut. Grab a copy yourself from the Red Hat Developers community .

There's two parts of the demo:

1. Create and run Tekton pipeline in the cluster

• Extend cluster with Tekton API's
• Add Tekton Pipelines and Tasks to the cluster from manifests stored in Git (./manifests/pipelines/)
• Run simple Pipeline to test and build a Quarkus application and deploy it to a development environment in OpenShift

2. Use pipelines-as-code to run pipelines in cluster

• CI infrastructure dynamically created in cluster. Everything stored in Git.
• Integrated as a GitHub App, triggers on Pull Request events.
• .tekton/pull-request.yaml

Demo time

Prerequisites

• Installed OpenShift cluster (tested with 4.10)
• cluster-admin privileges (to install OpenShift Pipelines operator)
• Configured settings.env file environment details

Install demo

Demo can be installed and configured with the included demo.sh script.

./demo.sh install

The install script will do the following:

• Install OpenShift Pipelines operator
• Add the pipelines-as-code component (currently tech preview)
• Create open-tour-ci namespace and install CI dependencies (Nexus)
• Create open-tour-dev namespace and install app servies (PostgreSQL)
• Create application Pipeline and custom Tasks to open-tour-ci namespace

Start Pipeline

Start additional PipelineRuns with the demo script.

./demo.sh start