Book Image

OpenShift Multi-Cluster Management Handbook

By : Giovanni Fontana, Rafael Pecora
5 (1)
Book Image

OpenShift Multi-Cluster Management Handbook

5 (1)
By: Giovanni Fontana, Rafael Pecora

Overview of this book

For IT professionals working with Red Hat OpenShift Container Platform, the key to maximizing efficiency is understanding the powerful and resilient options to maintain the software development platform with minimal effort. OpenShift Multi-Cluster Management Handbook is a deep dive into the technology, containing knowledge essential for anyone who wants to work with OpenShift. This book starts by covering the architectural concepts and definitions necessary for deploying OpenShift clusters. It then takes you through designing Red Hat OpenShift for hybrid and multi-cloud infrastructure, showing you different approaches for multiple environments (from on-premises to cloud providers). As you advance, you’ll learn container security strategies to protect pipelines, data, and infrastructure on each layer. You’ll also discover tips for critical decision making once you understand the importance of designing a comprehensive project considering all aspects of an architecture that will allow the solution to scale as your application requires. By the end of this OpenShift book, you’ll know how to design a comprehensive Red Hat OpenShift cluster architecture, deploy it, and effectively manage your enterprise-grade clusters and other critical components using tools in OpenShift Plus.
Table of Contents (23 chapters)
Part 1 – Design Architectures for Red Hat OpenShift
Part 2 – Leverage Enterprise Products with Red Hat OpenShift
Part 3 – Multi-Cluster CI/CD on OpenShift Using GitOps
Part 4 – A Taste of Multi-Cluster Implementation and Security Compliance
Part 5 – Continuous Learning

Application deployment using OpenShift Pipelines and GitOps

This time, we are going to use ArgoCD to deploy the application instead of directly running the Kubernetes manifests. The pipeline is basically the same, but now the deploy task will run a YAML file that creates an ArgoCD application and wait until the application becomes healthy.

Figure 14.11 – Pipeline to build a Java Quarkus application and deploy it using ArgoCD

Run the following command to create and run the pipeline:

$ cd OpenShift-Multi-Cluster-Management-Handbook/chapter14/Deploy
$ oc apply -f Rolebindings/ # Permission required for Tekton to create an ArgoCD application
$ oc apply -f Pipeline/quarkus-build-and-deploy-pi.yaml
$ oc create -f PipelineRun/quarkus-build-and-deploy-pr.yaml

A new PipelineRun will be created to build the container image and create the ArgoCD application that will deploy the application. You will see the following if everything works well: