GitOps CI/CD Demo

This repository contains the GitOps configuration and CI/CD implementation for the GitOps CI/CD demonstration.

It will deploy the Greeting Application using OpenShift Pipelines (Tekton) & OpenShift GitOps (ArgoCD). The Greeting Application consists of the following components:

• greeting-api.
• greeting-ui

Kustomize is used to configure the Kubernetes resources for the applications. The configuration can be found in the following repositories:

• greeting-api-k8s.
• greeting-ui-k8s

Prerequisites

• Access to an OpenShift cluster
• oc CLI client
• OpenShift Pipelines (Tekton) installed on the cluster
• OpenShift GitOps (ArgoCD) installed on the cluster
• The following namespaces:
  • demo-gitops-cicd-cicd
  • demo-gitops-cicd-gitops
  • demo-gitops-cicd-dev
  • demo-gitops-cicd-stage
  • demo-gitops-cicd-prod
• At least edit permissions on the demo-gitops-cicd-gitops namespace
• An instance of ArgoCD with access to manage the above namespaces deployed to demo-gitops-cicd-gitops

Note: See tom-stockwell/ocp-tenants//tenants/demo-gitops-cicd for an example of the namespace configuration.

Installation

Once the ArgoCD applications have been created, ArgoCD will manage both the applications and CI/CD configuration. Run the following command to bootstrap the ArgoCD applications.

cluster=homelab
oc apply -k clusters/$cluster/gitops

If using an older version of kubectl or oc that does not support kustomize, you can achieve the same effect with the following:

kustomize build . | oc apply -f -