Environment Setup

Hands-on Lab Environment

This hands-on lab will be based on two OpenShift clusters. The first one has been already installed with OpenShift 4 Demo provided by RHPDS (https://demo.redhat.com), and the second one will be installed from ACM following the steps in this lab. Both Openshift clusters will run on Amazon Web Sservices public cloud:

  • Cluster local-cluster: It has been already installed. In this cluster you will install ACM/GitOps Operators and deploy applications.

  • Cluster rhte2023-cluster01: You will install the second Openshift cluster and deploy applications.

setup01

Tested versions:

  • Red Hat OpenShift 4.10

  • Red Hat Advanced Cluster Management 2.6

  • Gitops Operator 1.7

Also, the following CLI tools are required for running the exercises in this hands-on.

Please have them installed and configured before you get started.

Tool macOS Linux/Fedora

Git

Download

Download

Openshift client 4.10

Download

Download

ArgoCD CLI

Download

Download
You can launch an embedded command line terminal instance through the Web Terminal Operator. This terminal instance is preinstalled with common CLI tools for interacting with the cluster, such as oc, kubectl,odo, kn, tkn, helm, kubens, subctl, and kubectx. No argocd binaries are included.

Switching context between clusters

In order to easily switch between Openshift clusters in this lab, we will create a new context for the local-cluster.

  • Login into the local-cluster

Cluster admin user is opentlc-mgr instead of kubeadmin. 
oc login -u kubeadmin -p <password> --insecure-skip-tls-verify https://api.<your_cluster>:6443

  • Rename the current context to acm

oc config rename-context $(oc config current-context) acm

  • List acm context

oc config get-contexts acm

  • Check the new oc context works properly

oc --context acm get nodes

Hands-on Lab Git repository

You might fork the hands-on lab Git repository into your Github account as follows:

On GitHub.com, navigate to the https://github.com/xbryan1/rhte-2023-acm-apps repository.

In the top-right corner of the page, click Fork.

setup02

After it has been forked, clone it and change directory to the rhte-2023-acm-apps/rhte2023/ folder

git clone https://github.com/<your_github_account>/rhte-2023-acm-apps
cd rhte-2023-acm-apps/rhte2023/