Set up multi-environment on Argo CD – Part 1

Key takeaways:

Showcase the management and scaling of effective ArgoCD deployments across multiple clusters efficiently and securely through GitOps practices.

Note:

This practical exercise is conducted on Windows

Pre-requisite:

• AWS CLI
• Azure CLI
• kubectl
• eksctl
• argocd-cli

Set up an AWS EKS Cluster

Create EKS cluster using eksctl

• When you utilize an eksctl YAML file for deployment or run a command to create a cluster, CloudFormation templates are deployed in the background. Essentially, it’s these CloudFormation templates that set up the clusters, with eksctl serving as a convenient wrapper around CloudFormation.

Execute the following command using the eksctl CLI with the specified parameters

eksctl create cluster –name eksargocd –region us-east-1 –nodes 1 –nodes-max 2 –zones us-east-1a,us-east-1b,us-east-1c

After executing the command, an EKS cluster should be successfully created on AWS

If you haven’t logged into AWS yet, you may encounter the following error

Then, you will need to log into AWS by executing the ‘aws configure’ command

Set Up Argo CD on Your EKS Cluster

Execute the command below to create an ArgoCD Namespace

kubectl create namespace argocd

This command will establish a new namespace within the EKS cluster.

Execute the installation script for Argo CD as provided by the project’s maintainers.

kubectl apply -n argocd -f  https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml

You have the option to verify the resources that were created

Obtain Access to Argo CD

There are two methods available to access ArgoCD

1. Configuring Port Forwarding for Accessing Argo CD

   Redirecting traffic to arbitrary ports, such as 8080
   kubectl port-forward svc/argocd-server -n argocd 8080:443

   
   Access from internet from browser

   http://localhost:8080

   use id: admin

   password: <base64 decoded password>

2. Utilizing a Load Balancer to Access Argo CD

   Modify argocd-server, execute the following command:
   kubectl edit svc argocd-server -n argocd

   

   

Substitute ClusterIP with LoadBalancer

 

Verify the argocd-server service

kubectl get svc argocd-server -n argocd

Access the LoadBalancer URL in your web browser

Retrieve the Argo CD default password

The default username is ‘admin’, and you can obtain the password using the following command

kubectl  -n argocd get secret argocd-initial-admin-secret -o jsonpath=”{.data.password}”

Decode the default password using base64decode.org.

Update the Argo CD default password

Access ArgoCD using the default password.

Navigate to “User info” in the left menu and proceed to click on the “UPDATE PASSWORD” button

Enter your new password and then click the “SAVE NEW PASSWORD” button.

Continued on part 2.