GoIT ArgoCD Demo

The project demonstrates a GitOps approach to deploying applications to Kubernetes (EKS) via ArgoCD. Changes in Git are automatically applied to the cluster.

Repo structure

goit-argo/
├── namespaces/
│   ├── application/
│   │   ├── nginx.yaml      # Deployment + nginx service
│   │   └── ns.yaml         # Namespace: application
│   └── infra-tools/
│       └── ns.yaml         # Namespace: infra-tools
├── application.yaml        # ArgoCD Application manifesto
└── README.md

Prerequisites

• AWS CLI configured with terraform-admin profile
• Terraform >= 1.0
• kubectl
• EKS cluster created via Terraform

Infrastructure launch

1. Create EKS cluster

cd eks-vpc-cluster
terraform init
terraform apply

2. Connect kubectl to the cluster

aws eks --region eu-central-1 update-kubeconfig \
  --name eks-cluster \
  --profile terraform-admin

3. Deploy ArgoCD

cd terraform/argocd
terraform init
terraform apply

4. Check that ArgoCD has started

kubectl get pods -n infra-tools

There should be 7 pods with the argocd- prefix in the Running status.

Access to the ArgoCD UI

1. Get password

kubectl -n infra-tools get secret argocd-initial-admin-secret \
  -o jsonpath="{.data.password}" | base64 -d

2. Open port-forward

kubectl port-forward svc/argocd-server -n infra-tools 8080:80

3. Open browser

Перейти на http://localhost:8080

• Username: admin
• Password: from the previous step

Application deployment via ArgoCD

1. Apply Application Manifest

kubectl apply -f application.yaml

2. Check status

kubectl get applications -n infra-tools

Expected result: NAME SYNC STATUS HEALTH STATUS nginx Synced Healthy

3. Check pods

kubectl get pods -n application

There should be 2 demo-nginx pods in Running status.

Access to nginx

kubectl port-forward svc/demo-nginx 8080:80 -n application

Open browser: http://localhost:8080

Infrastructure removal

Remove in reverse order:

# 1. Видалити ArgoCD
cd terraform/argocd
terraform destroy

# 2. Видалити EKS і VPC
cd eks-vpc-cluster
terraform destroy

Link

• Repo with application.yaml
• Terraform Registry — ArgoCD Helm Chart