This repository sets up an automated CI/CD pipeline for a Go-based web application using GitHub Actions. It integrates Docker for containerization and GitOps deployment using Helm and ArgoCD on Kubernetes.

Located at .github/workflows/ci-cd.yml, this workflow automates the build, test, image creation, and deployment stages for the Go app.

1. Build & Test

   • Sets up Go (1.22)
   • Builds the app binary
   • Runs unit tests

2. Code Quality (Linting)

   • Uses golangci-lint to analyze the code for best practices and issues

3. Docker Image

   • Builds and pushes a Docker image to Docker Hub
   • Tags image with GitHub workflow run ID

4. Helm Chart Update

   • Updates the image.tag in helm/go-web-app-chart/values.yaml
   • Commits and pushes the change to Git

5. GitOps Deployment

   • ArgoCD detects the Helm chart update and syncs the Kubernetes cluster accordingly

Add the following secrets under GitHub → Settings → Secrets and variables → Actions:

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

# Expose ArgoCD UI via LoadBalancer
kubectl patch svc argocd-server -n argocd -p '{"spec": {"type": "LoadBalancer"}}'

If you're using AKS (Azure Kubernetes Service), you can install NGINX with:

kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.13.0/deploy/static/provider/cloud/deploy.yaml

For other platforms like GKE, EKS, Minikube etc., refer to the official documentation:
https://kubernetes.github.io/ingress-nginx/deploy/

Map the domain from your Ingress config to the controller IP in /etc/hosts:

<INGRESS_IP>   go-web-app.local

This repo automates the CI/CD of a Go web app using GitHub Actions, Docker, and GitOps deployment via Helm and ArgoCD to Kubernetes.