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GitHub Actions + AKS + Helm Charts Learning Guide

Overview

This guide provides a structured approach to learning GitHub Actions, Azure Kubernetes Service (AKS), and Helm Charts to help you build CI/CD pipelines and deploy applications efficiently.

1️⃣ GitHub Actions (CI/CD for Kubernetes)

What to Focus On?

✅ Understanding GitHub Actions workflows (.github/workflows/*.yaml) ✅ Setting up OIDC for Azure authentication ✅ Deploying Docker images to Azure Container Registry (ACR) ✅ Running Kubernetes deployments using GitHub Actions ✅ Automating AKS deployment using GitHub Actions

Resources

📖 GitHub Actions Docs

Example Workflow for AKS Deployment

name: Deploy to AKS
on: push
jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
      
      - name: Login to Azure
        uses: azure/login@v1
        with:
          client-id: ${{ secrets.AZURE_CLIENT_ID }}
          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
          subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
      
      - name: Deploy to AKS
        run: |
          az aks get-credentials --resource-group myResourceGroup --name myAKSCluster
          kubectl apply -f k8s/deployment.yaml

2️⃣ Azure Kubernetes Service (AKS)

What to Focus On?

✅ Understanding Kubernetes architecture (Pods, Services, Deployments, Ingress) ✅ Setting up AKS & configuring kubectl ✅ Deploying applications to AKS ✅ Managing AKS authentication & security (RBAC, Service Principals) ✅ Monitoring AKS workloads

Resources

📖 Microsoft AKS Docs

Basic AKS Setup Commands

# Get AKS credentials
az aks get-credentials --resource-group myResourceGroup --name myAKSCluster

# Verify connection
kubectl get nodes

3️⃣ Helm Charts (Kubernetes Package Management)

What to Focus On?

✅ Understanding Helm charts (values.yaml, Chart.yaml) ✅ Deploying applications using Helm ✅ Helm upgrade, rollback, and release management ✅ Customizing Helm charts for AKS ✅ Storing Helm charts in Azure Container Registry (ACR)

Resources

📖 Helm Official Docs

Basic Helm Commands

# Install an application using Helm
helm install myapp ./helm-chart --namespace mynamespace

# Upgrade an application
helm upgrade myapp ./helm-chart --namespace mynamespace

# Rollback a release
helm rollback myapp 1 --namespace mynamespace

🎯 Next Steps

  1. Set up a GitHub Actions pipeline to deploy a containerized application to AKS.
  2. Use Helm to package and deploy applications instead of kubectl apply.
  3. Automate deployments by integrating GitHub Actions with Helm.
  4. Monitor AKS workloads using Azure Monitor and Logs.

🚀 Happy Learning! Let me know if you need any clarifications!