A complete Cloud Native DevOps Pipeline implementing CI/CD, GitOps, containerization, and Kubernetes deployment using modern DevOps tools.

This project demonstrates a production-style DevOps workflow where application code is automatically built, containerized, pushed to a registry, and deployed to Kubernetes through GitOps.

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Project Architecture

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Tech Stack

Category	Tools Used
Version Control	Git, GitHub
CI Pipeline	GitHub Actions
Containerization	Docker
Container Registry	DockerHub
GitOps	ArgoCD
Container Orchestration	Kubernetes
Infrastructure	Terraform

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Features

✔ Automated CI pipeline using GitHub Actions

✔ Docker image build and push to DockerHub

✔ Kubernetes deployment using manifests

✔ GitOps deployment with ArgoCD

✔ Automatic container image updates using ArgoCD Image Updater

✔ Scalable backend deployment (ReplicaSet)

✔ Infrastructure provisioning using Terraform

✔ Monitoring setup using Prometheus & Grafana

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Project Structure

cloud-native-devops-platform
│
├── .github
│   └── workflows
│       └── ci.yml
│
├── app
│   └── backend
│       ├── Dockerfile
│       └── application code
│
├── kubernetes
│   ├── deployment.yaml
│   ├── service.yaml
│   └── ingress.yaml
│
├── terraform
│   └── infrastructure configuration
│
├── monitoring
│   ├── prometheus
│   └── grafana
│
└── README.md

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CI/CD Workflow

Continuous Integration (CI)

Triggered when code is pushed to the main branch.

Pipeline Steps:

1. Checkout repository
2. Login to DockerHub
3. Build Docker image
4. Tag image using Git commit SHA
5. Push image to DockerHub

Example GitHub Actions pipeline:

Git Push
   ↓
GitHub Actions
   ↓
Docker Build
   ↓
Docker Push

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Continuous Deployment (CD)

Deployment is handled using GitOps with ArgoCD.

Workflow:

New Docker Image
        │
        ▼
ArgoCD Image Updater
        │
        ▼
Update Kubernetes Manifest
        │
        ▼
ArgoCD Sync
        │
        ▼
Kubernetes Deployment

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Docker Image

Docker images are pushed to DockerHub.

Repository:

https://hub.docker.com/r/dvanhu/devops-backend

Images are tagged using Git commit SHA for traceability.

Example:

dvanhu/devops-backend:ed17084659da4ab08...

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Kubernetes Deployment

The backend application is deployed using Kubernetes resources:

• Deployment
• ReplicaSet
• Service
• Ingress

GitOps with ArgoCD

ArgoCD continuously monitors the Git repository and ensures the Kubernetes cluster matches the declared state.

Application Status:

Healthy
Synced

Deployment graph:

Service
   ↓
Deployment
   ↓
ReplicaSet
   ↓
Pods

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Key DevOps Concepts Demonstrated

• CI/CD Automation
• Containerization
• GitOps Deployment
• Kubernetes Orchestration
• Infrastructure as Code
• Monitoring & Observability