Why Choose This Project

In modern cloud applications, zero-downtime deployments are essential for continuous delivery. Traditional update methods often lead to downtime or errors in production.
Blue-Green and Canary deployments are advanced strategies that allow safe, controlled, and seamless rollouts in Kubernetes.
This project demonstrates progressive delivery, rollback mechanisms, and real-world DevOps practices.

What You Get

• Hands-on implementation of Blue-Green deployment strategy in Kubernetes.

• Canary deployments with traffic splitting to test new versions.

• Automated rollback mechanisms for failed releases.

• Integration with service mesh (Istio/Linkerd) or Ingress controllers.

• Real-world CI/CD pipeline integration.

• A demo microservice to visualize version switching in real-time.

Key Features

Technology Stack

Frontend Layer

• React / Angular (demo app UI)

• NGINX / Kubernetes Ingress

Backend Layer

• Kubernetes Pods (microservices)

• Dockerized services

Orchestration & Deployment

• Kubernetes (EKS / AKS / GKE / Minikube for demo)

• Istio or NGINX Ingress Controller

CI/CD & DevOps

• Jenkins / GitHub Actions / Argo CD

• Helm / Kustomize for deployment templates

Monitoring & Security

• Prometheus + Grafana (metrics)

• Jaeger (tracing, optional)

Working Flow

1. Developer pushes a new microservice version to GitHub.

2. CI/CD pipeline builds and pushes Docker image to registry (ECR/ACR/GCR).

3. Deployment pipeline applies Kubernetes manifests via Helm/Kustomize.

4. Blue-Green Strategy:

   • Both Blue (v1) and Green (v2) versions run in parallel.

   • LoadBalancer/Ingress switches traffic from Blue → Green.

5. Canary Strategy:

   • Start with 10% traffic → increase to 50% → 100%.

   • If metrics fail, rollback to stable version.

6. Monitoring dashboards track latency, error rate, and request load.

Main Modules

1. Deployment Manager – Handles Blue-Green and Canary rollout configs.

2. Traffic Router – Manages Ingress rules or Istio VirtualService for traffic split.

3. CI/CD Integrator – Automates build and deployment with rollback.

4. Monitoring & Alerting – Collects metrics, detects anomalies.

Security Features

• TLS for secure service-to-service communication.

• Role-Based Access Control (RBAC) in Kubernetes.

• Automated policy checks using OPA/Gatekeeper.

• Canary safety checks to prevent faulty rollouts.