Why Choose This Project?

Monolithic applications are hard to scale, maintain, and deploy as they grow. Microservices architecture solves this by breaking applications into independent services that can be developed, deployed, and scaled individually. With Kubernetes orchestration, these microservices can be deployed in containers, auto-scaled, load-balanced, and made resilient to failures.

This project showcases how a cloud-native microservices system can be deployed, managed, and scaled using Kubernetes.

What You Get

• A cloud-native microservices app with independent services.

• Kubernetes orchestration with automatic scaling and service discovery.

• Centralized logging and monitoring for visibility.

• Resilient, fault-tolerant application design.

Key Features

Technology Stack

Core

• Microservices – Written in Java (Spring Boot) / Node.js / Python (Flask/FastAPI).

• Docker – Containerization for each service.

• Kubernetes (K8s) – Service orchestration.

Supporting Tools

• API Gateway – NGINX / Kong / Spring Cloud Gateway.

• Service Discovery – Kubernetes DNS, Istio service mesh.

• Database – PostgreSQL, MongoDB, or per-service DB.

• Message Broker – Kafka / RabbitMQ for async communication.

Monitoring & Security

• Prometheus + Grafana (metrics).

• EFK (Elasticsearch, Fluentd, Kibana) logging stack.

• Kubernetes RBAC + Secrets for secure config.

Working Flow

1. User Request → Sent to API Gateway (single entry point).

2. Gateway Routing → Request routed to respective microservice (e.g., User Service, Order Service).

3. Microservice Execution → Each service runs independently in its container.

4. Inter-Service Communication → Services communicate via REST APIs or messaging (Kafka/RabbitMQ).

5. Database Access → Each microservice manages its own database.

6. Kubernetes Orchestration → Manages pod scaling, networking, and fault recovery.

7. Monitoring & Logging → Metrics tracked, logs centralized, alerts triggered on failures.

Main Modules

1. User Service – Manages user registration, login, authentication.

2. Product/Inventory Service – Manages product catalog and stock.

3. Order Service – Handles orders, payments, and transactions.

4. Notification Service – Sends emails, SMS, or push notifications.

5. API Gateway – Routes requests and handles load balancing.

6. Kubernetes Cluster – Orchestrates services with scaling and self-healing.

Security Features

• TLS for all API communications.

• Kubernetes RBAC to limit access.

• Secrets Manager (K8s secrets, HashiCorp Vault).

• JWT/OAuth2 authentication for user requests.

• Network policies to restrict pod-to-pod traffic.

Visualization Options

• Kubernetes Dashboard (service health, pod scaling).

• Prometheus + Grafana (CPU, memory, request latency).

• EFK stack (log aggregation).

• API Gateway dashboards (traffic, latency, failures).