PriceSmart Service

PriceSmart is a dynamic pricing engine built with Spring Boot, designed to demonstrate Istio's traffic management capabilities in a Kubernetes environment. The service provides a REST API to calculate product prices based on different pricing models (Global, Customer, and Subscription) controlled via environment variables.

Features

• Dynamic Pricing Models:
  • GLOBAL: Standard pricing for all users.
  • CUSTOMER: Applies "Happy Hour" (2 PM - 4 PM) and "Flash Sale" (random 1 in 3 chance) discounts.
  • SUBSCRIPTION: Premium tier pricing with base discounts and loyalty bonuses.
• Istio Ready: Designed for Canary deployments and traffic splitting experiments.
• Observability: Structured logging for tracking price calculations and discount applications.
• Actuator Enabled: Built-in health checks and metrics.

Tech Stack

• Java 21
• Spring Boot 4.0.2
• Maven
• Docker
• Kubernetes & Istio (for deployment)

API Endpoints

Get Product Price

GET /api/v1/price?productId={id}

Response Example:

{
  "id": "123",
  "name": "The Big Mac",
  "description": "The iconic double-decker with two 100% chicken patties and Special Sauce.",
  "price": 5.99,
  "model": "GLOBAL",
  "note": "Standard Global Pricing",
  "timestamp": "2026-02-05 19:15:00"
}

Getting Started

Prerequisites

• JDK 21
• Maven 3.9+
• Docker (optional)

Running Locally

./mvnw spring-boot:run

The service will be available at http://localhost:8080.

Building the JAR

./mvnw clean package

Docker Build

docker build -t pricing-service:latest .

Deployment with Istio

The repository includes Istio manifests in devops-setup/pricing-gitops to demonstrate advanced traffic routing:

1. Deploy the Service:

   kubectl apply -f devops-setup/pricing-gitops/deployment-v1.yaml
   kubectl apply -f devops-setup/pricing-gitops/deployment-v2.yaml
   kubectl apply -f devops-setup/pricing-gitops/deployment-v3.yaml

2. Configure Networking:

   kubectl apply -f devops-setup/pricing-gitops/gateway.yaml
   kubectl apply -f devops-setup/pricing-gitops/service.yaml
   kubectl apply -f devops-setup/pricing-gitops/destination-rule.yaml
   kubectl apply -f devops-setup/pricing-gitops/virtual-service.yaml

This setup will split traffic across three versions (v1: 40%, v2: 40%, v3: 20%).

License

Copyright 2026 Abhishek Roy. Licensed under the Apache License, Version 2.0.