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Change-Id: I9c68c43e939d2c1a3b95a68b71ecc5ba861a4df5

2026-03-05 13:37:56 +00:00

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online-boutique

Overview

online-boutique is a production-ready Java microservice built using the Kyndryl Platform Engineering Golden Path.

!!! info "Service Information" - Description: Java microservice via Golden Path - Environment: development - Technology: Spring Boot 3.2, Java 17 - Orchestration: Humanitec - Observability: Prometheus + Grafana

Quick Links

Features

✅ Production-Ready Configuration

Health checks (liveness, readiness, startup)
Graceful shutdown
Resource limits and requests
Security contexts

✅ Observability

Prometheus metrics integration
Pre-configured Grafana dashboards
Structured logging
Request tracing

✅ CI/CD

Automated builds via GitHub Actions
Azure Container Registry integration
Humanitec deployment automation
GitOps fallback with ArgoCD

✅ Developer Experience

Local development support
Hot reload with Spring DevTools
Comprehensive tests
API documentation

Architecture

This service follows the golden path architecture:

┌─────────────────────────────────────────┐
│           Developer Experience           │
│  (Backstage Template → Gitea Repo)      │
└─────────────────────────────────────────┘
                   │
                   │ git push
                   ▼
┌─────────────────────────────────────────┐
│          GitHub Actions CI/CD            │
│  1. Build with Maven                     │
│  2. Run tests                            │
│  3. Build Docker image                   │
│  4. Push to ACR                          │
│  5. Deploy via Humanitec                 │
└─────────────────────────────────────────┘
                   │
                   ▼
┌─────────────────────────────────────────┐
│        Humanitec Orchestrator            │
│  - Interprets score.yaml                 │
│  - Provisions resources                  │
│  - Deploys to AKS                        │
└─────────────────────────────────────────┘
                   │
                   ▼
┌─────────────────────────────────────────┐
│          Azure AKS Cluster               │
│  - Pods with app containers              │
│  - Prometheus scraping metrics           │
│  - Service mesh (optional)               │
└─────────────────────────────────────────┘
                   │
                   ▼
┌─────────────────────────────────────────┐
│       Grafana + Prometheus               │
│  - Real-time metrics                     │
│  - Dashboards                            │
│  - Alerting                              │
└─────────────────────────────────────────┘

API Endpoints

Application Endpoints

Endpoint	Method	Description
`/`	GET	Welcome message
`/api/status`	GET	Service health status

Actuator Endpoints

Endpoint	Method	Description
`/actuator/health`	GET	Overall health
`/actuator/health/liveness`	GET	Liveness probe
`/actuator/health/readiness`	GET	Readiness probe
`/actuator/metrics`	GET	Available metrics
`/actuator/prometheus`	GET	Prometheus metrics
`/actuator/info`	GET	Application info

Technology Stack

Language: Java 17
Framework: Spring Boot 3.2.0
Build Tool: Maven 3.9
Metrics: Micrometer + Prometheus
Container: Docker (Alpine-based)
Orchestration: Humanitec (Score)
CI/CD: GitHub Actions
Registry: Azure Container Registry
Kubernetes: Azure AKS
Monitoring: Prometheus + Grafana

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