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---
title: "Sonar Test Nest4"
title: "sonar-test-nest4"
generated_by: documentor-agent
generated_at: "2026-05-14T12:03:00+00:00"
generated_at: "2026-05-15T15:19:14+00:00"
human_edited: false
source_entity: "Component/default/sonar-test-nest4"
source_repo: "https://gitea.kyndemo.live/validate/sonar-test-nest4"
---
# Sonar Test Nest4
> A stateless microservice built with TypeScript and NestJS, providing API endpoints for item management and Prometheus-based observability.
## Overview
Sonar Test Nest4 is a stateless microservice scaffolded from the **Create Microservice** golden-path template on the Kyndryl Platform. It is designed to manage items through a RESTful API and includes built-in observability features such as health checks and Prometheus metrics.
`sonar-test-nest4` is a stateless microservice built using the `typescript-nestjs` runtime. It was scaffolded from the **Create Microservice** golden-path template on the Kyndryl Platform. The service provides a RESTful API for managing items, including endpoints for CRUD operations. It is designed to be lightweight, scalable, and observable, with integrated OpenTelemetry instrumentation and Prometheus metrics.
The service is implemented using the `typescript-nestjs` runtime and follows a structured branch model (`dev`, `staging`, `prod`, and `main`) to ensure smooth CI/CD workflows. It is deployed to Azure Kubernetes Service (AKS) via Humanitec, with container images stored in Azure Container Registry (ACR).
This service plays a key role in the broader system by providing item management capabilities and adhering to platform standards for observability, deployment, and runtime configuration.
This service plays a key role in the demo-apps domain, serving as a foundational component for item management. It is deployed on Azure Kubernetes Service (AKS) via Humanitec, with container images stored in Azure Container Registry (ACR). The CI/CD pipeline is managed through Gitea Actions, ensuring automated builds, tests, and deployments across environments (`dev`, `staging`, `prod`).
## Repository
| Field | Value |
|---|---|
| Source Repo | [Sonar Test Nest4 Repository](https://gitea.kyndemo.live/validate/sonar-test-nest4) |
| Branch | dev |
|----------------|-----------------------------------------------------------------------------------------------------------------|
| Source Repo | [validate/sonar-test-nest4](https://gitea.kyndemo.live/validate/sonar-test-nest4) |
| Branch | `dev` → `staging` → `prod` (→ `main` SoR) |
| ArgoCD App | — |
| Namespace | dev |
| Namespace | `dev` |
## Architecture
Sonar Test Nest4 is built using the `typescript-nestjs` runtime and deployed as a stateless service. Key architectural components include:
`sonar-test-nest4` follows a stateless architecture, leveraging the `typescript-nestjs` framework. Key components include:
- **Runtime**: TypeScript with NestJS framework.
- **Container Port**: `3000`.
- **Health Check Endpoint**: `/health`.
- **Metrics Endpoint**: `/metrics` (Prometheus format).
- **Image Repository**: Azure Container Registry (`bstagecjotdevacr`).
- **Runtime**: `typescript-nestjs`
- **Container Port**: `3000`
- **Health Check**: `/health`
- **Metrics Endpoint**: `/metrics` (Prometheus format)
- **Image Registry**: Azure Container Registry (`bstagecjotdevacr`)
The CI/CD pipeline is managed through Gitea Actions workflows:
- `build-push.yml`: Builds and tests the application, then pushes the container image to ACR.
- `deploy-humanitec.yml`: Deploys the service to AKS via Humanitec using Score files.
The deployment flow is managed through Gitea Actions CI/CD workflows:
1. **build-push.yml**: Builds and tests the application, then pushes the container image to ACR.
2. **deploy-humanitec.yml**: Deploys the service to AKS using Humanitec's API and Score configuration.
Promotions between environments (`dev`, `staging`, `prod`) are triggered through Backstage's CI/CD tab, ensuring controlled and gated deployments.
Promotions between environments (`dev`, `staging`, `prod`) are triggered via PRs, with CI gates and approval requirements ensuring quality control.
## Configuration
| Config Key | Value |
|---|---|
| runtime | typescript-nestjs |
| health_path | /health |
| container_port | 3000 |
|------------------|--------------------|
| `runtime` | `typescript-nestjs` |
| `health_path` | `/health` |
| `container_port` | `3000` |
## Operations
The service follows a structured branch model for development and deployment:
### Deployment Steps
1. Push changes to the `dev` branch for automatic deployment to the development environment.
2. Open a PR for promotion to `staging` or `prod`. Ensure CI tests pass and obtain one approval before merging.
3. Use the Backstage CI/CD tab to trigger promotions between environments.
- **dev**: Active development branch; commits trigger automatic builds and deployments to the dev environment.
- **staging**: Pre-production environment; changes are promoted from `dev` via PR with CI gate and approval.
- **prod**: Production environment; changes are promoted from `staging` via PR with CI gate and approval.
- **main**: System of record; receives merges from `prod` after releases.
Deployment workflows are runtime-agnostic and rely on `.platform/config.yaml` for configuration.
### Runbook Notes
- Monitor `/health` for service health status.
- Use `/metrics` for Prometheus-based observability.
- Refer to `.platform/config.yaml` for runtime-specific configurations.
## Observability
- [Grafana Dashboard](https://grafana.kyndemo.live/d/otel-app-observability-v2/opentelemetry-application-observability?orgId=1&var-app=sonar-test-nest4): OpenTelemetry-based application observability.
- Prometheus metrics exposed at `/metrics`.
- Health check endpoint at `/health`.
- **Grafana Dashboard**: [Opentelemetry Application Observability](https://grafana.kyndemo.live/d/otel-app-observability-v2/opentelemetry-application-observability?orgId=1&var-app=sonar-test-nest4)
- **Prometheus Metrics**: Enabled (`/metrics` endpoint).
- **Chaos Mesh**: Enabled for resilience testing.
- **K6 Load Testing**: Configured via `k6-test-sonar-test-nest4` in the `dev` namespace.
## Dependencies
_No declared dependencies._
- `api:default/sonar-test-nest4-api`
## Links
- [Humanitec Console](https://console.humanitec.dev/orgs/skillful-wild-chicken-2617/projects/domain-demo-apps)
- [Grafana Dashboard](https://grafana.kyndemo.live/d/otel-app-observability-v2/opentelemetry-application-observability?orgId=1&var-app=sonar-test-nest4)
- [Source Repository](https://gitea.kyndemo.live/validate/sonar-test-nest4)