---
title: "Petclinic Demo Jonathan Scaf 2"
generated_by: documentor-agent
generated_at: "2026-05-05T10:41:16+00:00"
human_edited: false
source_entity: "Component/default/petclinic-demo-jonathan-scaf-2"
source_repo: "https://gitea.kyndemo.live/validate/petclinic-demo-jonathan-scaf-2"
---

# Petclinic Demo Jonathan Scaf 2

> A Spring Boot application deployed via ArgoCD into the `demo-apps` namespace, featuring OpenTelemetry instrumentation and support for load testing and chaos engineering.

## Overview

Petclinic Demo Jonathan Scaf 2 is a deployment of the Spring PetClinic application, a sample Spring Boot project designed to showcase best practices in building modern Java applications. This service is scaffolded using the Backstage Application Migration Factory template and integrates observability, load testing, and chaos engineering capabilities.

The application provides a web interface for managing veterinary clinics, including features for scheduling appointments, managing pet records, and handling customer information. It is deployed in the `demo-apps` namespace and continuously synced via ArgoCD from the `main` branch of its source repository. OpenTelemetry instrumentation is enabled for comprehensive observability, and the service supports load testing using K6 and chaos engineering experiments via Chaos Mesh.

## Repository

| Field | Value |
|---|---|
| Source Repo | [https://gitea.kyndemo.live/validate/petclinic-demo-jonathan-scaf-2](https://gitea.kyndemo.live/validate/petclinic-demo-jonathan-scaf-2) |
| Branch | main |
| ArgoCD App | petclinic-demo-jonathan-scaf-2 |
| Namespace | demo-apps |

## Architecture

- The service is based on the Spring PetClinic application, cloned from [https://github.com/spring-projects/spring-petclinic](https://github.com/spring-projects/spring-petclinic).
- OpenTelemetry auto-instrumentation is applied via Kustomize overlays, enabling detailed tracing, metrics, and logging.
- ArgoCD manages the deployment, continuously syncing changes from the `main` branch to the `demo-apps` namespace.
- The application supports multiple database configurations, including H2 (default), MySQL, and PostgreSQL, with profiles for each.

## Configuration

| Configuration | Description |
|---|---|
| `spring.profiles.active` | Sets the active Spring profile (`mysql`, `postgres`, or default `h2`). |
| Database URLs | H2: `jdbc:h2:mem:<uuid>` (default), MySQL: `docker-compose.yml` service `mysql`, PostgreSQL: `docker-compose.yml` service `postgres`. |
| OpenTelemetry Collector | Endpoint: `http://otel-collector.monitoring.svc.cluster.local:4318`. |

## Operations

- **Development Workflow**:
  ```bash
  git clone https://gitea.kyndemo.live/validate/petclinic-demo-jonathan-scaf-2.git
  cd petclinic-demo-jonathan-scaf-2
  # make changes, then:
  git add . && git commit -m "your change" && git push origin main
  ```
  ArgoCD automatically syncs changes to the `demo-apps` namespace.

- **Rollback**:
  1. Open the [ArgoCD UI](https://argocd.kyndemo.live/applications/petclinic-demo-jonathan-scaf-2).
  2. Click **History and Rollback**.
  3. Select the desired revision and click **Rollback**.

  Alternatively, revert the commit in Git and push — ArgoCD will auto-sync the rollback.

<!-- TODO: FILL IN -->

## Observability

- **Grafana Dashboard**: [https://grafana.kyndemo.live/d/otel-app-observability-v2/opentelemetry-application-observability?orgId=1&var-app=petclinic-demo-jonathan-scaf-2](https://grafana.kyndemo.live/d/otel-app-observability-v2/opentelemetry-application-observability?orgId=1&var-app=petclinic-demo-jonathan-scaf-2)
- **Alerting**: Configured via Grafana with label selector `app.kubernetes.io/instance=petclinic-demo-jonathan-scaf-2`.
- **Instrumentation**: OpenTelemetry traces, metrics, and logs exported to the OTel Collector.

## Dependencies

- `component:default/argocd-service`
- `resource:default/k6-operator`
- `resource:default/otel-collector`
- `resource:default/veterinary-platform`