Implement service health monitoring and incident tracking platform

[Copilot]

Full-stack platform for monitoring service health with automated checks, alert generation, and incident lifecycle management. Built as modular codebase (React + Spring Boot + PostgreSQL) with containerized deployment.

Backend (Spring Boot 3.2)

• Entities: Service, HealthCheck, Alert, Incident, Runbook with JPA relationships
• Scheduled health checks: HTTP monitoring with configurable intervals (default 60s), automatic status updates
• Alert lifecycle: Auto-generation on failures with severity mapping (DOWN→CRITICAL, DEGRADED→HIGH)
• Incident tracking: Status progression from OPEN through ACKNOWLEDGED, INVESTIGATING to RESOLVED/CLOSED
• REST API: Standard CRUD endpoints for all entities with service-specific queries

@Scheduled(fixedDelayString = "${incidentops.health-check.interval:60000}")
public void performScheduledHealthChecks() {
    List<Service> services = serviceService.getAllServices();
    services.forEach(service -> {
        HealthCheck check = healthCheckService.performHealthCheck(service);
        if (check.getStatus() == FAILURE) {
            alertService.createAlertForService(service, check.getErrorMessage());
        }
    });
}

Frontend (React 18)

• Dashboard: Aggregated health metrics and recent alerts/incidents
• Service management: CRUD with health check history viewer
• Alert management: Acknowledge/resolve workflow with severity filtering
• Incident tracking: Status transitions with optional runbook association
• Runbook library: Searchable resolution guides with markdown content

Infrastructure

• PostgreSQL schema: Indexed foreign keys, cascading deletes on service removal
• Docker Compose: Three-service setup (postgres, backend, frontend) with health checks
• Sample data: Pre-configured services hitting public APIs for immediate testing
• Scripts: start.sh for Docker deployment, setup-dev.sh for local development

Quality

• H2 in-memory DB for test isolation
• Timeout validation with @PostConstruct to fail fast on misconfiguration
• ARIA attributes on modals for accessibility
• CodeQL scan clean

Original prompt

Personal portfolio computer science project for learning full-stack development. A lightweight service-health and incident tracking platform. It runs scheduled health checks, generates alerts, and tracks incident lifecycle with runbooks. Currently built to function as a modular codebase (React + Java API + Postgres) with future plans to introduce distributed worker and cloud deployment features.

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