- Docker: Multi-stage Dockerfile with security hardening, docker-compose for production and development environments - Environment: Comprehensive .env.example with all config options, lib/config/env.ts for typed environment validation - Logging: Structured JSON logging with request/response middleware - Monitoring: Prometheus metrics endpoint, Grafana dashboard, health checks (liveness/readiness probes) - Security: Security headers, rate limiting, CORS middleware - CI/CD: GitHub Actions workflows for CI, production deploy, and preview deployments - Error tracking: Sentry integration foundation Files created: - Docker: Dockerfile, docker-compose.yml, docker-compose.dev.yml, .dockerignore - Config: lib/config/env.ts, lib/config/index.ts - Logging: lib/logging/logger.ts, lib/logging/middleware.ts - Monitoring: lib/monitoring/sentry.ts, lib/monitoring/metrics.ts, lib/monitoring/health.ts - Security: lib/security/headers.ts, lib/security/rateLimit.ts, lib/security/cors.ts - API: pages/api/health/*, pages/api/metrics.ts - Infra: infra/prometheus/prometheus.yml, infra/grafana/*
37 lines
1 KiB
TypeScript
37 lines
1 KiB
TypeScript
/**
|
|
* Prometheus Metrics Endpoint
|
|
* Agent 4: Production Deployment
|
|
*
|
|
* GET /api/metrics
|
|
* Returns application metrics in Prometheus format.
|
|
*/
|
|
|
|
import type { NextApiRequest, NextApiResponse } from 'next';
|
|
import { metrics } from '../../lib/monitoring';
|
|
import { env } from '../../lib/config';
|
|
|
|
export default async function handler(
|
|
req: NextApiRequest,
|
|
res: NextApiResponse
|
|
) {
|
|
if (req.method !== 'GET') {
|
|
res.setHeader('Allow', ['GET']);
|
|
return res.status(405).end('Method Not Allowed');
|
|
}
|
|
|
|
// Only expose metrics if enabled
|
|
if (!env.prometheusEnabled && env.isProduction) {
|
|
return res.status(403).end('Metrics endpoint disabled');
|
|
}
|
|
|
|
try {
|
|
const metricsOutput = metrics.toPrometheusFormat();
|
|
|
|
res.setHeader('Content-Type', 'text/plain; version=0.0.4; charset=utf-8');
|
|
res.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate');
|
|
|
|
return res.status(200).end(metricsOutput);
|
|
} catch (error) {
|
|
return res.status(500).end('Failed to generate metrics');
|
|
}
|
|
}
|