feat: Production-ready monitoring, logging, and alerting infrastructure#691
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- Add Prometheus configuration with Redis & Node Exporter scrape targets - Implement 16+ alert rules (infrastructure, performance, SLA, business) - Create recording rules for KPI pre-computation (business-metrics.yml) - Enhance AlertManager with multi-channel routing (Slack, Email, PagerDuty) - Create 3 pre-built Grafana dashboards: * System Overview (infrastructure health metrics) * API Performance (latency, throughput, error rates) * Business Metrics (registrations, payments, users, reviews, contracts) - Add Grafana auto-provisioning for datasources and dashboards - Configure OpenTelemetry Collector with Jaeger exporter - Enhance Logstash with JSON parsing and error detection - Expand application metrics: 20+ custom metrics - Create BusinessMetricsRecorder service for event recording - Wire metrics middleware into Express app - Add /metrics endpoint for Prometheus scraping - Create docker-compose.monitoring.yml (10 services, health checks) - Add startup script for one-command deployment - Write comprehensive documentation: * MONITORING_SETUP.md (1200+ lines production guide) * MONITORING_QUICK_START.md (quick start with examples) * MONITORING_IMPLEMENTATION.md (implementation summary) Acceptance criteria met: ✓ Prometheus collects metrics from API, database, Redis, host ✓ Grafana dashboards show system, API performance, business metrics ✓ AlertManager sends notifications (Slack, Email, PagerDuty) ✓ Jaeger provides distributed tracing ✓ Logstash aggregates logs to Elasticsearch ✓ SLA monitoring tracks 99.5% uptime target ✓ Custom business metrics for all major events
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Overview
Comprehensive monitoring, logging, and alerting infrastructure setup for production deployment.
Changes
Acceptance Criteria
✅ Prometheus collects metrics from API, database, Redis, host
✅ Grafana dashboards show system overview, API performance, business metrics
✅ AlertManager sends notifications (Slack, Email, PagerDuty)
✅ Jaeger provides distributed tracing
✅ Logstash aggregates logs to Elasticsearch
✅ SLA monitoring tracks 99.5% uptime target
✅ Custom business metrics for registrations, payments, users, reviews, contracts
Quick Start
chmod +x scripts/start-monitoring.sh ./scripts/start-monitoring.sh # Access: Prometheus (9090), Grafana (3001), Jaeger (16686), AlertManager (9093)Documentation
docs/MONITORING_SETUP.md- Comprehensive production guidedocs/MONITORING_QUICK_START.md- Quick start with examplesdocs/MONITORING_IMPLEMENTATION.md- Implementation detailsFiles Changed
Closes #679