feat(observability): add distributed tracing, metrics, log aggregatio…#4
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feat(observability): add distributed tracing, metrics, log aggregatio…#4Hexor-Hash wants to merge 2 commits into
Hexor-Hash wants to merge 2 commits into
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…n, alerting, and dashboards - Add OpenTelemetry SDK with auto-instrumentation for HTTP, PostgreSQL, Redis - Add TracingService with withSpan() helper for custom spans - Enhance MetricsService with http_request_duration_seconds, enrollments_total, course_completions_total, auth_attempts_total, active_connections - Add Loki transport to Winston logger for log aggregation (opt-in via LOKI_URL) - Add Prometheus alerting rules: HighErrorRate, SlowHttpResponses, SlowStellarRpc, HighMemoryUsage, HighEventLoopLag, ServiceDown, HighAuthFailureRate - Add Alertmanager configuration with critical/warning routing - Add Brain-Storm Overview Grafana dashboard with 11 panels - Add Loki datasource to Grafana provisioning - Add Loki and Alertmanager services to docker-compose.monitoring.yml - Add comprehensive observability documentation (docs/observability.md) - Add OTel, winston-loki, nest-winston packages to backend package.json - Add OTEL_EXPORTER_OTLP_ENDPOINT and LOKI_URL to .env.example Closes BrainTease#518
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…n, alerting, and dashboards
Closes BrainTease#518
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