Stack Overview
ThreatIntelRelay uses the following open-source tools:
- Containers / Runtime: Docker + Kubernetes
 - Scheduling / Event Flows: Apache Airflow
 - Message Bus: Apache Kafka
 - Immutable object store: MinIO
 - Metadata DB: PostgreSQL
 - Vector Index: Qdrant
 - Enrichment / ETL: Pydantic + pandas
 - Task / Queue manager: Celery + Redis
 - API (with MCP endpoints): FastAPI
 - AuthN/AuthZ: Keycloak
 - API gateway / rate-limit / WAF: Kong Gateway + Modsecurity v3 with OWASP CRS 4
 - Edge caching: Varnish Cache 6 + VCL
 - Observability: OpenTelemetry -> Prometheus + Grafana + Loki + Tempo
 - CI/CD & supply chain: GitHub Actions + Argo CD
 - Policy and runtime hardening: Kyverno + Falco
 
This stack represents the planned architecture. ThreatIntelRelay is still being built, so expect changes as the MCP-based interface for AI agents takes shape.