Kubernetes microservices architecture implements Kong API Gateway with JWKS-based JWT validation fronting NestJS services integrated with headless Keycloak for identity management. Traffic flows from users through Kong Ingress to separate Auth and Backend services, each backed by dedicated PostgreSQL databases with persistent volume claims. Kong validates JWTs using JWKS keys stored in Kubernetes Secrets, while the Auth service handles Keycloak integration for token issuance and user management. This pattern demonstrates zero-trust API security with centralized authentication, service mesh principles, and stateful workload management in Kubernetes. Fork this diagram on Diagrams.so to customize Kong plugins, add service mesh sidecars, or model your own microservices topology with drag-and-drop Kubernetes components.