Kubernetes Multi-Namespace Application

This Kubernetes application diagram groups frontend and backend resources into namespaces. An ingress controller receives public HTTPS traffic and routes it to a web service in the frontend namespace. The service selects web pods, which call an API service in the backend namespace. That service selects API pods, and only the API pods connect to PostgreSQL. The view is useful for documenting ownership and traffic boundaries in a microservices deployment. Add network policies, secrets, queues, or separate databases when they are important to the application design. Keep the diagram current when equipment, cable paths, service ownership, or security boundaries change, so it remains useful for planning and operations.