Example 22: L7 Routing & Traffic Management (Istio)

[patterncatalyst]

Chapter

_docs/22-appendix-i-l7-routing.md — L7 Routing & Traffic Management

Example Path

examples/22-l7-routing/

What to demonstrate

• Four-layer L7 routing: edge, gateway, mesh, in-app
• Istio VirtualService and DestinationRule
• Header-based routing and canary traffic splitting
• East/west mTLS between services

Stack

• Infra: Minikube — Istio + LGTM
• Language: Python (FastAPI)
• Priority: Medium

Deliverables

• K8s manifests + Istio CRDs
• Two service versions for canary demo
• README.md
• verify.sh
• Flip chapter footer to verified