Following the announced retirement of the ingress-nginx project, the CNCF migrated its internal services cluster to Envoy Gateway (an implementation of the Gateway API). Rather than a generic tutorial, the post details their specific architectural decisions, such as utilizing a shared Gateway object across multiple HTTPRoutes to optimize cloud load balancer costs and operational simplicity. It also covers the migration strategies they used for maintaining the same IP address, handling legacy certificates, and conducting "Day 2" operations with cert-manager.

https://www.cncf.io/blog/2026/04/13/ingress-nginx-to-envoy-gateway-migration-on-cncf-internal-services-cluster/