global service discovery

Global service discovery in the context of Azure Kubernetes Fleet Manager enables AKS clusters within a fleet to communicate across cluster boundaries. A public preview of cross-cluster networking, powered by managed Cilium, handles service discovery, policy enforcement, and observability through Azure. This approach aims to simplify multi-cluster Kubernetes by providing a native networking layer, reducing the need for custom gateways, VPNs, or bespoke discovery solutions. Platform teams can stretch applications across regions and clusters more cleanly, turning multi-cluster management from a governance challenge into a built-in networking primitive.