For centralized visibility into traffic flow (source/destination tracking, service maps, and real-time request tracing), KubeLB integrates with existing service mesh and CNI observability tools.
Hubble UI
Hubble is the observability layer for Cilium. When Cilium is the CNI on the KubeLB management cluster, Hubble shows how traffic enters through KubeLB’s Envoy Proxy and reaches tenant backends: a service map of service-to-service communication, live L3/L4 and L7 flow streams with source, destination, and verdict, and request-level HTTP/gRPC details.
Hubble UI runs as a deployment in the cluster and connects to Hubble Relay for aggregated flow data. For setup instructions, see the Hubble Getting Started Guide.
The following screenshots show a load balancer resource exposed via KubeLB.
Hubble UI: Service Map showing KubeLB traffic flows
Hubble UI: Real-time flow table
Kiali
Kiali is the management console for the Istio service mesh. When Istio is deployed alongside or within KubeLB clusters, Kiali provides a real-time traffic graph with request rates, error rates, and latency for the services behind KubeLB, plus links to distributed traces.
For installation and configuration, see the Kiali Installation Guide.