Cilium

Hubble Relay API

The Hubble Relay API is a gRPC service that aggregates and relays network flow data from multiple Hubble agents running across Kubernetes cluster nodes. It provides a single cluster-wide endpoint for the Hubble Observer service, enabling centralized queries of flow data, DNS events, and HTTP metrics from all nodes through Hubble Relay without connecting to each node individually.

GitHub

Documentation

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Documentation
https://docs.cilium.io/en/stable/observability/hubble/index.html

SDKs

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GitHubRepository
https://github.com/cilium/cilium

Other Resources

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Reference
https://github.com/cilium/cilium/tree/main/api/v1/relay
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Change Log
https://github.com/cilium/cilium/releases