What Is Going on Within My Network? a Subtle Introduction to Cilium Hubble
recording made private on YouTubehttps://youtu.be/kbYVykOzkgE
summary
Cilium Hubble uses eBPF kernel-level probes to capture L3–L7 flows and exposes them via Hubble CLI and UI plus a metrics endpoint for Prometheus/Grafana export. The demo runs on a kind cluster (two workers, one control plane) with Cilium 1.15, deploys two nginx pods, shows Hubble detecting HTTP GETs, rendering JSON flow output, and reporting connections dropped by network policy. It also shows filtering by pod, namespace, label, IP, port, and HTTP method.
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