How eBPF is changing the rules of security and observability in Kubernetes

▤ Summary

This article explains how eBPF is changing Kubernetes networking by reducing reliance on iptables and improving performance in kube-proxy replacement scenarios. It compares common approaches such as Flannel, Calico, and Cilium, and shows how eBPF and XDP can improve packet handling, observability, and policy enforcement. It also highlights security and L7 use cases such as flow visibility, NetworkPolicy enforcement, and service-to-service telemetry. The piece emphasizes that eBPF can increase throughput and lower latency while reducing userspace overhead in high-traffic clusters. It also mentions broader Kubernetes operations and automation topics at the end, but the core focus stays on eBPF-driven infrastructure software.

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