Testing Cilium Network Policies

Summary

Evaluating Cilium as a CNI replacement with eBPF-based network policies, Hubble observability, and performance benchmarks.

Commands

cilium install --version 1.16.0

cilium connectivity test

cilium hubble enable --ui

kubectl apply -f network-policy-l7.yaml

Screenshots

Conclusion

Cilium's eBPF-based networking delivers 15% better throughput than Calico in our benchmarks. L7 network policies via Envoy proxy add latency but provide essential application-layer security. Hubble is invaluable for debugging.