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Dev.to
Dev.to
6/30/2026
The original title is "Building NetZero: Automated Zero-Trust K8s Network Policies Using Go and eBPF"

The original title is "Building NetZero: Automated Zero-Trust K8s Network Policies Using Go and eBPF"

Original: Building NetZero: Automated Zero-Trust K8s Network Policies Using Go and eBPF

Short summary

NetZero is an open-source Go and eBPF tool that automates zero-trust Kubernetes NetworkPolicy generation by observing runtime traffic at the kernel level. It captures actual network connections without overhead, enriches them with DNS and process metadata, and exports production-ready YAML policies—eliminating manual configuration and the risk of production outages from overlooked API dependencies.

  • Auto-generates Kubernetes NetworkPolicy YAML from observed runtime traffic using eBPF kernel hooks
  • Uses kernel-space C probes for zero-overhead traffic capture, with Go userspace for enrichment and YAML export
  • Solves manual policy configuration pain point and guards against missed third-party dependencies in production

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