Dev.to
6/30/2026

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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