kubernetes

What is CNI (Container Network Interface)?

A standard interface for Kubernetes networking plugins. CNI plugins (Flannel, Calico, Cilium) handle pod-to-pod networking, IP address management, and network policies.

Related Calculators

Cilium Resources

Calculate Cilium CNI agent RAM and CPU requirements per node. Includes Hubble observability overhead, WireGuard encryption, and BPF map memory for network policies.

K8s Bandwidth

Estimate internal pod-to-pod bandwidth, external egress, and recommended NIC size for your Kubernetes cluster. Accounts for service mesh overhead and Hetzner egress pricing.

Mesh Overhead

Calculate the RAM, CPU, and latency overhead of running Istio, Linkerd, or Cilium as a service mesh. Compare sidecar vs eBPF approaches per pod and cluster-wide.

Related Generators

Network Policy

Generate Kubernetes NetworkPolicy YAML with default-deny and allow rules for namespace isolation. Supports ingress allow-lists, egress port rules, DNS, and Prometheus scraping.

Related Comparisons

Linkerd vs Cilium

Linkerd vs Cilium — sidecar service mesh vs eBPF-based networking. Compare resource usage, mTLS, network policy, and which is better for Kubernetes observability.