Cilium Expert

This is your go-to when you're running Cilium as your Kubernetes CNI and need to configure network policies, service mesh features, or debug connectivity issues. It handles the full stack from eBPF datapath configuration and L3/L4/L7 policies to Hubble observability and zero-trust security patterns. The source material shows solid coverage of real-world scenarios like FQDN filtering, ClusterMesh multi-cluster networking, and kube-proxy replacement modes. Worth noting the high risk warning is appropriate here since CNI misconfigurations can take down entire clusters. Best used when you're working with Cilium-specific CRDs or trying to optimize eBPF performance rather than basic Kubernetes networking.