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cilium-expert

Deploy Cilium eBPF networking with identity-based policies and Hubble observability.

Updated Apr 5, 2026
Search Tags:#security#networking#kubernetes#policy#ebpf#cilium#hubble
One-click install
npx skills add https://github.com/ConnectiveTCS/Gradient_Generator --skill cilium-expert-connectivetcs
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: cilium-expert
Source: https://github.com/ConnectiveTCS/Gradient_Generator/tree/main/.agents/skills/cilium-expert
Command: npx skills add https://github.com/ConnectiveTCS/Gradient_Generator --skill cilium-expert-connectivetcs

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This skill provides expert guidance to design, deploy, and operate secure, observable Cilium-based networking in Kubernetes clusters, enabling zero-trust policies, high-performance eBPF datapaths, and end-to-end visibility.

Core Features & Use Cases

  • CNI setup and configuration with Cilium, including IPAM, datapath selection, and HA.
  • Comprehensive network policy management (L3-L7, DNS-based, and egress rules) with audit-mode testing.
  • Service mesh enablement, mTLS, traffic management, and cross-cluster connectivity with ClusterMesh.
  • Observability and troubleshooting using Hubble, real-time flow monitoring, service maps, and tracing.
  • Security hardening, encryption (WireGuard/IPsec), and identity-based policies for zero-trust segmentation.
  • Performance optimization and upgrade strategies with eBPF efficiency and CT tuning.

Quick Start

Install Cilium in a staging cluster, apply a minimal deny-all policy, enable Hubble, and run a basic connectivity test to verify policy enforcement.

Frequently Asked Questions about cilium-expert

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I configure Cilium network policies for zero-trust security in Kubernetes?▼

Cilium network policies enforce zero-trust security using identity-based L3-L7 rules across Kubernetes clusters. You apply a default deny-all policy, use audit-mode testing to validate traffic flow, and enable WireGuard or IPsec for transit encryption.

What is the best way to observe Kubernetes network traffic using Hubble?▼

Hubble observes Kubernetes network traffic by providing real-time flow monitoring, service maps, and tracing through eBPF. It captures data directly from the Cilium datapath, enabling end-to-end visibility without sidecar proxies.

Does Cilium support cross-cluster connectivity and service mesh?▼

Yes, Cilium supports cross-cluster connectivity and service mesh functionality using ClusterMesh. It manages traffic and enforces mTLS directly via eBPF, eliminating the operational overhead of sidecar proxies.

How do I enable encryption for Kubernetes networking with Cilium?▼

Cilium encrypts Kubernetes networking traffic using WireGuard or IPsec. You configure encryption directly within the eBPF datapath to secure node-to-node communication and maintain zero-trust segmentation across clusters.

How do I troubleshoot Cilium network policies not working as expected?▼

Troubleshoot Cilium network policies by using Hubble to inspect real-time flow data and identify blocked connections. Apply policies in audit mode first to verify L3-L7 rules match expected traffic patterns before active enforcement.

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