Cilium

1. Introduction

   What Cilium is, eBPF and its capabilities.

2. Component Overview

   Agent, operator, CNI plugin, Hubble.

3. Networking Concepts

   Routing modes, tunneling and IPAM.

4. Network Policy

   L3/L4/L7 policies, identity-based enforcement, CiliumNetworkPolicy.

5. Security Identity

   Identity-based security model.

6. Kubernetes Without kube-proxy

   eBPF-based service load balancing.

7. Hubble Observability

   Flow visibility, metrics and the Hubble UI.

8. Transparent Encryption

   WireGuard and IPsec encryption.

9. Service Mesh

   Sidecar-free service mesh and ingress.

10. Cluster Mesh

    Multi-cluster connectivity and global services.

11. BGP Control Plane

    Advertising routes with BGP.

12. Performance and Tuning

    Performance tuning and benchmarking.

13. eBPF Datapath

    eBPF concepts and datapath reference.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.

Source: endoflife.date