What is Cilium?


Cilium consists of an agent running on all cluster nodes and servers in your environment. It provides networking, security, and observability to the workloads running on that node. Workloads can be containerized or running natively on the system.


Get Hands-On With Cilium

  • Interactive Cilium<br/>Introduction and Live Q&A

    Interactive Cilium
    Introduction and Live Q&A

    With a Cilium and eBPF expert

  • Documentation & Tutorials

    Documentation & Tutorials

    Quickly get started with Cilium. Read the documentation or use our interactive tutorial in a live environment.

We are proud to be a CNCF incubation level project

Learn about Cilium & eBPF

  • 10min Introduction to Cilium

    10min Introduction to Cilium

    Liz Rice and Thomas Graf answer the most popular questions about the Cilium, its creation and the problems it solves

  • The Future of eBPF based Networking and Security

    The Future of eBPF based Networking and Security

    eBPF Summit 2020, Thomas Graf, Cilium Co-Creator, CTO & Co-Founder Isovalent

  • Understanding Cilium Network Performance

    Understanding Cilium Network Performance

    Explore the performance characteristics of Cilium based on extensive benchmarks

  • Related Projects


    Hubble is a fully distributed networking and security observability platform for cloud native workloads. Hubble is open source software and built on top of Cilium and eBPF to enable deep visibility into the communication and behavior of services as well as the networking infrastructure in a completely transparent manner.

    Learn more

    Network Policy Editor

    Over the years, we have learned a lot about the common challenges while working with many of you in the Cilium community implementing Kubernetes Network Policy. Networkpolicy.io is a free tool to assist you in your journey to assist you with Kubernetes NetworkPolicy.

    Learn more

    eBPF Library for Go

    eBPF is a pure Go library that provides utilities for loading, compiling, and debugging eBPF programs. It has minimal external dependencies and is intended to be used in long running processes.

    Learn more

    AWS picks Cilium for Networking & Security on EKS Anywhere

    Google chooses Cilium for Google Kubernetes Engine (GKE) networking

    Bell uses Cilium and eBPF for telco networking

    Sky uses Cilium as their CNI and for network security

    What Makes a Good Multi-tenant Kubernetes Solution

    Building a Secure and Maintainable PaaS

    How Datadog uses Cilium

    Kubernetes Network Policies in Action with Cilium