Learn how to setup Cilium in EKS environments...

Cilium is an innovative open-source project that redefines networking and security for containerized applications. By leveraging the power of eBPF (extended Berkeley Packet Filter), Cilium provides efficient networking and transparent security capabilities for modern cloud-native environments. Readers exploring Cilium can gain insights into advanced networking concepts, such as service mesh architectures, network policy enforcement, and distributed application security.

cilium

This guide demonstrates how to install Cilium on Amazon EKS clusters using two different networking modes: CNI chaining mode (where Cilium coexists with AWS VPC CNI) and overlay/BYOCNI mode (where Cilium replaces AWS VPC CNI entirely). The tutorial covers cluster configuration, Helm installation commands with specific flags for each mode, and explains the trade-offs between encapsulation-based overlay networking versus native routing approaches in Kubernetes environments.

Installing Cilium on EKS in Overlay(BYOCNI) and CNI Chaining Mode

Installing Cilium on EKS in CNI chaining mode

A Primer on Encapsulation vs Native/Direct Routing in Cilium

Is AWS ENI is considered a form of native routing in Cilium?