Networking on EKS

Overview

EKS networking integrates with Amazon VPC for pod networking, with support for advanced features like network policies and security groups for pods.

Topics

VPC CNI

Amazon VPC Container Network Interface plugin

• Security Groups for Pods
• Network Policies
• Custom Networking
• Prefix Delegation

VPC Lattice

Service mesh and service networking for EKS

Architecture

Pod --> ENI (Elastic Network Interface) --> VPC --> External
     |
     |-- Security Groups
     |-- VPC CNI assigns IPs from VPC CIDR

Key Components

Component	Purpose
VPC CNI	Pod networking within VPC
kube-proxy	Service load balancing
CoreDNS	Cluster DNS resolution
AWS LB Controller	Ingress and Load Balancer management

References

• EKS Networking
• EKS Workshop - Networking