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Streamline your Amazon EKS deployments with Gateway API support for AWS Load Balancer Controller and Amazon VPC Lattice

Networking & Content Delivery Blog

This article demonstrates how to use Kubernetes Gateway API with AWS Load Balancer Controller and Amazon VPC Lattice for unified EKS networking across multiple clusters.

  • Gateway API provides unified, role-oriented API for ingress and service-to-service communication
  • AWS Load Balancer Controller manages internet-facing traffic via ALBs/NLBs
  • VPC Lattice Gateway API Controller handles cross-cluster, cross-VPC, and cross-account service communication
  • Both controllers coexist in same cluster, each managing their respective GatewayClass
  • Architecture example shows frontend exposed via ALB, internal services via VPC Lattice
  • AWS Load Balancer Controller supports gradual migration from Ingress to Gateway API
  • Configuration uses same Gateway and HTTPRoute CRDs regardless of controller

Gateway API simplifies multi-cluster EKS networking by providing consistent configuration interface across different AWS services and networking layers.

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