Federated Kubernetes Clusters Using Amazon EKS and KubeFed

What does this AWS Solutions Implementation do?

This solution helps you experiment with federating Kubernetes clusters with the open-source KubeFed project. It automates the deployment and federation of two Amazon Elastic Kubernetes clusters spanning multiple AWS Regions as well as a pre-configured bastion host and all necessary dependencies and tools.

Benefits

Synchronize your Kubernetes configurations, deployments, and other artifacts between multiple Amazon EKS clusters to test cross Region business continuity using the open-source KubeFed project.

Automate the compensation logic of failover events.

Deploy highly available applications on multiple Amazon EKS clusters in close proximity to end users to reduce latency

Meet the requirements of data sovereignty and locality regulations while maintaining central application deployment and management infrastructure.

AWS Solutions Implementation overview

The diagram below presents the architecture you can deploy using the solution's implementation guide and accompanying AWS CloudFormation template.

Federated Amazon EKS Clusters on AWS | Architecture Diagram

Click to enlarge

Federated Kubernetes Clusters Using Amazon EKS and KubeFed Solutions Implementation architecture

The AWS CloudFormation template first deploys a bastion host in a new Amazon VPC that provisions the following necessary resources:

An Amazon VPC
Public and private subnets
A NAT gateway
An internet gateway
Amazon EC2 for the bastion host

After successfully deploying the bastion host, the following items are deployed:

Two Amazon VPCs for Amazon EKS clusters in your selected AWS Regions
Two Amazon EKS clusters in different AWS Regions, each in its own Amazon VPC
Amazon VPC peering between three Amazon VPCs for secure communication between the bastion host and the federated Amazon EKS clusters
A federation control panel that serves as a proxy between the Kubernetes administrator and the deployed Amazon EKS clusters based on the open source KubeFed project

The bastion host is the single point of administration for Amazon EKS, Kubernetes resources, and this solution's deployment and configuration.

Note: At the date of this solution’s publication, the current version of KubeFed is not in release state and is only recommended for testing purposes. You must check the status of KubeFed if you plan to use it when implementing this solution.