Introduction

This comprehensive guide walks you through the complete process of deploying and configuring Longhorn as the default storage class in your Amazon Elastic Kubernetes Service (EKS) cluster. Longhorn provides a robust, cloud-native storage solution that addresses the limitations of traditional cloud-based block storage solutions like Amazon EBS.

By following this guide, you will learn how to:

Understand why EBS falls short for modern Kubernetes workloads

Prepare your EKS cluster for Longhorn

Install open-iSCSI prerequisites on every worker node

Deploy Longhorn using Helm as the default StorageClass

Configure AWS Load Balancer Controller for external access

Access the Longhorn management UI securely

Automate the entire setup using Atmos + Terraform

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What is EBS Volume?

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EBS (Elastic Block Store) is a network-attached storage volume for your EC2 instance — think of it as a hard disk in the cloud.…