In today’s cloud-native ecosystem, ensuring High Availability (HA) is a critical requirement for containerized applications running on Kubernetes. HA ensures that your workloads remain operational even in the face of failures, outages, or traffic spikes. Platforms like Amazon Elastic Kubernetes Service (EKS), Azure Kubernetes Service (AKS), and Red Hat Kubernetes Service (RKS) provide managed Kubernetes solutions that simplify cluster management, but achieving true HA requires careful configuration and planning.

This article offers a comprehensive guide to setting up HA in EKS, AKS, and RKS, covering foundational concepts, platform-specific configurations, and advanced features like Horizontal Pod Autoscaler (HPA). With actionable examples and best practices, this guide equips you to build resilient, production-grade Kubernetes environments.

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