Maximize Amazon EKS efficiency: How Auto Mode, Graviton, and Spot work together

This article demonstrates how to optimize Amazon EKS efficiency by combining Auto Mode, AWS Graviton processors, and EC2 Spot instances through two practical deployment scenarios.

• EKS Auto Mode automates infrastructure management, reducing operational overhead for teams
• AWS Graviton instances deliver up to 40% better price-performance and 60% less energy consumption
• EC2 Spot instances can save up to 90% on compute costs for eligible workloads
• Scenario 1: Deploy applications exclusively on ARM64 Graviton instances using dedicated NodePool
• Scenario 2: Mix Spot and On-Demand instances, restricting stateful workloads to On-Demand only
• Custom NodePools with weight prioritization enable intelligent workload scheduling
• Stateless applications efficiently distribute across mixed architectures and capacity types
• EKS Auto Mode includes built-in Spot interruption handling and node consolidation

By strategically combining Graviton, Spot instances, and custom NodePools in EKS Auto Mode, organizations achieve significant cost optimization and improved compute efficiency without manual infrastructure management.