Boosting ECS Costs Savings: Moving to Graviton with Fargate Spot | TO THE NEW Blog

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TO THE NEW describes a migration that moved an Ad-Tech client's ECS Fargate tasks to AWS Graviton (ARM64) and Fargate Spot to reduce cloud costs. They kept Java builds on x86 but produced ARM container images via Graviton-based Jenkins agents, pushed images to ECR, and updated ECS task definitions to specify the ARM runtime platform. The team validated performance in lower environments, used canary deployments to roll out to production with zero downtime, and updated sidecars and task settings for ARM compatibility. Combining Graviton with Spot tasks produced significant cost savings while maintaining or improving performance and availability.

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