cost-optimization

AWS quietly launched S3 Files - a way to mount an S3 bucket and work with it like a regular file system. No custom SDK, no aws s3 cp, just standard file operations on top of S3. How it works You mount the bucket via a managed endpoint and get a POSIX-compatible interface on EC2, Lambda, EKS, and ECS. Your existing tools and applications don’t need to know it’s S3 underneath....

SQS is cheap until it isn’t. Real example from the wild: $500k in a weekend — and Amazon reportedly asked the team not to delete everything at once in certain regions, as it could impact the service. The usual culprit isn’t message volume; it’s how often you call ReceiveMessage when the queue is empty. How SQS Billing Works You pay per request (SendMessage, ReceiveMessage, DeleteMessage, etc.), not per message. Standard queue: about $0....