Amazon ECS now allows tmpfs mounts for Linux tasks on AWS Fargate and ECS Managed Instances. This enables the creation of in-memory file systems for tasks, which is useful for temporary data and sensitive information that shouldn’t persist after the task ends. Users can configure tmpfs mounts through task definitions in the ECS console or via AWS CLI and other tools.

AWS Fargate now supports network fault injection experiments through the AWS Fault Injection Service, allowing organizations to simulate network disruptions and improve the resilience of containerized applications. By introducing controlled failures like latency and packet loss, teams can test their applications' behavior and validate disaster recovery procedures, ultimately enhancing system robustness against real-world network issues. The article provides a practical guide for implementing these experiments within an Amazon ECS Fargate application environment.

AWS ECS Fargate can struggle with sudden traffic spikes due to slow autoscaling, leading to potential 503 errors. To mitigate this, the article suggests offloading traffic to a Lambda function during high-traffic periods by creating an additional target group and using CloudWatch metrics to trigger scaling actions. This setup allows existing Fargate tasks to handle the load more effectively while new tasks are being provisioned.