
AWS Fault Injection Simulator now offers six new actions for Amazon ECS workloads, enabling chaos engineering experiments to test application resilience through CPU stress, I/O stress, process termination, and network fault injection.


<div><p>This article announces new AWS Fault Injection Simulator (FIS) features for testing Amazon ECS workload resilience through chaos engineering experiments.</p><ul><li>Six new fault injection actions for ECS tasks: CPU stress, I/O stress, process killing, network blackhole, latency, packet loss</li><li>CPU and I/O actions work on both EC2 and Fargate; network actions EC2 only</li><li>FIS uses SSM Agent sidecar containers to inject faults into ECS tasks</li><li>Includes detailed walkthrough: deploy infrastructure, create CPU stress experiment, kill process experiment</li><li>Stop conditions using CloudWatch alarms prevent unintended service disruption</li><li>Pricing based on action duration; process-kill action is free</li><li>Available in all AWS regions where FIS is supported</li></ul><p>AWS FIS enables ECS users to safely test application resilience by simulating real-world failures, helping identify issues before production outages occur.</p></div>


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