ECS Fargate Service-Level Optimization

Opportunity Name: ECS Fargate Service-Level Optimization

AWS Resource Type: Amazon ECS (Fargate)

Opportunity Description:
This Finder improves the efficiency of cost optimization in ECS Fargate environments by shifting the focus from individual task-level analysis to service-level insights. Previously, CloudFix analyzed every Fargate task individually, which was data-intensive and less actionable. With this enhancement, CloudFix now analyzes aggregate usage at the service level, delivering more accurate and performance-friendly recommendations for optimization—while retaining task-level granularity where it adds value.

Criteria for identifying the opportunity:

• ECS Fargate services running in active clusters.
• Historical task usage data aggregated at the service level.
• Potential over-provisioning or under-utilized services based on CPU and memory utilization metrics.
• Optimization opportunities identified through AWS CUR data and Compute Optimizer recommendations.

Potential Savings (range in % on annual basis):
While specific savings will vary, targeting ECS Fargate services (versus tasks) allows for more accurate rightsizing, helping customers avoid excess provisioning costs and scale services more efficiently.

What happens when the Fixer is executed?
CloudFix identifies the right resource configuration and proposes changes (e.g., CPU/memory allocation) at the ECS service level, not at individual task granularity. Execution involves:

1. Analysis of service-level metrics.
2. Recommendation of optimized configuration.
3. (When implemented) changes can be made via the ECS UpdateService API.

Note: This Finder currently offers actionable recommendations. Automation of the fix can be supported via internal runbooks or professional services.

Is it possible to rollback once CloudFix implements the fixer?
Yes. Changes made to service configuration via UpdateService are easily reversible via ECS console or CLI.

Can CloudFix implement the fix automatically once I accept the recommendation?
Currently, execution is manual or semi-automated via internal runbooks. Fixer development is aligned with existing runbook-based deployment methods.

Does this fix require downtime?
No. ECS services can be reconfigured using rolling updates that do not disrupt availability.

Additional Resources:

• AWS ECS Fargate Documentation
• AWS Compute Optimizer
• ECS UpdateService API Reference