scaleInAfter

This parameter defines the number of seconds Amazon ECS Managed Instances waits before optimizing EC2 instances that have become idle or underutilized. A longer delay increases the likelihood of placing new tasks on idle or underutilized instances instances, reducing startup time. A shorter delay helps reduce infrastructure costs by optimizing idle or underutilized instances,instances more quickly.

Valid values are:

• null - Uses the default optimization behavior.

• -1 - Disables automatic infrastructure optimization.

• A value between 0 and 3600 (inclusive) - Specifies the number of seconds to wait before optimizing instances.