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# AWS::Batch::ComputeEnvironment InfrastructureOptimization
<a name="aws-properties-batch-computeenvironment-infrastructureoptimization"></a>

The infrastructure optimization configuration for an Amazon ECS Managed Instances capacity provider. Specifies the idle-instance scale-in behavior.

## Syntax
<a name="aws-properties-batch-computeenvironment-infrastructureoptimization-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-batch-computeenvironment-infrastructureoptimization-syntax.json"></a>

```
{
  "[ScaleInAfter](#cfn-batch-computeenvironment-infrastructureoptimization-scaleinafter)" : {{Integer}}
}
```

### YAML
<a name="aws-properties-batch-computeenvironment-infrastructureoptimization-syntax.yaml"></a>

```
  [ScaleInAfter](#cfn-batch-computeenvironment-infrastructureoptimization-scaleinafter): {{Integer}}
```

## Properties
<a name="aws-properties-batch-computeenvironment-infrastructureoptimization-properties"></a>

`ScaleInAfter`  <a name="cfn-batch-computeenvironment-infrastructureoptimization-scaleinafter"></a>
The number of seconds an instance can remain idle before it is terminated. Valid values are `-1` or `0` to `3600`. Use `-1` as a special value to disable scale-in (instances are never terminated for being idle). If not specified, a default value applies.  
*Required*: No  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)