This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).

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

Configuration for the Amazon EKS cluster that supports the AWS Batch compute environment. The cluster must exist before the compute environment can be created.

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

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

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

```
{
  "[EksClusterArn](#cfn-batch-computeenvironment-eksconfiguration-eksclusterarn)" : {{String}},
  "[KubernetesNamespace](#cfn-batch-computeenvironment-eksconfiguration-kubernetesnamespace)" : {{String}}
}
```

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

```
  [EksClusterArn](#cfn-batch-computeenvironment-eksconfiguration-eksclusterarn): {{String}}
  [KubernetesNamespace](#cfn-batch-computeenvironment-eksconfiguration-kubernetesnamespace): {{String}}
```

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

`EksClusterArn`  <a name="cfn-batch-computeenvironment-eksconfiguration-eksclusterarn"></a>
The Amazon Resource Name (ARN) of the Amazon EKS cluster. An example is `arn:aws:eks:us-east-1:123456789012:cluster/ClusterForBatch`.   
*Required*: Yes  
*Type*: String  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`KubernetesNamespace`  <a name="cfn-batch-computeenvironment-eksconfiguration-kubernetesnamespace"></a>
The namespace of the Amazon EKS cluster. AWS Batch manages pods in this namespace. The value can't left empty or null. It must be fewer than 64 characters long, can't be set to `default`, can't start with "`kube-`," and must match this regular expression: `^[a-z0-9]([-a-z0-9]*[a-z0-9])?$`. For more information, see [Namespaces](https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/) in the Kubernetes documentation.  
*Required*: Yes  
*Type*: String  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for AWS CloudFormation. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query AWSCloudFormation` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).