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# AWS::EKS::Cluster CertificateAuthority
<a name="aws-properties-eks-cluster-certificateauthority"></a>

An object representing a certificate authority (CA) for an Amazon EKS cluster.

## Syntax
<a name="aws-properties-eks-cluster-certificateauthority-syntax"></a>

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

### JSON
<a name="aws-properties-eks-cluster-certificateauthority-syntax.json"></a>

```
{
  "[Active](#cfn-eks-cluster-certificateauthority-active)" : {{ActiveCertificateAuthority}},
  "[Data](#cfn-eks-cluster-certificateauthority-data)" : {{String}}
}
```

### YAML
<a name="aws-properties-eks-cluster-certificateauthority-syntax.yaml"></a>

```
  [Active](#cfn-eks-cluster-certificateauthority-active): {{
    ActiveCertificateAuthority}}
  [Data](#cfn-eks-cluster-certificateauthority-data): {{String}}
```

## Properties
<a name="aws-properties-eks-cluster-certificateauthority-properties"></a>

`Active`  <a name="cfn-eks-cluster-certificateauthority-active"></a>
Property description not available.  
*Required*: No  
*Type*: [ActiveCertificateAuthority](aws-properties-eks-cluster-activecertificateauthority.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Data`  <a name="cfn-eks-cluster-certificateauthority-data"></a>
The Base64-encoded public certificate of the certificate authority.  
*Required*: No  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)