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# AWS::ECR::Repository LifecyclePolicy
<a name="aws-properties-ecr-repository-lifecyclepolicy"></a>

The `LifecyclePolicy` property type specifies a lifecycle policy. For information about lifecycle policy syntax, see [Lifecycle policy template](https://docs.amazonaws.cn/AmazonECR/latest/userguide/LifecyclePolicies.html) in the *Amazon ECR User Guide*.

## Syntax
<a name="aws-properties-ecr-repository-lifecyclepolicy-syntax"></a>

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

### JSON
<a name="aws-properties-ecr-repository-lifecyclepolicy-syntax.json"></a>

```
{
  "[LifecyclePolicyText](#cfn-ecr-repository-lifecyclepolicy-lifecyclepolicytext)" : String,
  "[RegistryId](#cfn-ecr-repository-lifecyclepolicy-registryid)" : String
}
```

### YAML
<a name="aws-properties-ecr-repository-lifecyclepolicy-syntax.yaml"></a>

```
  [LifecyclePolicyText](#cfn-ecr-repository-lifecyclepolicy-lifecyclepolicytext): String
  [RegistryId](#cfn-ecr-repository-lifecyclepolicy-registryid): String
```

## Properties
<a name="aws-properties-ecr-repository-lifecyclepolicy-properties"></a>

`LifecyclePolicyText`  <a name="cfn-ecr-repository-lifecyclepolicy-lifecyclepolicytext"></a>
The JSON repository policy text to apply to the repository.  
*Required*: No  
*Type*: String  
*Minimum*: `100`  
*Maximum*: `30720`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`RegistryId`  <a name="cfn-ecr-repository-lifecyclepolicy-registryid"></a>
The Amazon account ID associated with the registry that contains the repository. If you do
 not specify a registry, the default registry is assumed.  
*Required*: No  
*Type*: String  
*Pattern*: `^[0-9]{12}$`  
*Minimum*: `12`  
*Maximum*: `12`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## See also
<a name="aws-properties-ecr-repository-lifecyclepolicy--seealso"></a>
+ [Creating a lifecycle policy](https://docs.amazonaws.cn/AmazonECR/latest/userguide/lp_creation.html) in the *Amazon ECR User Guide*
+ [PutLifecyclePolicy](https://docs.amazonaws.cn/AmazonECR/latest/APIReference/API_PutLifecyclePolicy.html) in the *Amazon ECR API Reference*