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# AWS::CodePipeline::Pipeline VariableDeclaration
<a name="aws-properties-codepipeline-pipeline-variabledeclaration"></a>

A variable declared at the pipeline level.

## Syntax
<a name="aws-properties-codepipeline-pipeline-variabledeclaration-syntax"></a>

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

### JSON
<a name="aws-properties-codepipeline-pipeline-variabledeclaration-syntax.json"></a>

```
{
  "[DefaultValue](#cfn-codepipeline-pipeline-variabledeclaration-defaultvalue)" : String,
  "[Description](#cfn-codepipeline-pipeline-variabledeclaration-description)" : String,
  "[Name](#cfn-codepipeline-pipeline-variabledeclaration-name)" : String
}
```

### YAML
<a name="aws-properties-codepipeline-pipeline-variabledeclaration-syntax.yaml"></a>

```
  [DefaultValue](#cfn-codepipeline-pipeline-variabledeclaration-defaultvalue): String
  [Description](#cfn-codepipeline-pipeline-variabledeclaration-description): String
  [Name](#cfn-codepipeline-pipeline-variabledeclaration-name): String
```

## Properties
<a name="aws-properties-codepipeline-pipeline-variabledeclaration-properties"></a>

`DefaultValue`  <a name="cfn-codepipeline-pipeline-variabledeclaration-defaultvalue"></a>
The value of a pipeline-level variable.  
*Required*: No  
*Type*: String  
*Pattern*: `.*`  
*Minimum*: `1`  
*Maximum*: `1000`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Description`  <a name="cfn-codepipeline-pipeline-variabledeclaration-description"></a>
The description of a pipeline-level variable. It's used to add additional context about the variable, and not being used at time when pipeline executes.  
*Required*: No  
*Type*: String  
*Pattern*: `.*`  
*Minimum*: `0`  
*Maximum*: `200`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Name`  <a name="cfn-codepipeline-pipeline-variabledeclaration-name"></a>
The name of a pipeline-level variable.  
*Required*: Yes  
*Type*: String  
*Pattern*: `[A-Za-z0-9@\-_]+`  
*Minimum*: `1`  
*Maximum*: `128`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)