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

# AWS::AutoScalingPlans::ScalingPlan ApplicationSource
<a name="aws-properties-autoscalingplans-scalingplan-applicationsource"></a>

`ApplicationSource` is a property of [ScalingPlan](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/aws-resource-autoscalingplans-scalingplan.html) that specifies the application source to use with a scaling plan. You can create one scaling plan per application source. 

## Syntax
<a name="aws-properties-autoscalingplans-scalingplan-applicationsource-syntax"></a>

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

### JSON
<a name="aws-properties-autoscalingplans-scalingplan-applicationsource-syntax.json"></a>

```
{
  "[CloudFormationStackARN](#cfn-autoscalingplans-scalingplan-applicationsource-cloudformationstackarn)" : String,
  "[TagFilters](#cfn-autoscalingplans-scalingplan-applicationsource-tagfilters)" : [ TagFilter, ... ]
}
```

### YAML
<a name="aws-properties-autoscalingplans-scalingplan-applicationsource-syntax.yaml"></a>

```
  [CloudFormationStackARN](#cfn-autoscalingplans-scalingplan-applicationsource-cloudformationstackarn): String
  [TagFilters](#cfn-autoscalingplans-scalingplan-applicationsource-tagfilters): 
    - TagFilter
```

## Properties
<a name="aws-properties-autoscalingplans-scalingplan-applicationsource-properties"></a>

`CloudFormationStackARN`  <a name="cfn-autoscalingplans-scalingplan-applicationsource-cloudformationstackarn"></a>
The Amazon Resource Name (ARN) of a CloudFormation stack.  
You must specify either a `CloudFormationStackARN` or `TagFilters`.  
*Required*: No  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`TagFilters`  <a name="cfn-autoscalingplans-scalingplan-applicationsource-tagfilters"></a>
A set of tag filters (keys and values). Each tag filter specified must contain a key with values as optional. Each scaling plan can include up to 50 keys, and each key can include up to 20 values.  
Tags are part of the syntax that you use to specify the resources you want returned when configuring a scaling plan from the Amazon Auto Scaling console. You do not need to specify valid tag filter values when you create a scaling plan with CloudFormation. The `Key` and `Values` properties can accept any value as long as the combination of values is unique across scaling plans. However, if you also want to use the Amazon Auto Scaling console to edit the scaling plan, then you must specify valid values.  
You must specify either a `CloudFormationStackARN` or `TagFilters`.  
*Required*: No  
*Type*: Array of [TagFilter](aws-properties-autoscalingplans-scalingplan-tagfilter.md)  
*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-autoscalingplans-scalingplan-applicationsource--seealso"></a>
+  [Scaling Plans User Guide](https://docs.amazonaws.cn/autoscaling/plans/userguide/what-is-a-scaling-plan.html)