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::AppStream::AppBlockBuilder VpcConfig
<a name="aws-properties-appstream-appblockbuilder-vpcconfig"></a>

Describes VPC configuration information for fleets and image builders.

## Syntax
<a name="aws-properties-appstream-appblockbuilder-vpcconfig-syntax"></a>

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

### JSON
<a name="aws-properties-appstream-appblockbuilder-vpcconfig-syntax.json"></a>

```
{
  "[SecurityGroupIds](#cfn-appstream-appblockbuilder-vpcconfig-securitygroupids)" : [ String, ... ],
  "[SubnetIds](#cfn-appstream-appblockbuilder-vpcconfig-subnetids)" : [ String, ... ]
}
```

### YAML
<a name="aws-properties-appstream-appblockbuilder-vpcconfig-syntax.yaml"></a>

```
  [SecurityGroupIds](#cfn-appstream-appblockbuilder-vpcconfig-securitygroupids): 
    - String
  [SubnetIds](#cfn-appstream-appblockbuilder-vpcconfig-subnetids): 
    - String
```

## Properties
<a name="aws-properties-appstream-appblockbuilder-vpcconfig-properties"></a>

`SecurityGroupIds`  <a name="cfn-appstream-appblockbuilder-vpcconfig-securitygroupids"></a>
The identifiers of the security groups for the fleet or image builder.  
*Required*: No  
*Type*: Array of String  
*Maximum*: `5`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`SubnetIds`  <a name="cfn-appstream-appblockbuilder-vpcconfig-subnetids"></a>
The identifiers of the subnets to which a network interface is attached from the fleet instance or image builder instance. Fleet instances use one or more subnets. Image builder instances use one subnet.  
*Required*: No  
*Type*: Array of String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)