Best Practices for Enabling Application Settings Persistence

To enable application settings persistence without providing internet access to your instances, use a VPC endpoint. This endpoint must be in the VPC to which your AppStream 2.0 instances are connected. You must attach a custom policy to enable AppStream 2.0 access to the endpoint. For information about how to create the custom policy, see the Home Folders and VPC Endpoints section in Networking and Access for Amazon AppStream 2.0. For more information about private Amazon S3 endpoints, see VPC Endpoints and Endpoints for Amazon S3 in the Amazon VPC User Guide.