Merge pull request #250626 from greg-lindsay/appgw-upd

add preview alert

Author: JamesJBarnett

articles/application-gateway/for-containers/overview.md

@@ -7,7 +7,7 @@ ms.custom: references_regions
 ms.service: application-gateway
 ms.subservice: appgw-for-containers
 ms.topic: overview
-ms.date: 07/24/2023
+ms.date: 09/07/2023
 ms.author: greglin
 ---
 
@@ -17,6 +17,10 @@ Application Gateway for Containers is a new application (layer 7) [load balancin
 
 Application Gateway for Containers is the evolution of the [Application Gateway Ingress Controller](../ingress-controller-overview.md) (AGIC), a [Kubernetes](/azure/aks) application that enables Azure Kubernetes Service (AKS) customers to use Azure's native Application Gateway application load-balancer. In its current form, AGIC monitors a subset of Kubernetes Resources for changes and applies them to the Application Gateway, utilizing Azure Resource Manager (ARM). 
 
+> [!IMPORTANT]
+> Application Gateway for Containers is currently in PREVIEW.<br>
+> See the [Supplemental Terms of Use for Microsoft Azure Previews](https://azure.microsoft.com/support/legal/preview-supplemental-terms/) for legal terms that apply to Azure features that are in beta, preview, or otherwise not yet released into general availability.
+
 ## How does it work?
 
 Application Gateway for Containers is made up of three components: