Microsoft has made changes to Azure App Service to enable clustering and transactions for applications deployed in EAP. They have done testing but we need to validate as well.

Microsoft has provided the following instructions to deploy an application for testing.

To create a JBoss Web App, follow the instructions on this README: 

https://github.com/Azure-Samples/clustered-jboss-demo

Set the LOCATION to “westcentralus”
WEBAPP_NAME needs to be globally unique
You can skip steps 4 and 5, those steps will deploy the sample app, but you probably want to deploy an app you’re more familiar with

Once the resource is created, you have a few options to deploy your apps to JBoss:
You can use the Maven plugin. Quickstart: Quickstart: Create a Java app on Azure App Service - Azure App Service | Microsoft Docs
More info: azure-maven-plugins/README.md at develop · microsoft/azure-maven-plugins (github.com)
You can use the VS Code plugin for Azure: Visual Studio Code Azure Extensions
Once installed, you right-click the webapp you created earlier and click “Deploy”. This will open a wizard to deploy the archive file