This extension did not ship with Azure Stack but I went ahead and tried it out by downloading the repo here. I'm getting pretty far as the extension is actually running in the VM but exiting with code 127.
Update: I copied the zip from a Linux machine deployed in Azure and this one works perfectly on Azure Stack. I guess the repo available to public here is a different version.
This extension did not ship with Azure Stack but I went ahead and tried it out by downloading the repo here. I'm getting pretty far as the extension is actually running in the VM but exiting with code 127.