Help novice looking for some pointers. I am new to Pulumi it is being used to deploy to Azure. We are creating a Windows Appservice and a Linux Appservice, The Linux Appservice has azure functions to ftp to the Windows Appservice, Problem is we would like to store the Credentials for the Windows Appservice in a keyvault that the azure functions can use. Two options appear to be is to somehow access App Credentials that are system generated for the FTPS Endpoint this I believe will not be possible as the AppService might not exist at the time of creating the linux Appservice. Another option would be to create User Credentials when we create the Windows Appservice. Are either options possible in Pulumi and if so where do I need to start looking at. We are utilizing typescript. Thansk