Can an App Service living in an App Service Environment/VNet that has an Azure Gateway to an on prem network work with network files? I'd like to be able to read and save files on a network drive but given that this will take some trial and error want to make sure it's a viable option first.
The backup plan is to use Azure File Sync to Azure Storage but given the delay in cloud files syncing, it may not work for my needs.
Azure App Services does not support SMB.
https://github.com/projectkudu/kudu/wiki/Azure-Web-App-sandbox#restricted-outgoing-ports
Regardless of address, applications cannot connect to anywhere using ports 445, 137, 138, and 139. In other words, even if connecting to a non-private IP address or the address of a virtual network, connections to ports 445, 137, 138, and 139 are not permitted.