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Does Azure App Service supports NFS File Share mount?
I created Premium Storage Account with File Share with NFS capability.
App Service is integrated with VNET with Route all enabled, Storage service endpoint is enabled for this subnet and Azure Storage Account is set to be accessible from this subnet.
When I go to my Linux App Service (hosting custom container), in the Configuration I can set Path Mappings. It allows me to select my NFS premium file share. However, after saving this configuration App Service won't start ("Application Error"). In such scenario even kudu is broken. After deleting mount, everything starts to work again.
Diagnostic log:
EventName:SiteStartFailed - Reason:Unknown - Message:[BYOS] Custom storage volume(s) failed to initialize: [/var/LWASFiles/Sites/app-**redacted**/9750b9dc-57d5-444b-bec6-fdfb4e3d0cbe] - ContainerIDs: - AdditionalInfo: { "lastState":"Starting", "timeTaken":31, "port":-1 }
Have you seen https://learn.microsoft.com/en-us/azure/app-service/configure-connect-to-azure-storage?tabs=portal&pivots=container-linux?
It's most important view the Limitations section and port to open.
Thanks, I've seen this. Unfortuneately it doesn't mention NFS mounts anywhere.
As for the ports, I'm using VNET integration without any additional NSGs or Firewalls so I guess any destination should be reachable. Also it explicitly mentions 445 port which is used for SMB but completely ignores ports used by NFS, hence I think NFS is just unsupported, but would be nice if I get confirmation.
In my previous image where I showed how mount the file storage on Azure Service App you can view an information that explain:
"*Azure storage support mount **only SMB file shares*"
Have you tried use Azure AKS for your solution?
Thanks, I missed that information.
Now it's clear that App Service doesn't support NFS file share mount.
I created my Premium Storage Account with Network File Share and then I mounted on my service app and all work fine as images below:
Thanks for your response.
As we can see per attached screenshots, you created a file share with SMB protocol support. I've tested this scenario before and it's working fine with SMB.
However, when you create a file share with NFS protocol support (https://learn.microsoft.com/en-us/azure/storage/files/files-nfs-protocol), App Service will let you mount this file share, but won't start.
I mean this option during creation of file share:
