Some Docker images like postgres and gitlab/gitlab-ce require the ability to set permissions and ownerships on files and directories, however this does not appear to be supported on Azure Container Instances (see here, here, here) due to the file shares being mounted as CIFS (SMB) and the underlying file system appearing to be NTFS.

Is there any way to mount an Azure file share or blob storage to my container with POSIX permissions and ownership support?

We use Terraform to deploy our infrastructure to Azure, so examples in HCL would be greatly appreciated.

I am not looking for alternatives such as Azure VMs, Azure PostgreSQL Server or Marketplace offerings.

  • ACI does not support your requirement for POSIX file system support at this time. Commented Oct 11, 2021 at 16:53
  • @JohnHanley I'm aware of that, my question is whether there is a concrete way to circumvent it, for example by manually mounting a share or image file or using some kind of proxy FUSE filesystem inside the container. There might already be a halfway elegant solution out there which is what I'm aiming for here. Commented Oct 12, 2021 at 8:08
  • There is no way. It's impossible. AKS doesn't do this either. Commented Oct 19, 2021 at 13:30

1 Answer 1


If you have not yet solved this you can use NFS to access data in storage account

Azure Files allows access through NFS and offers POSIX compliance


You can also have a look at other NFS access solutions in Azure


Then you can see here for instructions to mount this in Azure Container Instance

  • As of my last conversation with Microsoft Support, they have confirmed to me that the documentation is incorrect and that NFS shares are not supported in Azure Containers. Furthermore, the instructions you have linked are not tested and do not actually work because ACI does not allow mounting volumes inside the container. Commented May 6, 2022 at 6:25

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