Rem,
     My guess would be CIFS doesn't support SELinux, so when it tries to label the mount point it fails. Try and run without SELinux enabled. Try --privileged as a quick and dirty, but I believe there is a --security-opt= label to just disable SELinux.

Best Regards
Scott M

On Thu, Apr 1, 2021 at 3:32 AM <rem@llgc.org.uk> wrote:
Hi,
I have a problem mapping a cifs network share to a container.
It's an auto-mount and from the /etc/auto.mnt I can see it's mounted with: -fstype=cifs,rw,noperm,vers=3.0
The mount is attached to the /mnt/share-name

I run image of the container with:
sudo podman run --pod pod-name --detach --name container-name -v /mnt/share-name:/usr/src/app/share:rw,z .........

I get:
Error: failed to set file label on /mnt/share-name: operation not supported

Wonder if anybody could help me and point me to the right direction.

Thanks
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