Implement workaround to fix ZFS support for Podman LXC constraint

[tyvsmith]

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yes

A clear and concise description of the issue.

Currently, Podman is noted that ZFS Overlay is not supported.

The follow error is noted:

[graphdriver] prior storage driver overlay failed: 'overlay' is not supported over zfs, a mount_program is required: backing file system is unsupported for this graph driver 
Error: 'overlay' is not supported over zfs, a mount_program is required: backing file system is unsupported for this graph driver

There is a workaround setting up a mount program documented here that should probably be incorporated into the script to remove this limitation.

Add the following files and make overlayzfsmount chmod+x

/usr/local/bin/overlayzfsmount

#!/bin/sh
exec /bin/mount -t overlay overlay "$@"

/etc/containers/storage.conf

[storage]
driver = "overlay"
runroot = "/run/containers/storage"
graphroot = "/var/lib/containers/storage"

[storage.options]
mount_program = "/usr/local/bin/overlayzfsmount"

What settings are you currently utilizing?

Default Settings

Which Linux distribution are you employing?

Debian 12

If relevant, including screenshots or a code block can be helpful in clarifying the issue.

No response

Please provide detailed steps to reproduce the issue.

No response