Podman image scp should never enter the Podman UserNS unless it needs to. This allows for
a sudo exec.Command to transfer images to and from rootful storage. If this command is run using sudo,
the simple sudo podman save/load does not work, machinectl/su is necessary here.
This modification allows for both rootful and rootless transfers, and an overall change of scp to be
more of a wrapper function for different load and save calls as well as the ssh component
Signed-off-by: cdoern <cdoern@redhat.com>
Includes a test for the stdout-goes-away bug (crun #756).
Skip on Ubuntu due to a many-months-old kernel bug that
keeps getting fixed and then un-fixed.
Signed-off-by: Ed Santiago <santiago@redhat.com>
cdoern