On Tue, Mar 26, 2019 at 06:01:48PM +0100, Andrea Bolognani wrote:
Our current defaults are root:wheel on FreeBSD and macOS, root:root
everywhere else.
Looking at what downstream distributions actually do, we can see that
these defaults are overriden the vast majority of the time, with a
number of variations showing up in the wild:
* qemu:qemu -> Used by CentOS, Fedora, Gentoo, OpenSUSE, RHEL
and... As it turns out, our very own spec file :)
* libvirt-qemu:libvirt-qemu -> Used by Debian.
* libvirt-qemu:kvm -> Used by Ubuntu.
* nobody:nobody -> Used by Arch Linux.
Based on this information, we can do a better job at integrating with
downstream packages: if the distro-specific user and group already
exist on the system then we use them, and if not (or we're building
on an unknown OS) we just use root:root as we would have before.
This change makes it less likely that people building from source
will end up running their guests as root, which is a very desiderable
outcome from the security point of view.
Signed-off-by: Andrea Bolognani <abologna(a)redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange(a)redhat.com>
Regards,
Daniel
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