[libvirt] IPv6 in Libvirt LXC

Richard Weinberger richard.weinberger at gmail.com
Tue Jun 10 13:57:02 UTC 2014


On Mon, Jun 2, 2014 at 6:22 PM, Daniel P. Berrange <berrange at redhat.com> wrote:
> IIUC, we'd need to recursively chown the files under /proc/sys/net to
> give them the remapped UID/GID of the root user in the container, in
> order that they can be used.
>
> So overall I think we'd have to do
>
>  - Make either /proc/sys/net or /proc/sys read-write
>
>  - If userns is active, recursive chown /proc/sys/net (or a subset of
>    files in it that we explicitly want to grant access to)

Please just make /proc/ and /sys writeable (or at least the setting
optional for paranoid folks).
If the userns was setup correctly by libvirt and a container user/root still
can do bad things this a plain kernel bug and needs fixing.
No need to paper over it in libvirt.

-- 
Thanks,
//richard




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