libvirt users - Aug 2014 - Re: How to enable SELinux driver for libvirt?

Hi guys,

It seems libvirt disable SELinux driver by default.
How to enable SELinux driver for libvirt?

-- 
------------
Jackie
Best Regards

On 08/21/2014 01:38 AM, Qiang Guan wrote:
> Hi guys,
> 
> It seems libvirt disable SELinux driver by default.
You need to provide more details to substantiate your claim.  What
platform are you running on, and what version of libvirt?  Did you build
it yourself or are you using the pre-built distro version?

Fedora-based distributions (and that includes RHEL and CentOS) ship the
distro version with SELinux support ON by default.  However, actually
using SELinux when the support is present depends on your
/etc/libvirt/*.conf settings: qemu.conf uses SELinux by default, while
lxc.conf has to be manually tweaked to turn on the use of SELinux
(that's because proper labeling for an LXC container is a lot more
involved).  That said, the conf files only give defaults, and it is
still possible to do per-domain use of SELinux (the virt-sandbox app is
one that always tries to use SELinux labeling when creating LXC guests,
regardless of the *.conf defaults).
> How to enable SELinux driver for libvirt?
If you self-compiled, make sure you had the right devel libraries
present to ensure the SELinux support is compiled in.  If you are using
a distro, you may want to file a support ticket with your distro provider.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

于 2014年08月21日 20:58, Eric Blake 写道:
> On 08/21/2014 01:38 AM, Qiang Guan wrote:
>> Hi guys,
>>
>> It seems libvirt disable SELinux driver by default.
> You need to provide more details to substantiate your claim.  What
> platform are you running on, and what version of libvirt?  Did you build
> it yourself or are you using the pre-built distro version?
>
> Fedora-based distributions (and that includes RHEL and CentOS) ship the
> distro version with SELinux support ON by default.  However, actually
> using SELinux when the support is present depends on your
> /etc/libvirt/*.conf settings: qemu.conf uses SELinux by default, while
> lxc.conf has to be manually tweaked to turn on the use of SELinux
> (that's because proper labeling for an LXC container is a lot more
> involved).  That said, the conf files only give defaults, and it is
> still possible to do per-domain use of SELinux (the virt-sandbox app is
> one that always tries to use SELinux labeling when creating LXC guests,
> regardless of the *.conf defaults).
>
>> How to enable SELinux driver for libvirt?
> If you self-compiled, make sure you had the right devel libraries
> present to ensure the SELinux support is compiled in.  If you are using
> a distro, you may want to file a support ticket with your distro provider.
>
Hi, Eric, thanks for help.
I'm using ubuntu14.04 with libvirt of version 1.2.2 from ubuntu trusty 
source.
I want to use SELinux labeling with dynamic type for my lxc which is 
started by libvirt API.

I don't know whether SELinux support is compiled in the ubuntu release.
How can I recognize whether SELinux is compiled in libvirt of a release 
version?
If compiled, which configure need to be set to enable SELinux driver for 
libvirt?

-- 
------------
Jackie
Best Regards