libvirt users - Aug 2017 - Re: network configuration for guest specific dns-servers

Thanks a lot, Martin!

Am Donnerstag, den 31.08.2017, 10:11 +0200 schrieb Martin
Kletzander:
> On Thu, Aug 31, 2017 at 12:10:22AM +0200, David Ayers wrote:
> >
> >We would like to configure guest specific dns-servers as would be done
> >with the --dhcp-option of dnsmasq.  I was expecting to be able to do
> >something like:
> >
> >    <host mac="00:16:3e:77:e2:ed"
> >	name="foo.example.com"
> >	ip="192.168.122.10"
> >	dhcp-option="dns-server,127.0.0.1" />
> >
> >but it seems that this isn't the correct approach, as virsh
net-edit
> >default removes that attribute definition.
> >
> 
> AFAIK the support for this was not added.  Feel free to request this in
> our bugzilla [1] so that we can track it.  Or, even better, send a patch
> if you have some time ;) It should not be difficult.
Okay, I'll be sure to add it to bugzilla sometime soon.

Your request for a patch implies that this would be a welcome feature
and will not be rediscussed on its principal merit correct?
(implementation details notwithstanding ;-) )

The reason I ask, is that I do not have a development environment ready
for libvirt and there will be quite a bit work before I've read through
all your guidelines, setup a development VM (I suppose that should be
easiest with the latest stable release of Fedora, RHEL or CentOS?)

I'm not sure yet that I can muster up the time, but it does seem
interesting, so a may give it shot.  It would be very disappointing if
it then were rejected on principle.

Thank you!
David

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David Ayers - Team Austria
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Am Donnerstag, den 31.08.2017, 11:32 +0200 schrieb David
Ayers:
> 
> Am Donnerstag, den 31.08.2017, 10:11 +0200 schrieb Martin Kletzander:
> > 
> > AFAIK the support for this was not added.  Feel free to request this
in
> > our bugzilla [1] so that we can track it.  Or, even better, send a
patch
> > if you have some time ;) It should not be difficult.
> 
> Okay, I'll be sure to add it to bugzilla sometime soon.
Actually, this was already reported (on the last day of 2010):
https://bugzilla.redhat.com/show_bug.cgi?id=666556
and seems to restated (two years later) in:
https://bugzilla.redhat.com/show_bug.cgi?id=824573

and by the looks of this, generic dhcp options at global scope are
already contentious, let alone at host scope.

So I guess we my stop configuring dnsmasq via libvirt.

Cheers,
David


-- 
David Ayers - Team Austria
Free Software Foundation Europe (FSFE) []          (http://www.fsfe.org)
Join the Fellowship of FSFE!         [][][]      (https://fsfe.org/join)
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On Thu, Aug 31, 2017 at 01:09:14PM +0200, David Ayers
wrote:
>Am Donnerstag, den 31.08.2017, 11:32 +0200 schrieb David Ayers:
>>
>> Am Donnerstag, den 31.08.2017, 10:11 +0200 schrieb Martin Kletzander:
>> >
>> > AFAIK the support for this was not added.  Feel free to request
this in
>> > our bugzilla [1] so that we can track it.  Or, even better, send a
patch
>> > if you have some time ;) It should not be difficult.
>>
>> Okay, I'll be sure to add it to bugzilla sometime soon.
>
>Actually, this was already reported (on the last day of 2010):
>https://bugzilla.redhat.com/show_bug.cgi?id=666556
>and seems to restated (two years later) in:
>https://bugzilla.redhat.com/show_bug.cgi?id=824573
>
>and by the looks of this, generic dhcp options at global scope are
>already contentious, let alone at host scope.
>
>So I guess we my stop configuring dnsmasq via libvirt.
>
Oh, look at that.  It's good that you've found it.  Of course there are
people more proficient in the networking area who have way more thing on
their radar.  Looks like this is very often requested thing also.  I
can't speak for arbitrary options, but named ones that we know what to
map them to, should be fine and not rejected (at least not right away).
But others (especially Laine; Cc'd) could be more specific WRT your
request.
>Cheers,
>David
>
>
>--
>David Ayers - Team Austria
>Free Software Foundation Europe (FSFE) []          (http://www.fsfe.org)
>Join the Fellowship of FSFE!         [][][]      (https://fsfe.org/join)
>Your donation powers our work!         ||       (http://fsfe.org/donate)