Vimage vs. jails

[Peter Cornelius]

Hi guys,

Thanks for the response, so it wasn´t such a bad question after all :)

I "have" to pay toll to wifey & kids for a couple of days and will go on after that (hoping that the kernels I then build actually to run ;-)).

Regards,

Peter.

-------- Original-Nachricht --------
> Datum: Tue, 18 Aug 2009 16:28:45 -0700
> Von: Julian Elischer <julian at elischer.org>
> An: Pierre Guinoiseau <geekounet at poildetroll.net>
> CC: Peter Cornelius <pcc at gmx.net>, freebsd-virtualization at freebsd.org, freebsd-jail at freebsd.org
> Betreff: Re: Vimage vs. jails

> Pierre Guinoiseau wrote:
> > Hi,
> > 
> > Julian Elischer wrote:
> >> it's not Vimage vs Jails
> >> but
> >> Vimage as part of Jails.
> >>
> >>
> >> Peter Cornelius wrote:
> >>> Hi there,
> >>>
> >>> I just see the vimage changes going into RELENG_8 and I now am
> >>> getting my hands dirty, finally. So thanks to all involved.
> >>>
> >>> Just to get my head around this the right way, I understand that
> >>> there is no plan to merge vimage and jail into a single jail
> >>> utility, right?
> >> Actually it IS now all one utility...
> >> Add the 'vnet' option to jail to get it to create a new vnet withthe
> >> jail, otherwise it acts as before.
> >>
> >>> I may want a large number of vimages "w/o" jails, or at least a
> >>> number of jails "inside" a couple of vimages (reason being the
> >>> default route issue raised a while ago).
> >> can you expand on that?
> >>
> >> example comand lines include:
> >> jail -c host.hostname=test path=/ vnet command=/bin/tcsh
> >> ( make a jail with the same root as normal but with a separate
> >> network stack.)
> >>
> >>
> >> jail -c host.hostname=test path=/ vnet children.max=4 \
> >>            command=/bin/tcsh
> >> (same as above, excep the jail made is in turn able to make
> >> up to 4 child jails
> >>
> > 
> > BTW, when will we be able to set those new parameters in rc.conf? The
> > current jails rc script still uses the old way for setting up (or maybe
> > did I missed something?), so it doesn't allow to add those new
> > parameters. :( It may be a desirable feature for 8.0-RELEASE I think.
> 
> 
> The 8.0  vimage/vnet feature is a "feature test" facility.
> it allows you to test it out but no-one in their right mind
> would tell you to use it in production.
> 
> It's been some time since I used the rc.conf method of starting jails 
> so  I can't speak to how much change would be required.
> possibly just the addition of "jail_xxx_extra_params".
> 
> I forgot to mention the ifconfig vnet additions too, to allow an 
> interface to be assigned to a particular jail.
> 
> 
> > 
> >>> Thanks again, and
> >>>
> >>> All the best,
> >>>
> >>> Peter.
> >>>
> >>> ---
> >>>
> >>> PS. I see a couple of lock order reversals on RELENG_8 which I
> >>> would like to report if the build currently running did not address
> >>> them -- do we prefer them to a mailing list or to gnats?
> > 
> > 

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