[lxc-devel] [PATCH] Update Fedora and CentOS templates for common conf includes.

Wed Jan 22 16:38:29 UTC 2014

On Wed, 2014-01-22 at 10:35 -0500, Stéphane Graber wrote: 
> On Wed, Jan 22, 2014 at 09:29:23AM -0500, Michael H. Warfield wrote:
> > On Tue, 2014-01-21 at 20:25 -0500, Stéphane Graber wrote: 
> > > On Tue, Jan 21, 2014 at 11:56:56AM -0500, Michael H. Warfield wrote:
> > > > Update Fedora and CentOS templates for common conf includes.
> > > > 
> > > > This updates the Fedora and CentOS templates to utilize a common
> > > > included config.  This is largely based on the changes in the Oracle
> > > > template with some exceptions.
> > > > 
> > > > Dropping of setpcap (present in the Oracle template) is commented out in
> > > > the Fedora template.  It seems to cause problems, such as large login
> > > > delays with Fedora 20 containers (but not Fedora 19 - strange).
> > > > 
> > > > The Fedora template is further modified to disable systemd-journald.service
> > > > as it is unnecessary in a container and causes serious problems when
> > > > running in a Fedora 20 container.
> > > > 
> > > > The Fedora template is also updated to default to Fedora 20 when running
> > > > on a non-Fedora host.
> > > > 
> > > > Regards,
> > > > Mike
> > > > 
> > > > Signed-off-by: Michael H. Warfield <mhw at WittsEnd.com>
> > > 
> > > Acked-by: Stéphane Graber <stgraber at ubuntu.com>
> > > 
> > > I'll setup builds for CentOS 6.5 on amd64 and i386 and for Fedora 19 and
> > > 20 also on amd64 and i386.
> > > 
> > > I believe Fedora 20 also supports armhf but that one may need a bit more
> > > work to get going (do you know if your template works with armhf?).
> > 
> > Fedora does support armhf in mainline now.  Previously it was in aux.
> > The template was definitely working with Raspberry Pi armhf with
> > Fedora18.  That was before they created the "Pidora" respin which broke
> > the Fedora template thanks to the name change and some repo changes.
> > Since then, I've also done that distro agnostic bootstrap coding.  I
> > wouldn't be surprised if it was broken, but it should be close.  I'll
> > have to give it a shot on one of my RPi's.
> > 
> > Regards,
> > Mike

> The image build worked at least, I still need to actually test the
> resulting images to make sure they work though.

> Btw, any chance of getting -A working before 1.0 release?

Oooo...  Ouch...  Yeah, that place holder has been in there since long
before I first stuck my nose in there.  I can only foresee two cases
where that would even be possible.

Build i386 on x86_64 host

Build arm (software floating point - arm3, arm4, arm5) on armhfp
(hardware floating point - arm6+) host.  Except, arm is not in mainline,
only armhfp is, so it's doubtful this could be done in the short term.

I can see where the first case would be useful to you for building
download templates.  I'm not so sure how useful the second one would be.

Other cases would require hardware emulation.

I can't guarantee anything but I'll look at it, at least for the i386 on
x86_64 case.  It might be possible in the limited case to kick something
out quickly.  The CentOS template may actually be more complicated than
the Fedora template because I did the bootstrap logic and everything is
done in chrooted environments in the Fedora template that should cover
the arch jump.

ITMT, I've pinged Fredric over at Suse, privately, to see what we can
get done with the opensuse template.  You listed it as broken for your
download template due to a requirement of zypper (it also requires
"build") plus it needed conversion to use the common config includes and
you needed a base container tarball, iirc.

It's got more problems than that.  Using a prebuild OpenSUSE starting
container on my Fedora host, I've been able to build containers for
OpenSUSE 12.3 and 13.1 (latest) but both have systemd problems and
doubtlessly need autodev set up (the autodetection logic still keeps us
out of trouble and keeps us from blowing up a systemd host).  It's also
set up for a hardcoded version (12.3) with no version option.  :-P

That one needs some attention paid too it.  Ideally, maybe Fredric or
one of the other Suse guys can dig into it.  I've had my nose into it
just deep enough to think a lot of the yum logic SHOULD work and deep
enough to go "oh here there be dragons".

Regards,
Mike
-- 
Michael H. Warfield (AI4NB) | (770) 978-7061 |  mhw at WittsEnd.com
   /\/\|=mhw=|\/\/          | (678) 463-0932 |  http://www.wittsend.com/mhw/
   NIC whois: MHW9          | An optimist believes we live in the best of all
 PGP Key: 0x674627FF        | possible worlds.  A pessimist is sure of it!

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