For us, the size of the local repos is not an issue - we already have local
repos anyway, and use RedHat's Satellite server to manage them. Compounding
this, we use stateless nodes, so every reboot would re-download a lot of
RPMs.
Building images with genimage the standard xCAT way ends up with
horrendously outdated software (and in at least one case, we ran into
version incompatibilities)..
I'm currently working on a "cobbled-together" way to build a local repo to
replace the one xCAT uses, but I'd much prefer to have it officially
supported by xCAT.
_______________________________________________________________________
Kevin Keane | Systems Architect | University of San Diego ITS |
kke...@sandiego.edu
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On Tue, Sep 4, 2018 at 1:55 AM, Hermann Jonathan (CI/OSB5) <
jonathan.herma...@de.bosch.com> wrote:
> Hi Kilian,
>
> have you compared download sizes for repos vs. having each node go online?
> In my experience, repos contain WAY more packages than are actually
> installed on cluster nodes. Saving bandwidth only works with a reasonably
> high number of nodes of the same architecture. Delta packages, if
> available, help to even further reduce bandwidth. As does a proxy tailored
> to your needs.
>
> Controlling versions is easier though with local repos. Could also be done
> with config mgmt, and more flexible so. But local repos are the easy way
> for sure.
>
> Mit freundlichen Grüßen / Best regards
>
> Jonathan Hermann
>
> CI Operations - Server Services IBM AIX (CI/OSB5)
> Robert Bosch GmbH | Postfach 30 02 20 | 70442 Stuttgart | GERMANY |
> www.bosch.com
> Tel. +49 711 811-57169 | Mobil +49 152 07563620 |
> jonathan.herma...@de.bosch.com
>
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>
>
>
> -----Original Message-----
> From: Kilian Cavalotti <kilian.cavalotti.w...@gmail.com>
> Sent: Mittwoch, 22. August 2018 18:02
> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
> Subject: Re: [xcat-user] Using online repos with xCAT
>
> Hi Kevin, Keith,
>
>
> On Tue, Aug 21, 2018 at 4:48 PM, Kevin Keane <kke...@sandiego.edu> wrote:
> > I was actually going to ask the same question Keith was asking.> I
> > think Keith wasn't asking about the xcat repositories, but about the
> operating system repositories (the ones that are ordinarily created by the
> copycds command).
>
> We usually do it by either mirroring those repositories on the management
> node (which is good to make sure all the nodes get the same version of the
> repo at any given time, and to save bandwidth), or by adding online
> repositories on the nodes in postscripts.
>
> Cheers,
> --
> Kilian
>
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