[Users] OpenVZ templates

[Сергей Мамонов]

>How does the newer vztt OS Template build system do what it does?  I don't
know yet...
That's what I'm talking about.

How create template from OS installed in chroot/container?  - It have
instruction in wiki and etc. It is not problem.

But what we must do with this source from
https://src.openvz.org/projects/OVZT - it is not obvious, without
documentation.
We will try build it with rpmbuild, but it fortune-telling and not good
way, I think. In this moment.


2015-06-30 13:30 GMT+03:00 Scott Dowdle <dowdle at montanalinux.org>:

> Greetings,
>
> ----- Original Message -----
> > I have nice idea. What about "week of templates" for OpenVZ? I really
> > want to setup my own server for building Debian-8 templates. But
> > there are no docs.
> >
> > Actually we have HUGE experience with PCS templates system and could
> > share this experience.
> >
> > But we need help from OpenVZ folks with some information "how you are
> > building templates for OpenVZ". Then we could offer good docs :)
>
> The place to start is:
>
> http://wiki.openvz.org/Category:Templates
>
> You may have already looked through some of that... but yeah... most all
> of that was contributed by community folks... and the bulk of it is
> outdated and not well maintained.  That is mostly the fault of the
> community.  The instructions for contributing an OS Template say to create
> a forum thread with details on how it was done... but no one has really
> followed those documentation instructions for a while now... and I'm guilty
> of that myself.
>
> The gist of it is that you can use a distro's regular package management
> tools to install a base / minimal system in a separate directory... and
> once done... just tar.gz|xz it up.  The official OS Templates from the
> OpenVZ Project tend to add a few vz-sourced stub packages to replace some
> bulky and/or unneeded packages (like a kernel package for example) but
> those really are not required.  Feel free to take a look at an example of
> my contributed Fedora OS Templates.
>
>
> http://download.openvz.org/template/precreated/contrib/fedora-21-x86_64-20150323.tar.xz
>
> In particular, notice the two files I've included within it to generate
> the regular and minimal flavors:
>
> /root/create-fedora21-ostemplate.sh
> /root/create-fedora21minimal-ostemplate.sh
>
> Basically whenever I want to update my contributed OS Templates, I just
> create a container from the current OS Template and then run those scripts
> within... as they basically just download the latest packages for
> everything, install them in a temporary directory, make a few minor changes
> to the install tree... and then tar.xz it up.
>
> I did make an attempt to build a Debian 8 OS Template because someone
> requested one in IRC prior to the release of the beta and later official OS
> Template by the OpenVZ Project.  Unfortunately I didn't include the little
> build script I cooked up for that within it like I do with the Fedora
> ones... and that was an oversight on my part.  It was basically the same
> thing though only substituting the apt-get commands for the yum/dnf ones.
> I'd love to be more helpful... but I'm not that advanced of a Debian user.
> :(
>
> Hopefully that's enough to get you started.
>
> How does the newer vztt OS Template build system do what it does?  I don't
> know yet... but I'm guessing there is no magic... that it uses the native
> packaging tools... downloads a minimal set of packages from a distro's
> official repos... extracts them to a temporary directory... does some
> rudimentary clean up and optimization (turning off undesired /
> unworking-in-a-container services, etc)... and then just tar.gz's it up.
> It probably put some effort into abstracting how to specify repo URLs and
> package lists... but other than that... that fancy stuff is just icing.
>
> TYL,
> --
> Scott Dowdle
> 704 Church Street
> Belgrade, MT 59714
> (406)388-0827 [home]
> (406)994-3931 [work]
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>
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