Puppet users - Dec 2010 - Puppet updating from relative directories or chroot

Anyone had any experience getting puppet to update multiple OS''s on a
single server?
For example, for a set of blades Network booting from a primary
server, the OS for each blade would be stored on the primary server.
For example:
/pxe/host1/<normal OS directory structure>
/pxe/host2/<normal OS directory structure>
.....
/pxe/hostn/<normal OS directory structure>

Can puppet be run in a mode that would take into account relative
directories. i.e. instead of being / (root) based, it would be /pxe/
hostn/ based?
I''ve tried the chroot approach previously (about 2 years ago) but had
a nightmare with Ruby libraries.

Cheers,

Geoff.

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Bump!

On Dec 3, 11:41 am, Geoff <geoffnew...@gmail.com>
wrote:
> Anyone had any experience getting puppet to update multiple OS''s
on a
> single server?
> For example, for a set of blades Network booting from a primary
> server, the OS for each blade would be stored on the primary server.
> For example:
> /pxe/host1/<normal OS directory structure>
> /pxe/host2/<normal OS directory structure>
> .....
> /pxe/hostn/<normal OS directory structure>
>
> Can puppet be run in a mode that would take into account relative
> directories. i.e. instead of being / (root) based, it would be /pxe/
> hostn/ based?
> I''ve tried the chroot approach previously (about 2 years ago) but
had
> a nightmare with Ruby libraries.
>
> Cheers,
>
> Geoff.
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On Fri, Dec 3, 2010 at 22:41, Geoff <geoffnewell@gmail.com> wrote:
> Anyone had any experience getting puppet to update multiple OS''s
on a
> single server?
Not without a "container" style virtualization solution wrapped around
it.

[...]
> Can puppet be run in a mode that would take into account relative
> directories. i.e. instead of being / (root) based, it would be /pxe/
> hostn/ based?
Nope.

I didn''t respond earlier, as I imagine most people didn''t,
because we
hoped someone would actually come along and have some experience that
could help you out here.  Even if they don''t, though, posting a new
message with "bump" in the content doesn''t work like a web
forum - it
just sends out a new message with that one line in it to everyone
subscribed.  I had to dig back through the archives to see what you
were having trouble with so I could respond.

Regards,
    Daniel
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On Mon, Dec 13, 2010 at 2:39 PM, Daniel Pittman <daniel@rimspace.net>
wrote:
> On Fri, Dec 3, 2010 at 22:41, Geoff <geoffnewell@gmail.com> wrote:
>
> > Anyone had any experience getting puppet to update multiple
OS''s on a
> > single server?
>
> Not without a "container" style virtualization solution wrapped
around it.
>
> [...]
>
> > Can puppet be run in a mode that would take into account relative
> > directories. i.e. instead of being / (root) based, it would be /pxe/
> > hostn/ based?
>
> Nope.
>
> I didn''t respond earlier, as I imagine most people
didn''t, because we
> hoped someone would actually come along and have some experience that
> could help you out here.  Even if they don''t, though, posting a
new
> message with "bump" in the content doesn''t work like a
web forum - it
> just sends out a new message with that one line in it to everyone
> subscribed.  I had to dig back through the archives to see what you
> were having trouble with so I could respond.
>
I was able to see the whole question because he either replied to himself or
because he copied and pasted.  Could your email client be hiding quoted
text?

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On Tue, Dec 14, 2010 at 10:15, Patrick Mohr <kc7zzv@gmail.com>
wrote:
> On Mon, Dec 13, 2010 at 2:39 PM, Daniel Pittman <daniel@rimspace.net>
wrote:
>> On Fri, Dec 3, 2010 at 22:41, Geoff <geoffnewell@gmail.com>
wrote:
>> I didn''t respond earlier, as I imagine most people
didn''t, because we
>> hoped someone would actually come along and have some experience that
>> could help you out here.  Even if they don''t, though, posting
a new
>> message with "bump" in the content doesn''t work like
a web forum - it
>> just sends out a new message with that one line in it to everyone
>> subscribed.  I had to dig back through the archives to see what you
>> were having trouble with so I could respond.
>
> I was able to see the whole question because he either replied to himself
or
> because he copied and pasted.  Could your email client be hiding quoted
> text?
Oh, the embarrassment.  Um, yes, he did, and it did.  *ahem*  Thanks.

Daniel

Pass me that brown paper bag.
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On Dec 13, 6:02 am, Geoff <geoffnew...@gmail.com>
wrote:
> On Dec 3, 11:41 am, Geoff <geoffnew...@gmail.com> wrote:
> > Anyone had any experience getting puppet to update multiple
OS''s on a
> > single server?
Like Daniel said, I think the resounding silence that greeted your
initial query should be interpreted as a group "No."
> > For example, for a set of blades Network booting from a primary
> > server, the OS for each blade would be stored on the primary server.
> > For example:
> > /pxe/host1/<normal OS directory structure>
> > /pxe/host2/<normal OS directory structure>
> > .....
> > /pxe/hostn/<normal OS directory structure>
>
> > Can puppet be run in a mode that would take into account relative
> > directories. i.e. instead of being / (root) based, it would be /pxe/
> > hostn/ based?
> > I''ve tried the chroot approach previously (about 2 years ago)
but had
> > a nightmare with Ruby libraries.
If each /pxe/hostn/ contains a full OS image including Puppet, Facter,
and all their dependencies, then you should be able chroot to them and
launch puppet[d] within.  (Actually, there are a few other details you
might need to provide, such as certain working device nodes in /dev
and proc mounted inside, but these are general chroot issues.)  You
could probably use environments or custom facts to associate the
desired configuration with each image, despite all the requests coming
from the same physical client.

If you do this, you will likely find that
1) Some things Puppet can do are inappropriate for your desired usage
model.  For example,
1a) You can ensure that services are enabled, but not that they are
running
1b) You can configure mount points definitions, but you should not
ensure them mounted (because they would be mounted on the image, if at
all)

2) Some things simply won''t work, or won''t work correctly.
Especially, unless you hack up Facter something fierce, some facts
presented to the Puppetmaster will reflect the system running Facter/
Puppet rather than the systems on which you intend to load the images.

3) Some things are heavier-weight than you are looking for.  For
example, if you plan to install software within chroot via Puppet,
then in addition to Puppet and all its dependencies, you will also
need in each image a copy of the relevant package manager and its
local database.


Overall, it sounds like a clever idea on the surface, but the details
are likely to kill you.


John

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On 12/14/2010 12:19 AM, Daniel Pittman wrote:
> On Tue, Dec 14, 2010 at 10:15, Patrick Mohr <kc7zzv@gmail.com> wrote:
>> On Mon, Dec 13, 2010 at 2:39 PM, Daniel Pittman
<daniel@rimspace.net> wrote:
>>> On Fri, Dec 3, 2010 at 22:41, Geoff <geoffnewell@gmail.com>
wrote:
> 
>>> I didn''t respond earlier, as I imagine most people
didn''t, because we
>>> hoped someone would actually come along and have some experience
that
>>> could help you out here.  Even if they don''t, though,
posting a new
>>> message with "bump" in the content doesn''t work
like a web forum - it
>>> just sends out a new message with that one line in it to everyone
>>> subscribed.  I had to dig back through the archives to see what you
>>> were having trouble with so I could respond.
>>
>> I was able to see the whole question because he either replied to
himself or
>> because he copied and pasted.  Could your email client be hiding quoted
>> text?
> 
> Oh, the embarrassment.  Um, yes, he did, and it did.  *ahem*  Thanks.
Muphry''s Law. Hardly something to be actually embarrassed about :-)

Cheers,
Felix

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Cheers all.
I suspected it was going to be too hard. Thought no-one had seen the
email as it was sent close to the weekend ;)

On Dec 13, 11:19 pm, Daniel Pittman <dan...@rimspace.net>
wrote:
> On Tue, Dec 14, 2010 at 10:15, Patrick Mohr <kc7...@gmail.com> wrote:
> > On Mon, Dec 13, 2010 at 2:39 PM, Daniel Pittman
<dan...@rimspace.net> wrote:
> >> On Fri, Dec 3, 2010 at 22:41, Geoff <geoffnew...@gmail.com>
wrote:
> >> I didn''t respond earlier, as I imagine most people
didn''t, because we
> >> hoped someone would actually come along and have some experience
that
> >> could help you out here.  Even if they don''t, though,
posting a new
> >> message with "bump" in the content doesn''t work
like a web forum - it
> >> just sends out a new message with that one line in it to everyone
> >> subscribed.  I had to dig back through the archives to see what
you
> >> were having trouble with so I could respond.
>
> > I was able to see the whole question because he either replied to
himself or
> > because he copied and pasted.  Could your email client be hiding
quoted
> > text?
>
> Oh, the embarrassment.  Um, yes, he did, and it did.  *ahem*  Thanks.
>
> Daniel
>
> Pass me that brown paper bag.
> --
> ✣ Daniel Pittman            ✉ dan...@rimspace.net            ☎ +61 401 155
707
>               ♽ made with 100 percent post-consumer electrons
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