Puppet users - Feb 2011 - Migrating from 0.25.4 to 2.6

Hi all,

As part of a new project, we''re thinking about moving from CentOS to
Debian.

One of the few concerns I have about doing this is that we currently run
Puppet 0.25.4 on all our systems, yet the available versions for Debian
appear to be 0.24.5 or 2.6.2 (backports).

If I keep my puppetmaster at 0.25.4, will the 2.6.2 clients be able to
talk to it? If not, can I install a puppetmaster running 2.6.2 and have
the 0.25.4 clients talk to that instead?

I''m also wondering what impact the move would have on our puppet
manifests.  Are there any "gotcha''s" that I need to be aware
of that
could prevent my current manifests working under 2.6.2 or 0.24.5?

Please understand that at the moment, I''m not interested in using the
shiny new features of 2.6.2, I''m just thinking that as a
''future-proofing'' exercise, it might be worth move to that now
instead
of waiting for the next stable release of Debian.

Thanks in advance,

Matt

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On Thu, Feb 3, 2011 at 2:39 AM, Matthew Macdonald-Wallace
<lists@truthisfreedom.org.uk> wrote:
> I''m also wondering what impact the move would have on our puppet
> manifests.  Are there any "gotcha''s" that I need to be
aware of that
> could prevent my current manifests working under 2.6.2 or 0.24.5?
I personally have been bitten running 0.24.x when the mysql module I
included used regexes (introduced in 0.25.x).

http://docs.puppetlabs.com/guides/language_tutorial.html

The "Language Feature by Release" should give you a good idea of other
things missing in 0.24.x that your 0.25.x manifests need.  I haven''t
used 2.6, so I can''t speak to any forward migration issues.

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OK, thanks, that answers the question about whether we can go
backwards (we can''t, we''re using Regexes and a few other
things!)

Anyone know if a Puppet 2.6.2 client can talk to a 0.25.4 puppet master?

M.

On 3 February 2011 15:18, Adam Heinz <amh@metricwise.net>
wrote:
> On Thu, Feb 3, 2011 at 2:39 AM, Matthew Macdonald-Wallace
> <lists@truthisfreedom.org.uk> wrote:
>> I''m also wondering what impact the move would have on our
puppet
>> manifests.  Are there any "gotcha''s" that I need to
be aware of that
>> could prevent my current manifests working under 2.6.2 or 0.24.5?
>
> I personally have been bitten running 0.24.x when the mysql module I
> included used regexes (introduced in 0.25.x).
>
> http://docs.puppetlabs.com/guides/language_tutorial.html
>
> The "Language Feature by Release" should give you a good idea of
other
> things missing in 0.24.x that your 0.25.x manifests need.  I
haven''t
> used 2.6, so I can''t speak to any forward migration issues.
>
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>
>
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On 02/03/2011 04:46 PM, Matthew Macdonald-Wallace wrote:
> OK, thanks, that answers the question about whether we can go
> backwards (we can''t, we''re using Regexes and a few other
things!)
> 
> Anyone know if a Puppet 2.6.2 client can talk to a 0.25.4 puppet master?
Newer masters will entertain older clients.

Do *not* use 0.24.x under any circumstances.

Rolling 0.25.4 (or, while you''re at it, 0.25.5) packages for debian is
rather straight-forward. If you can spare a couple hours, you may find
this to be the least painful road.

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On Thu, Feb 3, 2011 at 7:53 AM, Felix Frank
<felix.frank@alumni.tu-berlin.de> wrote:
> On 02/03/2011 04:46 PM, Matthew Macdonald-Wallace wrote:
>> OK, thanks, that answers the question about whether we can go
>> backwards (we can''t, we''re using Regexes and a few
other things!)
>>
>> Anyone know if a Puppet 2.6.2 client can talk to a 0.25.4 puppet
master?
>
> Newer masters will entertain older clients.
>
> Do *not* use 0.24.x under any circumstances.
>
> Rolling 0.25.4 (or, while you''re at it, 0.25.5) packages for
debian is
> rather straight-forward. If you can spare a couple hours, you may find
> this to be the least painful road.
Yep. If you get the debian repo from here:

git://git.debian.org/git/pkg-puppet/puppet.git

and you''ve worked with git-buildpackage before, it''s
relatively easy
to get it built.

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