Hook before Puppet compiles a catalog (for pulling update from GIT)

[Iakov Gan]

Hi, 

I wonder how i can pull updates from my GIT to puppet server? 

There is already a gitlab-webhook, that works fine and the only problem is that it takes >1 minute to get all environments updated. At the moment in my test lab i have about 20 environments managed by r10k. Update of one env is about 3 seconds, so when i make a change while debugging some puppet module, it is really annoying to wait 1 minute every single time.   

I use foreman, and i can just modify node.rb (external_nodes) to pull r10k update every time it is called (taking into account it is called twice per update of course). Is it the only way?

Regards,

Iakov 

[Garrett Honeycutt]

On 6/7/14, 10:33 PM, Iakov Gan wrote:
> Hi,
>
> I wonder how i can pull updates from my GIT to puppet server?
>
> There is already a gitlab-webhook, that works fine and the only problem
> is that it takes >1 minute to get all environments updated. At the
> moment in my test lab i have about 20 environments managed by
> r10k. Update of one env is about 3 seconds, so when i make a change
> while debugging some puppet module, it is really annoying to wait 1
> minute every single time.
>
> I use foreman, and i can just modify node.rb (external_nodes

> <http://docs.puppetlabs.com/guides/external_nodes.html>) to pull r10k

> update every time it is called (taking into account it is called twice
> per update

> <https://groups.google.com/forum/#!msg/puppet-users/6-MqbV1P2ec/8I1g4Lc0NKsJ> of

> course). Is it the only way?
>
> Regards,
>
> Iakov
>
>
>
>
>

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Iakov,

Perhaps the prerun_command[1] configuration setting might help. It
allows you to run a command before every agent run. I use it to run r10k.

[1] -
http://docs.puppetlabs.com/references/latest/configuration.html#preruncommand

Best regards,
-g

--
Garrett Honeycutt
@learnpuppet
Puppet Training with LearnPuppet.com
Mobile: +1.206.414.8658

[Peter Meier]

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> Perhaps the prerun_command[1] configuration setting might help. It
> allows you to run a command before every agent run. I use it to run
> r10k.
>
> [1] -
> http://docs.puppetlabs.com/references/latest/configuration.html#preruncommand

But
>
this is on the agent side, and not the master.

What I would do to have instant git updates, is updating things based
on a server side git post-update hook (the place where you push the
code). If you do the script in a little intelligent way, you can speed
up that quite good to make it pretty fast.

~pete

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[Iakov Gan]

Thanks for the hint, Peter. 

Looks like prerun_command is very interesting solution. BTW i've just found a puppet module for that[1]. 

But still using prerun_command  it can only pull ALL my environments before each puppet run (= 1min). I can't pull only one particular environment, can i?

I developed a small extension of node.rb, that does what i need: since node.rb knows environment of the node, i can call "r10k deploy environment #{your_env} -p". But the error management is quite difficult since i only can report error by exit code and no error message appears on the node unfortunately.  Any ideas?

 

[1] https://github.com/openSUSE/puppet-r10k 

[Iakov Gan]

Sorry, i mixed up the names. Thank you both Garrett, Peter.