What is the puppet way to do if I want to customize run interval of a special module

[Chrislynn Chee]

Hi all, 

I would like to know how puppet admin usually do or structure the modules, if there is a particular module that I do not which it to be applied in catalog in a normal run mode, but to be included at a custom time interval. For example, I have a special module to "sync sqlite file from my server" only in a quarterly basis. I do not want the sync to be happened in the standard puppet run interval. Can I achieve this requirement?

Thank you.   

[José Luis Ledesma]

Hi,

Perhaps the schedule metaparameter is what you need

http://docs.puppetlabs.com/references/latest/metaparameter.html#schedule

Regards

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[Felix Frank]

Hi,

you can do this more or less, by applying a schedule to one or more
resources. The schedule makes sure that the resource is not synced
outside a specific time window. But if there happens to be no agent run
*inside* the window, then no sync will happen at all.

See http://docs.puppetlabs.com/references/latest/type.html#schedule

HTH,
Felix

[Spencer Krum]

I think the 'Puppet' way to do this is to not do it with Puppet at all. Puppet works by inspecting the system and resolving inconsistencies. "Do a thing every quarter" maps poorly to this. The ordering of Puppet also makes it hard to do rigorous error checking and logging.

I would recommend you capture the syncing behaviour in a shell or ruby/python/perl script. Then use Puppet to put this script in place, and to set a cron job to run it at the interval you desire.

Thanks,
Spencer

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[Rich Burroughs]

This is the best answer, in my opinion. Spencer has it totally right. Puppet is not a substitute for scripting languages and cron. Think of it as a way to enforce a desired configuration of a node at any given moment. Things that fall outside of that are probably better candidates for other tools.


Rich

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