Actually, I think I see what you mean here, I have a custom fact mid write
which looks like this:
Facter.add(:nagios_hostgroups) do
setcode do
if FileTest.exists?("/var/lib/puppet/classes.txt")
nagios_hostgroups = ""
File.open("/var/lib/puppet/classes.txt") { |file|
file.each { |line|
if line =~ /(\S+)::nagios_client/
nagios_hostgroups << $1 + " "
end
}
}
next nagios_hostgroups if nagios_hostgroups
end
nil
end
end
So once finished this fact will return a list of all class names which are
included with the "nagios_client" namespace. So there's actually hopefully
nothing else to do at all here, no temp files or anything, it just requires
a naming convention in the modules to be followed.
On 8 June 2011 15:00, Brian Gallew <g...@gallew.org> wrote:
> I solved this in a similar manner. I wrote a custom fact (which
> essentially returned /var/lib/puppet/state/classes.txt) and then a custom
> function that generated a list of hostgroups based on that.
>
> On Wed, Jun 8, 2011 at 6:47 AM, Chris Phillips <ch...@untrepid.com> wrote:
>
>>
>>
>> On 8 June 2011 13:30, Martijn Grendelman <mart...@iphion.nl> wrote:
>>
>>> Hi,
>>>
>>> > i want to archive the following:
>>> >
>>> > i define an exported ressource for HostX to be monitored in nagios:
>>> >
>>> > @@nagios_host { $fqdn:
>>> > ensure => present,
>>> > alias => $hostname,
>>> > address => $ipadress,
>>> > use => "generic-host",
>>> > hostgroups => ubuntu,
>>> > target => $icingahostfile,
>>> > }
>>> >
>>> > That fine and works as expected and HostX is in hostgroup ubuntu.
>>> > HostX has included a class ssh which installs the ssh services and
>>> > configures them. Inside this class i want to define that HostX is also
>>> in
>>> > hostgroup ssh-server.
>>> > And another class, which puts the node in another environment => there
>>> i
>>> > want to define, that HostX is in hostgroup testing-server and so on.
>>> > How do i archive that? How must the definition inside all these classes
>>> > look like?
>>>
>>> That's a lot more difficult than you might expect.
>>>
>>> I recently solved it, by collecting all the necessary hostgroups for a
>>> host in a file using 'concat', and creating a custom fact (hostgroups)
>>> that joins all the lines in the hostgroups-file together, for use with
>>> nagios_host's hostgroups parameter.
>>>
>>> The biggest drawback is that it takes two puppet runs on the target
>>> (first
>>> one for populating the hostgroups-file, so that the custom fact is set
>>> properly on the second run) before the nagios server can collect the
>>> exported hosts, so it takes a while.
>>>
>>>
>> Well that's mad... I literally just was about to ask the exact same
>> question after a month of wondering...
>>
>> so where do you put this fact? Sounds like it is on the nagios "client"
>> side, which makes sense in terms of pulling it out, but how does it get in
>> there in the first place? Can you show how this file on each client is
>> managed? That seems to be the only bit I'm not clear on. Are you just
>> putting in a single word for each class? Are you at all able to manage the
>> class being removed from the client? Would you need to routinely purge the
>> file? have a initial stage class that wipes the file?
>>
>> Thanks
>>
>> Chris
>>
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