On 16/10/12 11:42, Dominic Cleal wrote:
> On 15/10/12 16:52, Eugene Vilensky wrote:
>>
>> On Oct 14, 2012, at 12:40 PM, Dominic Cleal <dcl...@redhat.com
>> <mailto:dcl...@redhat.com>> wrote:
>>
>>> You're missing quotes around "nrpe", the command should be:
>>>
>>> set /files/etc/hosts.allow/*[process='nrpe']/client[last()+1] 1.1.1.1
>>>
>>> rodjek's example has the quotes in, so just a transcription error.
>>
>>
>> Totally works for an existing 'nrpe' node (thanks!) but not if it does
>> not exist. I don't suppose there is a simple "create onlyif not exists"
>> expression? (http://augeas.net/page/Path_expressions)
>
> The best way to do this currently is two separate resources, splitting
> out the responsibilities so that one adds "nrpe" and the client
> "1.1.1.1" if the process isn't there already. The second, if you need
> it, will run if "nrpe" is already listed but the client "1.1.1.1" isn't.
Sorry, that wasn't a great example. I'd set context but not used it.
$process = "nrpe"
$client = "1.1.1.1"
# Responsible for adding nrpe if it isn't there
augeas { "process-${process}":
context => "/files/etc/hosts.allow",
changes => [
"set 01/process ${process}",
"set 01/client[.='${client}'] ${client}",
],
onlyif => "match *[process='${process}'] size == 0",
}
# Responsible for updating existing nrpe entries missing the client
augeas { "process-${process}-client":
context => "/files/etc/hosts.allow",
changes => "set *[process='${process}']/client[.='${client}'] ${client}",
require => Augeas["process-${process}"],
}
--
Dominic Cleal
Red Hat Consulting
m: +44 (0)7817 878113
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