Hello,
They are duplicate resources because Puppet (on the server) parses the
manifests and adds all resources found to a catalog that is sent to the client,
which uses this catalog to update the configuration.
The catalog cannot have duplicate resources.
I know of 3 basic methods to alter the contents of a file with Puppet: augeas,
file_line and concat. Augeas is quite powerful, and maybe not best suited for
this specific task. file_line is part of the puppetlabs-stdlibs module you most
likely already have installed and concat is in a separate puppetlabs-concat
module.
Untested, but with file_line I would do something like this:
joesfriends = jack, sam, sally
$joesfriends.each | String $joesfriend | {
file_line { $joesfriend:
ensure => present,
path => '/etc/list_of_joes_friends',
line => 'whatever you want',
}
}
This assumes the file /etc/list_of_joes_friends is already present.
-----Original message-----
From: buoyant_puppy <fred.oris...@gmail.com>
Sent: Thursday 6th July 2017 23:45
To: Puppet Users <puppet-users@googlegroups.com>
Subject: [Puppet Users] Avoiding duplicate declaration in a loop?
Excuse my newbieness, but I'm having a basic misunderstanding regarding loops.
Say I have: joesfriends = jack, sam, sally
I need to add each entry into a file - one per line.
$joesfriends.each | String $joesfriends| { # loop
file { "/etc/list_of_joes_friends":
line => "${joesfriends}"
}
}
This fails on a duplicate declaration error....but how can there not be a
duplicate, it's a loop? The examples in the docs avoid this particular
situation by using the var in the filename, but that's not usually going to be
an option.
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