Puppet users - Dec 2011 - Using an array to manage a string of directories that need to be managed

I''ve read previous posts about iterating over arrays, hashes, etc.

I have a series of directories that need to be created (and
maintained, with appropriate permissions) that serve as NFS mount
points on a series of systems.    Sometimes, when they are no longer
needed, they will be removed (another issue).

I thought I could just create a simple array and then use a file {}
statement to ensure they are created.   Seems simple enough.  Some
don''t feel that''s the most efficient way.

Since I''m going to be using autofs to ensure the mounts exist, I
suppose I could craft a template which could make use of this array
and then ship out the autofs configuration to each system, as a
dependency.

Might someone offer advice on how to best handle this one.


Thanks!

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Hi,

On 12/13/2011 11:25 PM, Forrie wrote:
> I thought I could just create a simple array and then use a file {}
> statement to ensure they are created.   Seems simple enough.  Some
> don''t feel that''s the most efficient way.
> 
> Since I''m going to be using autofs to ensure the mounts exist, I
> suppose I could craft a template which could make use of this array
> and then ship out the autofs configuration to each system, as a
> dependency.
this sounds pretty good to me.

Cheers,
Felix

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On 12/16/2011 08:07 AM, Alexandre wrote:
> Hi,
> If you find out how to do some kind of foreach() to iterate over a
> Puppet array, that''s something i would to know
Hi,

there''s not really a foreach. Instead you define a type and make an
instance of that for each array element.

$users = [ "john", "joe", "horst" ]

define user_with_repo() {
  user { $name: ... }
  vcsrepo { "repo-for-$name": ... }
}

# this is the "foreach":
users_with_repo { $users: }

Of course, this is harder if you need to supply individual data for each
user, e.g. an SSH key.
You would probably build a hash like $users = { name => key, ... },
and to create resources from that you need the create_resources
function, see
http://docs.puppetlabs.com/references/stable/function.html#createresources

HTH,
Felix
> On 14 déc, 13:35, Felix Frank <felix.fr...@alumni.tu-berlin.de>
wrote:
>> Hi,
>>
>> On 12/13/2011 11:25 PM, Forrie wrote:
>>
>>> I thought I could just create a simple array and then use a file {}
>>> statement to ensure they are created.   Seems simple enough.  Some
>>> don''t feel that''s the most efficient way.
>>
>>> Since I''m going to be using autofs to ensure the mounts
exist, I
>>> suppose I could craft a template which could make use of this array
>>> and then ship out the autofs configuration to each system, as a
>>> dependency.
>>
>> this sounds pretty good to me.
>>
>> Cheers,
>> Felix
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