On 2/28/15 1:27 PM, Tom Limoncelli wrote:
> I want to copy a hash to a variable but change some settings along the way.
>
> For example:
>
> I have $haproxy::params::global_options (which is a hash) and I want
> to create a copy with some changes.
>
> I tried this:
> $global_options = $haproxy::params::global_options += {
> 'log' => "${log_ip} local0",
> }
> But that gives me:
> Error: Syntax error at '+='; expected '}' at ...
>
> If I do:
> $global_options = $haproxy::params::global_options
> $global_options['log'] = "${log_ip} local0"
> This gives me:
> Error: Assigning to the hash 'global_options' with an existing key
> 'log' is forbidden
>
> Suggestions?
>
> Tom
>
Hi Tom,
Suggest using a template as it provides a way to hack around issues
involving munging data and types by going straight to ruby. You could
use the inline_template() function, though I prefer having it in a
separate file for readability and for syntax checking.
Here's a quick and dirty hack that might work for you. Notice in the
template that the ruby code is between <% %> and the interpolation that
is being returned to $hn in your manifest is between <%= %>.
manifests/init.pp
class tl (
) {
$h = {
'k' => 'v',
}
$hn = template('tl/hack.erb')
notify { 'asdf':
message => "h = ${h}",
}
notify { "hn = ${hn}":
require => Notify['asdf'],
}
}
# templates/hack.erb
<% ht = {}
ht = @h.merge 'log' => "#{@ipaddress} local0"%>
<%= ht %>
# puppet apply -v tests/init.pp
Notice: h = {"k"=>"v"}
Notice: hn =
{"k"=>"v", "log"=>"10.0.1.3 local0"}
Best regards,
-g
--
Garrett Honeycutt
@learnpuppet
Puppet Training with LearnPuppet.com
Mobile: +1.206.414.8658
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