Puppet – How to Concatenate Templates

puppettemplates

In the module I'm currently working on, I got a load of configuration options that need to be set, have default values … and should be fragmented into shorter template files as else it would be a scrolling nightmare.

The recommended way to do so was to use some third party modules. Is there no built in way?

Best Answer

Another possible solution that surprisingly works (and about which I couldn't find any documentation), is the array syntax inside the template() function:

file { "${location}/final-file.php":
    ensure  => file,
    content => template(
        'wppuppet/template.a.erb',
        'wppuppet/template.b.erb',
        'wppuppet/template.c.erb'
    ),
}

Related Solutions

Puppet and templates : how to loop sequently and not randomly

You should be able to use Ruby to sort the values inline to provide consistent results:

"<% property_name.sort_by {|key, value| key}.each do |key, value| -%>"

Iterating over resources in puppet templates

Just in case you still want to know, I figured out how to iterate over resources inside puppet templates without any additional modules. Here's an example where I have a firewall module with a defined rule type (firewall::rule). I want to iterate over all instances of that type in a template, so I use:

<% scope.compiler.catalog.vertices.each do |resource| -%>
 <% if resource.type == "Firewall::Rule" -%> 
  # <%= resource[:comment] %>
 <% end -%> 
<% end -%>

That middle line "resource[:comment]" doesn't work right, I'm still trying to figure that part out. I asked about it on the puppet mailing list so we'll see if they get back to me. For reference, take a look at this post.

Best Answer

Related Solutions

Puppet and templates : how to loop sequently and not randomly

Iterating over resources in puppet templates

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