Call Puppet function from Puppet template

Puppet node inheritance is not the same as inheritance in most other programming languages . Included classes are evaluated immediatelly when the child is evaluated. And the parent node is evaluated after that. Therefore my example will never work. If you want to know recommended solution for this, read puppet - common misconceptions. I did it this way and it works.

Although I have to admit that I'm pretty disappointed right now, because complex puppet syntax might be confusing for starters.

You can't get the resource name (it seems), but you can get the class. For example:

class bootstrap-raid {
    file {
        "/tmp/bootstrap-raid.sh":
        content => template("/root/bootstrap.sh.erb"),
    }
}
class bootstrap-noraid {
    file {
        "/tmp/bootstrap-noraid.sh":
        content => template("/root/bootstrap.sh.erb"),
    }
}

And for the template:

<% if name == "bootstrap-raid" %>
-r yes \
<% else %> 
-r no \
<% end %>

There's also title available, which usually means the same thing (at least, I never saw them differ).