When writing puppet code there will be times when you need to see the value of a variable. Inside the debugger you can just type the variable name. The ls command will list all the variables currently set, in the current scope and even an the scope of a evaluated resource.

The scope used during Puppet compilation can be inspected at any time with the ls comamnd.

Use the vars or ls command to show the contents of the current scope.

8:>> ls
"Facts were removed for easier viewing"
 "datacenter"   => "datacenter1",
 "facts"        => "removed by the puppet-debugger",
 "module_name"  => "",
 "name"         => "main",
 "server_facts" => {
  "environment"   => "production",
  "serverip"      => "",
  "servername"    => "MacBook-Pro-162",
  "serverversion" => "6.4.0"
 "title"        => "main",
 "trusted"      => {
  "authenticated" => "local",
  "certname"      => nil,
  "domain"        => nil,
  "extensions"    => {},
  "hostname"      => nil

Parameters inside a resource

Use ls to see the evaulated parameters. Even works when hiera lookups are performed.

Here I defined the foo class with two parameters. Then I used the foo class and passed in a value for $param1 parameter. Running ls then showed the value of $param2 as it was evaluated.

5:>> class foo( $param1, $param2 = "${param1}/bar"){
  6:>> }
7:>> class{'foo': param1 => '/tmp/test' }
 => Puppet::Type::Component {
  loglevel => notice,
      name => "Foo",
     title => "Class[Foo]"
8:>> ls foo
 "Class[Foo]" => {
  "param1" => "/tmp/test",
  "param2" => "/tmp/test/bar"