Add tempest::config class

Other modules provide an X::config class to be able to specify
parameters that are not yet part of the module. Tempest was missing this
feature. This commit aims to add it for puppet-tempest.

Change-Id: Ib9ebd3569eeb42a1a5b4b2173253264e767d904b

manifests/config.pp

@@ -0,0 +1,30 @@
+# == Class: tempest::config
+#
+# This class is used to manage arbitrary Tempest configurations.
+#
+# === Parameters
+#
+# [*tempest_config*]
+#   (optional) Allow configuration of arbitrary Tempest configurations.
+#   The value is an hash of tempest_config resources. Example:
+#   { 'DEFAULT/foo' => { value => 'fooValue'},
+#     'DEFAULT/bar' => { value => 'barValue'}
+#   }
+#   In yaml format, Example:
+#   tempest_config:
+#     DEFAULT/foo:
+#       value: fooValue
+#     DEFAULT/bar:
+#       value: barValue
+#
+#   NOTE: The configuration MUST NOT be already handled by this module
+#   or Puppet catalog compilation will fail with duplicate resources.
+#
+class tempest::config (
+  $tempest_config        = {},
+) {
+
+  validate_hash($tempest_config)
+
+  create_resources('tempest_config', $tempest_config)
+}

spec/classes/tempest_config_spec.rb

@@ -0,0 +1,20 @@
+require 'spec_helper'
+
+describe 'tempest::config' do
+
+  let :params do
+    { :tempest_config => {
+        'DEFAULT/foo' => { 'value'  => 'fooValue' },
+        'DEFAULT/bar' => { 'value'  => 'barValue' },
+        'DEFAULT/baz' => { 'ensure' => 'absent' }
+      }
+    }
+  end
+
+  it 'configures arbitrary tempest configurations' do
+    is_expected.to contain_tempest_config('DEFAULT/foo').with_value('fooValue')
+    is_expected.to contain_tempest_config('DEFAULT/bar').with_value('barValue')
+    is_expected.to contain_tempest_config('DEFAULT/baz').with_ensure('absent')
+  end
+
+end