Support boolean inputs for SoftwareConfig's

Adds support for using input/output booleans when creating
SoftwareConfigs. This is useful because some of the software
config hooks that prefer explicit boolean types for input's.
Using Puppet with Hiera to map inputs directly to class parameters
is an example that would benefit from this capability.

Change-Id: Ic80f35fb259e60429d5a65a1b0bc7ff9f2a3ea0a
Closes-bug: #1482223

heat/engine/resources/openstack/heat/software_config.py

@@ -81,7 +81,7 @@ class SoftwareConfig(resource.Resource):
             _('Type of the value of the input.'),
             default='String',
             constraints=[constraints.AllowedValues((
-                'String', 'Number', 'CommaDelimitedList', 'Json'))]
+                'String', 'Number', 'CommaDelimitedList', 'Json', 'Boolean'))]
         ),
         DEFAULT: properties.Schema(
             properties.Schema.STRING,
@@ -104,7 +104,7 @@ class SoftwareConfig(resource.Resource):
             _('Type of the value of the output.'),
             default='String',
             constraints=[constraints.AllowedValues((
-                'String', 'Number', 'CommaDelimitedList', 'Json'))]
+                'String', 'Number', 'CommaDelimitedList', 'Json', 'Boolean'))]
         ),
         ERROR_OUTPUT: properties.Schema(
             properties.Schema.BOOLEAN,

heat/tests/engine/test_software_config.py

@@ -32,6 +32,41 @@ from heat.tests import common
 from heat.tests.engine import tools
 from heat.tests import utils
 
+software_config_inputs = '''
+heat_template_version: 2013-05-23
+description: Validate software config input/output types
+
+resources:
+
+  InputOutputTestConfig:
+    type: OS::Heat::SoftwareConfig
+    properties:
+      group: puppet
+      inputs:
+      - name: boolean_input
+        type: Boolean
+      - name: json_input
+        type: Json
+      - name: number_input
+        type: Number
+      - name: string_input
+        type: String
+      - name: comma_delimited_list_input
+        type: CommaDelimitedList
+      outputs:
+      - name: boolean_output
+        type: Boolean
+      - name: json_output
+        type: Json
+      - name: number_output
+        type: Number
+      - name: string_output
+        type: String
+      - name: comma_delimited_list_output
+        type: CommaDelimitedList
+
+'''
+
 
 class SoftwareConfigServiceTest(common.HeatTestCase):
 
@@ -108,6 +143,15 @@ class SoftwareConfigServiceTest(common.HeatTestCase):
                                self.ctx, config_id)
         self.assertEqual(exception.NotFound, ex.exc_info[0])
 
+    def test_boolean_inputs_valid(self):
+        stack_name = 'test_boolean_inputs_valid'
+        t = template_format.parse(software_config_inputs)
+        stack = utils.parse_stack(t, stack_name=stack_name)
+        try:
+            stack.validate()
+        except exception.StackValidationFailed as exc:
+            self.fail("Validation should have passed: %s" % six.text_type(exc))
+
     def _create_software_deployment(self, config_id=None, input_values=None,
                                     action='INIT',
                                     status='COMPLETE', status_reason='',