Fuel plugin builder accepts 'master' as task role

Schema for all versions was updated to accept also 'master' string as
deployment task role, in addition to previous possible values:
'*' string and array of strings matching '^[0-9a-zA-Z_-]+$' regex.

Closes-bug: #1510354
DocImpact

Change-Id: Iaaf17bf42efb27beda23cf6a46137e380f8569c0

fuel_plugin_builder/tests/test_validator_v3.py

@@ -210,6 +210,17 @@ class TestValidatorV3(BaseValidator):
                     'stage': 'post_deployment',
                     'role': '*'
                 },
+                {
+                    'type': 'puppet',
+                    'parameters': {
+                        'timeout': 3,
+                        'retries': 10,
+                        'puppet_manifest': 'xx',
+                        'puppet_modules': 'xxx'
+                    },
+                    'stage': 'post_deployment',
+                    'role': 'master'
+                },
             ]
         ]
 

fuel_plugin_builder/validators/schemas/base.py

@@ -149,7 +149,7 @@ class BaseSchema(object):
                 'role': {
                     'oneOf': [
                         self.list_of_strings,
-                        {'enum': ['*']}]}}
+                        {'enum': ['*', 'master']}]}}
         }
 
     @property

fuel_plugin_builder/validators/schemas/v2.py

@@ -83,7 +83,7 @@ class SchemaV2(BaseSchema):
                 'role': {
                     'oneOf': [
                         self.list_of_strings,
-                        {'enum': ['*']}]}}
+                        {'enum': ['*', 'master']}]}}
         }
 
     @property

fuel_plugin_builder/validators/schemas/v3.py

@@ -29,7 +29,7 @@ class SchemaV3(SchemaV2):
         return {
             'oneOf': [
                 self.task_group,
-                {'enum': ['*']}
+                {'enum': ['*', 'master']}
             ]
         }