Add environment_files to stack_create

This change adds support for Heat Stack environment files.

Change-Id: Ie6145aa5fde71d93f1df802f16ae4969df5de929

shade/openstackcloud.py

@@ -794,7 +794,10 @@ class OpenStackCloud(object):
             template_object=None, files=None,
             rollback=True,
             wait=False, timeout=180,
+            environment_files=None,
             **parameters):
+        envfiles, env = template_utils.process_multiple_environments_and_files(
+            env_paths=environment_files)
         tpl_files, template = template_utils.get_template_contents(
             template_file=template_file,
             template_url=template_url,
@@ -805,7 +808,8 @@ class OpenStackCloud(object):
             disable_rollback=not rollback,
             parameters=parameters,
             template=template,
-            files=tpl_files,
+            files=dict(list(tpl_files.items()) + list(envfiles.items())),
+            environment=env,
         )
         with _utils.shade_exceptions("Error creating stack {name}".format(
                 name=name)):

shade/tests/unit/test_stack.py

@@ -120,6 +120,7 @@ class TestStack(base.TestCase):
         mock_heat.stacks.create.assert_called_once_with(
             stack_name='stack_name',
             disable_rollback=False,
+            environment={},
             parameters={},
             template={},
             files={}
@@ -137,6 +138,7 @@ class TestStack(base.TestCase):
         mock_heat.stacks.create.assert_called_once_with(
             stack_name='stack_name',
             disable_rollback=False,
+            environment={},
             parameters={},
             template={},
             files={}