1 files changed, 68 insertions, 0 deletions
diff --git a/snaps/config/stack.py b/snaps/config/stack.py
new file mode 100644
index 0000000..0655961
--- /dev/null
+++ b/snaps/config/stack.py
@@ -0,0 +1,68 @@
+# Copyright (c) 2017 Cable Television Laboratories, Inc. ("CableLabs")
+#                    and others.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+STACK_DELETE_TIMEOUT = 1200
+STACK_COMPLETE_TIMEOUT = 1200
+POLL_INTERVAL = 3
+STATUS_CREATE_FAILED = 'CREATE_FAILED'
+STATUS_CREATE_COMPLETE = 'CREATE_COMPLETE'
+STATUS_DELETE_COMPLETE = 'DELETE_COMPLETE'
+STATUS_DELETE_FAILED = 'DELETE_FAILED'
+
+
+class StackConfig(object):
+    """
+    Configuration for Heat stack
+    """
+
+    def __init__(self, **kwargs):
+        """
+        Constructor
+        :param name: the stack's name (required)
+        :param template: the heat template in dict() format (required if
+                         template_path attribute is None)
+        :param template_path: the location of the heat template file (required
+                              if template attribute is None)
+        :param env_values: dict() of strings for substitution of template
+                           default values (optional)
+        """
+
+        self.name = kwargs.get('name')
+        self.template = kwargs.get('template')
+        self.template_path = kwargs.get('template_path')
+        self.env_values = kwargs.get('env_values')
+        if 'stack_create_timeout' in kwargs:
+            self.stack_create_timeout = kwargs['stack_create_timeout']
+        else:
+            self.stack_create_timeout = STACK_COMPLETE_TIMEOUT
+
+        if not self.name:
+            raise StackConfigError('name is required')
+
+        if not self.template and not self.template_path:
+            raise StackConfigError('A Heat template is required')
+
+    def __eq__(self, other):
+        return (self.name == other.name and
+                self.template == other.template and
+                self.template_path == other.template_path and
+                self.env_values == other.env_values and
+                self.stack_create_timeout == other.stack_create_timeout)
+
+
+class StackConfigError(Exception):
+    """
+    Exception to be thrown when an stack configuration are incorrect
+    """