Create connection class

implementation/utils/connection.py

+import openstack
+from keystoneauth1.identity import v3
+from keystoneauth1 import session
+
+
+class OpenStackConnection(object):
+    """Class for handling the connection to the OpenStack Manager.
+        It creates a connection member variable which holds the connection.
+        The connection only connects when something called in it."""
+
+    def __init__(self, auth):
+        super(OpenStackConnection, self).__init__()
+        self.openstack = openstack.connect(auth_url=auth["auth_url"],
+                                           username=auth["username"],
+                                           password=auth["password"],
+                                           project_id=auth["project_id"],
+                                           project_name=auth["project_name"],
+                                           region_name=auth["region_name"]
+                                           )
+        client_auth = v3.Password(auth_url=auth["auth_url"],
+                                  username=auth["username"],
+                                  password=auth["password"],
+                                  user_domain_id=auth["user_domain_id"],
+                                  project_id=auth["project_id"],)
+
+        self.client_session = session.Session(auth=client_auth)