adding Swisscloud content metadata

otc_metadata/__init__.py

@@ -0,0 +1,35 @@
+# 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.
+__all__ = ['__version__', 'Docs']
+
+import pbr.version
+
+from otc_metadata.services import Services  # flake8: noqa
+
+__version__ = pbr.version.VersionInfo('otc-metadata').version_string()
+_service_manager = None
+
+
+def get_service_data(*args, **kwargs):
+    """Return singleton instance of the Services object.
+    Parameters are all passed through to the
+    :class:`~otc_metadata.services.Services` constructor.
+    .. note::
+      Only one singleton is kept, so if instances with different parameter
+      values are desired, directly calling the constructor is necessary.
+    :returns: Singleton instance of
+        :class:`~otc_metadata.services.Services`
+    """
+    global _service_manager
+    if not _service_manager:
+        _service_manager = Services(*args, **kwargs)
+    return _service_manager