Add a openstack specific datasource

Openstack has a unique derivative datasource that is gaining usage.
Previously the config drive datasource provided part of this functionality
as well as the ec2 datasource, but since new functionality is being added
to openstack's special datasource it seems beneficial to combine the used
parts into a new datasource just made for handling openstack deployments
that use the openstack metadata service (possibly in combination with the
ec2 metadata service).

This patch factors out the common logic shared between the config drive
and the openstack metadata datasource and places that in a shared helper
file and then creates a new openstack datasource that readers from the
openstack metadata service and refactors the config drive datasource to
use this common logic.

1 files changed, 14 insertions, 0 deletions

diff --git a/cloudinit/sources/helpers/__init__.py b/cloudinit/sources/helpers/__init__.py
new file mode 100644
index 00000000..2cf99ec8
--- /dev/null
+++ b/cloudinit/sources/helpers/__init__.py
@@ -0,0 +1,14 @@
+# vi: ts=4 expandtab
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+