Comment 7 for bug 1527302

Lets create a task upload_file in pre deployment, in the same way we do tasks for repos creation, and the content of the file will be [0] common attributes. Master tasks should be run with special environment variable which is set to the path where this yaml is placed.

[0] https://github.com/openstack/fuel-web/blob/26c78e1c2913b8ca194126ca38161ff9593daef4/nailgun/nailgun/orchestrator/deployment_serializers.py#L108