Angus Lees 6a732052f6 OpenStackProvider: Allow userdata using config_drive
Rackspace public cloud (for example), has a laughably tiny limit on the
size of userdata that can be passed without config-drive.

This change adds `config_drive` (default False) to OpenStackProvider
options and passes it through to nova when creating servers.

Change-Id: I4c07d4119ac3b482d8446de783d67b82ea8bfed8
2015-07-20 14:39:47 +10:00
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