re-work 'ephemeral_disk' and location of builtin config

Previously we had this 'ephemeral_disk' entry in the datasource config
for Azure, and then we also copied some entries into the .cfg
for that datasource from the datasource config.

Ie, datasource['Azure']['disk_setup'] would be oddly copied
into the .cfg object that was returned by 'get_config_obj'

Now, instead, we have a BUILTIN_CLOUD_CONFIG, which has those same
values in it.

The other change here is that 'ephemeral_disk' now has no meaning.
Instead, we add a populated-by-default entry 'disk_aliases' to the
BUILTIN_DS_CFG, and then just return entries in it  for 
'device_name_to_device'

0 files changed, 0 insertions, 0 deletions