Description of configuration options for scality

Configuration option=Default value	Description
scality_sofs_config=None	(StrOpt) Path or URL to Scality SOFS configuration file
scality_sofs_mount_point=$state_path/scality	(StrOpt) Base dir where Scality SOFS shall be mounted
scality_sofs_volume_dir=cinder/volumes	(StrOpt) Path from Scality SOFS root to volume dir