Description of configuration options for images

Configuration option=Default value	Description
allowed_direct_url_schemes=	(ListOpt) A list of url schemes that can be downloaded directly via the direct_url. Currently supported schemes: [file].
glance_api_insecure=False	(BoolOpt) Allow to perform insecure SSL (https) requests to glance
glance_api_servers=$glance_host:$glance_port	(ListOpt) A list of the glance api servers available to cinder ([hostname|ip]:port)
glance_api_ssl_compression=False	(BoolOpt) Whether to attempt to negotiate SSL layer compression when using SSL (https) requests. Set to False to disable SSL layer compression. In some cases disabling this may improve data throughput, eg when high network bandwidth is available and you are using already compressed image formats such as qcow2 .
glance_api_version=1	(IntOpt) Version of the glance api to use
glance_host=$my_ip	(StrOpt) default glance hostname or ip
glance_num_retries=0	(IntOpt) Number retries when downloading an image from glance
glance_port=9292	(IntOpt) default glance port
glance_request_timeout=None	(IntOpt) http/https timeout value for glance operations. If no value (None) is supplied here, the glanceclient default value is used.
image_conversion_dir=$state_path/conversion	(StrOpt) Directory used for temporary storage during image conversion
instance_format=[instance: %(uuid)s]	(StrOpt) If an instance is passed with the log message, format it like this
instance_uuid_format=[instance: %(uuid)s]	(StrOpt) If an instance UUID is passed with the log message, format it like this
use_multipath_for_image_xfer=False	(BoolOpt) Do we attach/detach volumes in cinder using multipath for volume to image and image to volume transfers?