openstack-manuals/doc/config-reference/source/tables/cinder-images.rst

Description of images configuration options

Configuration option = Default value	Description
[DEFAULT]
allowed_direct_url_schemes =	(List) A list of url schemes that can be downloaded directly via the direct_url. Currently supported schemes: [file].
glance_api_insecure = False	(Boolean) Allow to perform insecure SSL (https) requests to glance (https will be used but cert validation will not be performed).
glance_api_servers = None	(List) A list of the URLs of glance API servers available to cinder ([http[s]://][hostname|ip]:port). If protocol is not specified it defaults to http.
glance_api_ssl_compression = False	(Boolean) Enables or disables negotiation of SSL layer compression. In some cases disabling compression can improve data throughput, such as when high network bandwidth is available and you use compressed image formats like qcow2.
glance_api_version = 1	(Integer) Version of the glance API to use
glance_ca_certificates_file = None	(String) Location of ca certificates file to use for glance client requests.
glance_catalog_info = image:glance:publicURL	(String) Info to match when looking for glance in the service catalog. Format is: separated values of the form: <service_type>:<service_name>:<endpoint_type> - Only used if glance_api_servers are not provided.
glance_core_properties = checksum, container_format, disk_format, image_name, image_id, min_disk, min_ram, name, size	(List) Default core properties of image
glance_num_retries = 0	(Integer) Number retries when downloading an image from glance
glance_request_timeout = None	(Integer) 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	(String) Directory used for temporary storage during image conversion
image_upload_use_cinder_backend = False	(Boolean) If set to True, upload-to-image in raw format will create a cloned volume and register its location to the image service, instead of uploading the volume content. The cinder backend and locations support must be enabled in the image service, and glance_api_version must be set to 2.
image_upload_use_internal_tenant = False	(Boolean) If set to True, the image volume created by upload-to-image will be placed in the internal tenant. Otherwise, the image volume is created in the current context's tenant.
image_volume_cache_enabled = False	(Boolean) Enable the image volume cache for this backend.
image_volume_cache_max_count = 0	(Integer) Max number of entries allowed in the image volume cache. 0 => unlimited.
image_volume_cache_max_size_gb = 0	(Integer) Max size of the image volume cache for this backend in GB. 0 => unlimited.
use_multipath_for_image_xfer = False	(Boolean) Do we attach/detach volumes in cinder using multipath for volume to image and image to volume transfers?