The glance_store.driver Module¶

Base class for all storage backends

class glance_store.driver.Store(conf)¶

Bases: glance_store.capabilities.StoreCapability

OPTIONS = None¶

READ_CHUNKSIZE = 4194304¶

WRITE_CHUNKSIZE = 4194304¶

add(store, *args, **kwargs)¶

configure(re_raise_bsc=False)¶

Configure the store to use the stored configuration options and initialize capabilities based on current configuration.

Any store that needs special configuration should implement this method.

configure_add()¶

This is like configure except that it’s specifically for configuring the store to accept objects.

If the store was not able to successfully configure itself, it should raise exceptions.BadStoreConfiguration.

delete(store, *args, **kwargs)¶

get(store, *args, **kwargs)¶

get_schemes()¶

Returns a tuple of schemes which this store can handle.

get_size(location, context=None)¶

Takes a glance_store.location.Location object that indicates where to find the image file, and returns the size

Parameters:	location – glance_store.location.Location object, supplied from glance_store.location.get_location_from_uri()
Raises:	glance_store.exceptions.NotFound if image does not exist

get_store_location_class()¶

Returns the store location class that is used by this store.

set_acls(location, public=False, read_tenants=None, write_tenants=None, context=None)¶

Sets the read and write access control list for an image in the backend store.

Parameters:	location – glance_store.location.Location object, supplied from glance_store.location.get_location_from_uri() public – A boolean indicating whether the image should be public. read_tenants – A list of tenant strings which should be granted read access for an image. write_tenants – A list of tenant strings which should be granted write access for an image.