The nova.virt.libvirt.storage.rbd_utils Module

class RADOSClient(driver, pool=None)

Bases: object

Context manager to simplify error handling for connecting to ceph.

features

class RBDDriver(pool, ceph_conf, rbd_user)

Bases: object

ceph_args()

List of command line parameters to be passed to ceph commands to reflect RBDDriver configuration such as RBD user name and location of ceph.conf.

cleanup_volumes(instance)

clone(image_location, dest_name)

create_snap(volume, name)

Create a snapshot on an RBD object.

Volume:Name of RBD object Name:Name of snapshot

exists(name, pool=None, snapshot=None)

get_mon_addrs()

get_pool_info()

import_image(base, name)

Import RBD volume from image file.

Uses the command line import instead of librbd since rbd import command detects zeroes to preserve sparseness in the image.

Base:Path to image file Name:Name of RBD volume

is_cloneable(image_location, image_meta)

parse_url(url)

remove_image(name)

Remove RBD volume

Name:Name of RBD volume

remove_snap(volume, name, ignore_errors=False)

Remove a snapshot from an RBD volume.

Volume:Name of RBD object Name:Name of snapshot Ignore_errors:whether or not to log warnings on failures

resize(name, size)

Resize RBD volume.

Name:Name of RBD object Size:New size in bytes

rollback_to_snap(volume, name)

Revert an RBD volume to its contents at a snapshot.

Volume:Name of RBD object Name:Name of snapshot

size(name)

class RBDVolumeProxy(driver, name, pool=None, snapshot=None, read_only=False)

Bases: object

Context manager for dealing with an existing rbd volume.

This handles connecting to rados and opening an ioctx automatically, and otherwise acts like a librbd Image object.

The underlying librados client and ioctx can be accessed as the attributes ‘client’ and ‘ioctx’.