cinder.volume.drivers.sheepdog
Modulecinder.volume.drivers.sheepdog
Module¶SheepDog Volume Driver.
SheepdogClient
(node_list, port)¶Bases: object
Sheepdog command executor.
DOG_RESP_CLUSTER_NOT_FORMATTED
= ‘Cluster status: Waiting for cluster to be formatted’¶DOG_RESP_CLUSTER_RUNNING
= ‘Cluster status: running’¶DOG_RESP_CLUSTER_WAITING
= ‘Cluster status: Waiting for other nodes to join cluster’¶DOG_RESP_CONNECTION_ERROR
= ‘failed to connect to’¶DOG_RESP_SNAPSHOT_EXISTED
= ‘tag (%(snapname)s) is existed’¶DOG_RESP_SNAPSHOT_NOT_FOUND
= ‘: Failed to find requested tag’¶DOG_RESP_SNAPSHOT_VDI_NOT_FOUND
= ‘: No VDI found’¶DOG_RESP_VDI_ALREADY_EXISTS
= ‘: VDI exists already’¶DOG_RESP_VDI_NOT_FOUND
= ‘: No VDI found’¶DOG_RESP_VDI_SHRINK_NOT_SUPPORT
= ‘Shrinking VDIs is not implemented’¶DOG_RESP_VDI_SIZE_TOO_LARGE
= ‘New VDI size is too large’¶QEMU_IMG_RESP_ALREADY_EXISTS
= ‘: VDI exists already’¶QEMU_IMG_RESP_CONNECTION_ERROR
= ‘Failed to connect socket: Connection refused’¶QEMU_IMG_RESP_SIZE_TOO_LARGE
= ‘An image is too large.’¶QEMU_IMG_RESP_SNAPSHOT_NOT_FOUND
= ‘Failed to find the requested tag’¶QEMU_IMG_RESP_VDI_NOT_FOUND
= ‘No vdi found’¶QEMU_SHEEPDOG_PREFIX
= ‘sheepdog:’¶check_cluster_status
()¶clone
(src_vdiname, src_snapname, dst_vdiname, size)¶create
(vdiname, size)¶create_snapshot
(vdiname, snapname)¶delete
(vdiname)¶delete_snapshot
(vdiname, snapname)¶get_addr
()¶Get a random node in sheepdog cluster.
get_vdi_info
(vdiname)¶get_volume_stats
()¶local_path
(volume)¶Return a sheepdog location path.
resize
(vdiname, size)¶update_node_list
()¶SheepdogDriver
(*args, **kwargs)¶Bases: cinder.volume.driver.VolumeDriver
Executes commands relating to Sheepdog Volumes.
CI_WIKI_NAME
= ‘Cinder_Jenkins’¶VERSION
= ‘1.0.0’¶check_for_setup_error
()¶Check cluster status and update node list.
clone_image
(context, volume, image_location, image_meta, image_service)¶Create a volume efficiently from an existing image.
copy_image_to_volume
(context, volume, image_service, image_id)¶copy_volume_to_image
(context, volume, image_service, image_meta)¶Copy the volume to the specified image.
create_cloned_volume
(volume, src_vref)¶Clone a sheepdog volume from another volume.
create_export
(context, volume, connector)¶Export a volume.
create_snapshot
(snapshot)¶Create a sheepdog snapshot.
create_volume
(volume)¶Create a sheepdog volume.
create_volume_from_snapshot
(volume, snapshot)¶Create a sheepdog volume from a snapshot.
delete_snapshot
(snapshot)¶Delete a sheepdog snapshot.
delete_volume
(volume)¶Delete a logical volume.
ensure_export
(context, volume)¶Safely and synchronously recreate an export for a logical volume.
extend_volume
(volume, new_size)¶Extend an Existing Volume.
get_volume_stats
(refresh=False)¶initialize_connection
(volume, connector)¶remove_export
(context, volume)¶Remove an export for a logical volume.
terminate_connection
(volume, connector, **kwargs)¶SheepdogIOWrapper
(addr, port, volume, snapshot_name=None)¶Bases: io.RawIOBase
File-like object with Sheepdog backend.
fileno
()¶Sheepdog does not have support for fileno so we raise IOError.
Raising IOError is recommended way to notify caller that interface is not supported - see http://docs.python.org/2/library/io.html#io.IOBase
flush
()¶read
(length=None)¶seek
(offset, whence=0)¶tell
()¶write
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