The cinder.volume.drivers.sheepdog
Module¶
SheepDog Volume Driver.
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class
SheepdogClient
(addr, port)¶ Bases:
object
Sheepdog command executor.
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DOG_RESP_CLUSTER_NOT_FORMATTED
= 'Cluster status: Waiting for cluster to be formatted'¶
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DOG_RESP_CLUSTER_RUNNING
= 'Cluster status: running'¶
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DOG_RESP_CLUSTER_WAITING
= 'Cluster status: Waiting for other nodes to join cluster'¶
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DOG_RESP_CONNECTION_ERROR
= 'failed to connect to'¶
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DOG_RESP_VDI_ALREADY_EXISTS
= ': VDI exists already'¶
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DOG_RESP_VDI_NOT_FOUND
= ': No VDI found'¶
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check_cluster_status
()¶
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create
(vdiname, size)¶
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delete
(vdiname)¶
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class
SheepdogDriver
(*args, **kwargs)¶ Bases:
cinder.volume.driver.VolumeDriver
Executes commands relating to Sheepdog Volumes.
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VERSION
= '1.0.0'¶
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backup_volume
(context, backup, backup_service)¶ Create a new backup from an existing volume.
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check_for_setup_error
()¶
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clone_image
(context, volume, image_location, image_meta, image_service)¶ Create a volume efficiently from an existing image.
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copy_image_to_volume
(context, volume, image_service, image_id)¶
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copy_volume_to_image
(context, volume, image_service, image_meta)¶ Copy the volume to the specified image.
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create_cloned_volume
(volume, src_vref)¶ Clone a sheepdog volume from another volume.
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create_export
(context, volume, connector)¶ Export a volume.
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create_snapshot
(snapshot)¶ Create a sheepdog snapshot.
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create_volume
(volume)¶ Create a sheepdog volume.
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create_volume_from_snapshot
(volume, snapshot)¶ Create a sheepdog volume from a snapshot.
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delete_snapshot
(snapshot)¶ Delete a sheepdog snapshot.
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delete_volume
(volume)¶ Delete a logical volume.
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ensure_export
(context, volume)¶ Safely and synchronously recreate an export for a logical volume.
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extend_volume
(volume, new_size)¶ Extend an Existing Volume.
-
get_volume_stats
(refresh=False)¶
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initialize_connection
(volume, connector)¶
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local_path
(volume)¶
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remove_export
(context, volume)¶ Remove an export for a logical volume.
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restore_backup
(context, backup, volume, backup_service)¶ Restore an existing backup to a new or existing volume.
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terminate_connection
(volume, connector, **kwargs)¶
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class
SheepdogIOWrapper
(volume, snapshot_name=None)¶ Bases:
io.RawIOBase
File-like object with Sheepdog backend.
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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
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flush
()¶
-
read
(length=None)¶
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seek
(offset, whence=0)¶
-
tell
()¶
-
write
(data)¶
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