def download_disk(connection, backup_uuid, disk, disk_path, args):
transfer = create_transfer(connection, backup_uuid, disk)
try:
# We must use the daemon for downloading a backup disk.
download_url = transfer.transfer_url
with ui.ProgressBar() as pb:
client.download(download_url,
disk_path,
args.cafile,
secure=args.secure,
progress=pb)
finally:
finalize_transfer(connection, transfer)
# At this stage, the SDK granted the permission to start transferring the disk, and the
# user should choose its preferred tool for doing it - regardless of the SDK.
# In this example, we will use Python's httplib.HTTPSConnection for transferring the data.
if args.direct:
if transfer.transfer_url is not None:
destination_url = transfer.transfer_url
else:
print(
"Direct upload to host not supported (requires ovirt-engine 4.2 or above)."
)
sys.exit(1)
else:
destination_url = transfer.proxy_url
image_size = os.path.getsize(args.filename)
with ui.ProgressBar(image_size) as pb:
client.upload(args.filename,
destination_url,
args.cafile,
secure=args.secure,
progress=pb.update)
print("Finalizing transfer session...")
# Successful cleanup
transfer_service.finalize()
connection.close()
print("Upload completed successfully")
# After adding a new transfer for the disk, the transfer's status will be INITIALIZING.
# Wait until the init phase is over. The actual transfer can start when its status is "Transferring".
while transfer.phase == types.ImageTransferPhase.INITIALIZING:
time.sleep(1)
transfer = transfer_service.get()
print("Uploading image...")
# At this stage, the SDK granted the permission to start transferring the disk, and the
# user should choose its preferred tool for doing it. We use the recommended
# way, ovirt-imageio client library.
if args.use_proxy:
destination_url = transfer.proxy_url
else:
destination_url = transfer.transfer_url
with ui.ProgressBar() as pb:
client.upload(args.filename,
destination_url,
args.cafile,
secure=args.secure,
progress=pb)
print("Finalizing transfer session...")
# Successful cleanup
transfer_service.finalize()
connection.close()
print("Upload completed successfully")