class HttpNfcTransferer(HttpTransferer):
""" Class for handling HTTP-based disk transfers between ESX hosts.
This class employs the ImportVApp and ExportVM APIs to transfer
VMDKs efficiently to another host. A shadow VM is created and used in the
initial export of the VMDK into the stream optimized format needed by
ImportVApp.
"""
LEASE_INITIALIZATION_WAIT_SECS = 10
def __init__(self, vim_client, image_datastores, host_name="localhost"):
super(HttpNfcTransferer, self).__init__(vim_client)
self.lock = threading.Lock()
self._shadow_vm_id = "shadow_%s" % self._vim_client.host_uuid
self._lease_url_host_name = host_name
self._image_datastores = image_datastores
self._vm_config = EsxVmConfig(self._vim_client)
self._vm_manager = EsxVmManager(self._vim_client, None)
def _get_remote_connections(self, host, port):
agent_client = DirectClient("Host", Host.Client, host, port)
agent_client.connect()
request = ServiceTicketRequest(service_type=ServiceType.VIM)
response = agent_client.get_service_ticket(request)
if response.result != ServiceTicketResultCode.OK:
self._logger.info("Get service ticket failed. Response = %s" %
str(response))
raise ValueError("No ticket")
vim_client = VimClient(
host=host, ticket=response.vim_ticket, auto_sync=False)
return agent_client, vim_client
def _get_disk_url_from_lease(self, lease):
for dev_url in lease.info.deviceUrl:
self._logger.debug("%s -> %s" % (dev_url.key, dev_url.url))
return dev_url.url
def _wait_for_lease(self, lease):
retries = HttpNfcTransferer.LEASE_INITIALIZATION_WAIT_SECS
state = None
while retries > 0:
state = lease.state
if state != vim.HttpNfcLease.State.initializing:
break
retries -= 1
time.sleep(1)
if retries == 0:
self._logger.debug("Nfc lease initialization timed out")
raise NfcLeaseInitiatizationTimeout()
if state == vim.HttpNfcLease.State.error:
self._logger.debug("Fail to initialize nfc lease: %s" %
str(lease.error))
raise NfcLeaseInitiatizationError()
def _ensure_host_in_url(self, url, actual_host):
# URLs from vApp export/import leases have '*' as placeholder
# for host names that has to be replaced with the actual
# host on which the resource resides.
protocol, host, selector = self._split_url(url)
if host.find("*") != -1:
host = host.replace("*", actual_host)
return "%s://%s%s" % (protocol, host, selector)
def _export_shadow_vm(self):
""" Initiates the Export VM operation.
The lease created as part of ExportVM contains, among other things,
the url to the stream-optimized disk of the image currently associated
with the VM being exported.
"""
vm = self._vim_client.get_vm_obj_in_cache(self._shadow_vm_id)
lease = vm.ExportVm()
self._wait_for_lease(lease)
return lease, self._get_disk_url_from_lease(lease)
def _get_shadow_vm_datastore(self):
# The datastore in which the shadow VM will be created.
return self._image_datastores[0]
def _ensure_shadow_vm(self):
""" Creates a shadow vm specifically for use by this host if absent.
The shadow VM created is used to facilitate host-to-host transfer
of any image accessible on this host to another datastore not directly
accessible from this host.
"""
vm_id = self._shadow_vm_id
if self._vm_manager.has_vm(vm_id):
self._logger.debug("shadow vm exists")
return
spec = self._vm_config.create_spec(
vm_id=vm_id, datastore=self._get_shadow_vm_datastore(),
memory=32, cpus=1)
try:
self._vm_manager.create_vm(vm_id, spec)
except Exception:
self._logger.exception("Error creating vm with id %s" % vm_id)
raise
def _configure_shadow_vm_with_disk(self, image_id, image_datastore):
""" Reconfigures the shadow vm to contain only one image disk. """
try:
spec = self._vm_manager.update_vm_spec()
info = self._vm_manager.get_vm_config(self._shadow_vm_id)
self._vm_manager.remove_all_disks(spec, info)
self._vm_manager.add_disk(spec, image_datastore, image_id, info,
disk_is_image=True)
self._vm_manager.update_vm(self._shadow_vm_id, spec)
except Exception:
self._logger.exception(
"Error configuring shadow vm with image %s" % image_id)
raise
def _get_image_stream_from_shadow_vm(self, image_id, image_datastore):
""" Obtain a handle to the streamOptimized disk from shadow vm.
The stream-optimized disk is obtained via configuring a shadow
VM with the image disk we are interested in and exporting the
reconfigured shadow VM.
"""
self._ensure_shadow_vm()
self._configure_shadow_vm_with_disk(image_id, image_datastore)
lease, disk_url = self._export_shadow_vm()
disk_url = self._ensure_host_in_url(disk_url,
self._lease_url_host_name)
return lease, disk_url
def _create_import_vm_spec(self, image_id, datastore):
vm_name = "h2h_%s" % str(uuid.uuid4())
spec = self._vm_config.create_spec_for_import(vm_id=vm_name,
image_id=image_id,
datastore=datastore,
memory=32,
cpus=1)
# Just specify a tiny capacity in the spec for now; the eventual vm
# disk will be based on what is uploaded via the http nfc url.
spec = self._vm_manager.create_empty_disk(spec, datastore, None,
size_mb=1)
import_spec = vim.vm.VmImportSpec(configSpec=spec)
return import_spec
def _get_url_from_import_vm(self, dst_vim_client, import_spec):
vm_folder = dst_vim_client.vm_folder
root_rp = dst_vim_client.root_resource_pool
lease = root_rp.ImportVApp(import_spec, vm_folder)
self._wait_for_lease(lease)
disk_url = self._get_disk_url_from_lease(lease)
disk_url = self._ensure_host_in_url(disk_url, dst_vim_client.host)
return lease, disk_url
def _register_imported_image_at_host(self, agent_client,
image_id, destination_datastore,
imported_vm_name, metadata, manifest):
""" Installs an image at another host.
Image data was transferred via ImportVApp to said host.
"""
request = ReceiveImageRequest(
image_id=image_id,
datastore_id=destination_datastore,
transferred_image_id=imported_vm_name,
metadata=metadata,
manifest=manifest,
)
response = agent_client.receive_image(request)
if response.result == ReceiveImageResultCode.DESTINATION_ALREADY_EXIST:
raise DiskAlreadyExistException(response.error)
if response.result != ReceiveImageResultCode.OK:
raise ReceiveImageException(response.result, response.error)
def _read_metadata(self, image_datastore, image_id):
try:
# Transfer raw manifest
manifest_path = os_image_manifest_path(image_datastore, image_id)
with open(manifest_path) as f:
manifest = f.read()
# Transfer raw metadata
metadata_path = os_metadata_path(image_datastore, image_id,
IMAGE_FOLDER_NAME)
metadata = None
if os.path.exists(metadata_path):
with open(metadata_path, 'r') as f:
metadata = f.read()
return manifest, metadata
except:
self._logger.exception("Failed to read metadata")
raise
@lock_non_blocking
def send_image_to_host(self, image_id, image_datastore,
destination_image_id, destination_datastore,
host, port, intermediate_file_path=None):
manifest, metadata = self._read_metadata(image_datastore, image_id)
read_lease, disk_url = self._get_image_stream_from_shadow_vm(
image_id, image_datastore)
# Save stream-optimized disk to a unique path locally for now.
# TODO(vui): Switch to chunked transfers to handle not knowing content
# length in the full streaming mode.
if intermediate_file_path:
tmp_path = intermediate_file_path
else:
tmp_path = "/vmfs/volumes/%s/%s_transfer.vmdk" % (
self._get_shadow_vm_datastore(),
self._shadow_vm_id)
try:
self.download_file(disk_url, tmp_path)
finally:
read_lease.Complete()
if destination_image_id is None:
destination_image_id = image_id
spec = self._create_import_vm_spec(
destination_image_id, destination_datastore)
agent_client, vim_client = self._get_remote_connections(host, port)
try:
write_lease, disk_url = self._get_url_from_import_vm(vim_client,
spec)
try:
self.upload_file(tmp_path, disk_url)
finally:
write_lease.Complete()
try:
os.unlink(tmp_path)
except OSError:
pass
# TODO(vui): imported vm name should be made unique to remove
# ambiguity during subsequent lookup
imported_vm_name = destination_image_id
self._register_imported_image_at_host(
agent_client, destination_image_id, destination_datastore,
imported_vm_name, metadata, manifest)
finally:
agent_client.close()
vim_client.disconnect()
return imported_vm_name
class HttpNfcTransferer(HttpTransferer):
""" Class for handling HTTP-based disk transfers between ESX hosts.
This class employs the ImportVApp and ExportVM APIs to transfer
VMDKs efficiently to another host. A shadow VM is created and used in the
initial export of the VMDK into the stream optimized format needed by
ImportVApp.
"""
LEASE_INITIALIZATION_WAIT_SECS = 10
def __init__(self, vim_client, image_datastores, host_name="localhost"):
super(HttpNfcTransferer, self).__init__(vim_client)
self.lock = threading.Lock()
self._lease_url_host_name = host_name
self._image_datastores = image_datastores
self._vm_config = EsxVmConfig(self._vim_client)
self._vm_manager = EsxVmManager(self._vim_client, None)
def _create_remote_vim_client(self, agent_client, host):
request = ServiceTicketRequest(service_type=ServiceType.VIM)
response = agent_client.get_service_ticket(request)
if response.result != ServiceTicketResultCode.OK:
self._logger.info("Get service ticket failed. Response = %s" %
str(response))
raise ValueError("No ticket")
vim_client = VimClient(host=host,
ticket=response.vim_ticket,
auto_sync=False)
return vim_client
def _get_disk_url_from_lease(self, lease):
for dev_url in lease.info.deviceUrl:
self._logger.debug("%s -> %s" % (dev_url.key, dev_url.url))
return dev_url.url
def _wait_for_lease(self, lease):
retries = HttpNfcTransferer.LEASE_INITIALIZATION_WAIT_SECS
state = None
while retries > 0:
state = lease.state
if state != vim.HttpNfcLease.State.initializing:
break
retries -= 1
time.sleep(1)
if retries == 0:
self._logger.debug("Nfc lease initialization timed out")
raise NfcLeaseInitiatizationTimeout()
if state == vim.HttpNfcLease.State.error:
self._logger.debug("Fail to initialize nfc lease: %s" %
str(lease.error))
raise NfcLeaseInitiatizationError()
def _ensure_host_in_url(self, url, actual_host):
# URLs from vApp export/import leases have '*' as placeholder
# for host names that has to be replaced with the actual
# host on which the resource resides.
protocol, host, selector = self._split_url(url)
if host.find("*") != -1:
host = host.replace("*", actual_host)
return "%s://%s%s" % (protocol, host, selector)
def _export_shadow_vm(self, shadow_vm_id):
""" Initiates the Export VM operation.
The lease created as part of ExportVM contains, among other things,
the url to the stream-optimized disk of the image currently associated
with the VM being exported.
"""
vm = self._vim_client.get_vm_obj_in_cache(shadow_vm_id)
lease = vm.ExportVm()
self._wait_for_lease(lease)
return lease, self._get_disk_url_from_lease(lease)
def _get_shadow_vm_datastore(self):
# The datastore in which the shadow VM will be created.
return self._image_datastores[0]
def _create_shadow_vm(self):
""" Creates a shadow vm specifically for use by this host.
The shadow VM created is used to facilitate host-to-host transfer
of any image accessible on this host to another datastore not directly
accessible from this host.
"""
shadow_vm_id = SHADOW_VM_NAME_PREFIX + str(uuid.uuid4())
spec = self._vm_config.create_spec(
vm_id=shadow_vm_id,
datastore=self._get_shadow_vm_datastore(),
memory=32,
cpus=1)
try:
self._vm_manager.create_vm(shadow_vm_id, spec)
except Exception:
self._logger.exception("Error creating vm with id %s" %
shadow_vm_id)
raise
return shadow_vm_id
def _delete_shadow_vm(self, shadow_vm_id):
try:
# detach disk so it is not deleted along with vm
spec = self._vm_manager.update_vm_spec()
info = self._vm_manager.get_vm_config(shadow_vm_id)
self._vm_manager.remove_all_disks(spec, info)
self._vm_manager.update_vm(shadow_vm_id, spec)
# delete the vm
self._vm_manager.delete_vm(shadow_vm_id, force=True)
except Exception:
self._logger.exception("Error deleting vm with id %s" %
shadow_vm_id)
def _configure_shadow_vm_with_disk(self, image_id, image_datastore,
shadow_vm_id):
""" Reconfigures the shadow vm to contain only one image disk. """
try:
spec = self._vm_manager.update_vm_spec()
info = self._vm_manager.get_vm_config(shadow_vm_id)
self._vm_manager.add_disk(spec,
image_datastore,
image_id,
info,
disk_is_image=True)
self._vm_manager.update_vm(shadow_vm_id, spec)
except Exception:
self._logger.exception(
"Error configuring shadow vm with image %s" % image_id)
raise
def _get_image_stream_from_shadow_vm(self, image_id, image_datastore,
shadow_vm_id):
""" Obtain a handle to the streamOptimized disk from shadow vm.
The stream-optimized disk is obtained via configuring a shadow
VM with the image disk we are interested in and exporting the
reconfigured shadow VM.
"""
self._configure_shadow_vm_with_disk(image_id, image_datastore,
shadow_vm_id)
lease, disk_url = self._export_shadow_vm(shadow_vm_id)
disk_url = self._ensure_host_in_url(disk_url,
self._lease_url_host_name)
return lease, disk_url
def _prepare_receive_image(self, agent_client, image_id, datastore):
request = PrepareReceiveImageRequest(image_id, datastore)
response = agent_client.prepare_receive_image(request)
if response.result != PrepareReceiveImageResultCode.OK:
err_msg = "Failed to prepare receive image. Response = %s" % str(
response)
self._logger.info(err_msg)
raise ValueError(err_msg)
return response.import_vm_path, response.import_vm_id
def _create_import_vm_spec(self, vm_id, datastore, vm_path):
spec = EsxVmConfigSpec(vm_id, "otherGuest", 32, 1, vm_path, None)
# Just specify a tiny capacity in the spec for now; the eventual vm
# disk will be based on what is uploaded via the http nfc url.
spec = self._vm_manager.create_empty_disk(spec,
datastore,
None,
size_mb=1)
import_spec = vim.vm.VmImportSpec(configSpec=spec)
return import_spec
def _get_url_from_import_vm(self, dst_vim_client, import_spec):
vm_folder = dst_vim_client.vm_folder
root_rp = dst_vim_client.root_resource_pool
lease = root_rp.ImportVApp(import_spec, vm_folder)
self._wait_for_lease(lease)
disk_url = self._get_disk_url_from_lease(lease)
disk_url = self._ensure_host_in_url(disk_url, dst_vim_client.host)
return lease, disk_url
def _register_imported_image_at_host(self, agent_client, image_id,
destination_datastore,
imported_vm_name, metadata):
""" Installs an image at another host.
Image data was transferred via ImportVApp to said host.
"""
request = ReceiveImageRequest(image_id=image_id,
datastore_id=destination_datastore,
transferred_image_id=imported_vm_name,
metadata=metadata)
response = agent_client.receive_image(request)
if response.result == ReceiveImageResultCode.DESTINATION_ALREADY_EXIST:
raise DiskAlreadyExistException(response.error)
if response.result != ReceiveImageResultCode.OK:
raise ReceiveImageException(response.result, response.error)
def _read_metadata(self, image_datastore, image_id):
try:
# Transfer raw metadata
metadata_path = os_metadata_path(image_datastore, image_id,
IMAGE_FOLDER_NAME_PREFIX)
metadata = None
if os.path.exists(metadata_path):
with open(metadata_path, 'r') as f:
metadata = f.read()
return metadata
except:
self._logger.exception("Failed to read metadata")
raise
def _send_image(self, agent_client, host, tmp_path, spec):
vim_client = self._create_remote_vim_client(agent_client, host)
try:
write_lease, disk_url = self._get_url_from_import_vm(
vim_client, spec)
try:
self.upload_file(tmp_path, disk_url, write_lease)
finally:
write_lease.Complete()
finally:
vim_client.disconnect()
@lock_non_blocking
def send_image_to_host(self, image_id, image_datastore,
destination_image_id, destination_datastore, host,
port):
if destination_image_id is None:
destination_image_id = image_id
metadata = self._read_metadata(image_datastore, image_id)
shadow_vm_id = self._create_shadow_vm()
# place transfer.vmdk under shadow_vm_path to work around VSAN's restriction on
# files at datastore top-level
shadow_vm_path = os_datastore_path(
self._get_shadow_vm_datastore(),
compond_path_join(VM_FOLDER_NAME_PREFIX, shadow_vm_id))
transfer_vmdk_path = os.path.join(shadow_vm_path, "transfer.vmdk")
self._logger.info("transfer_vmdk_path = %s" % transfer_vmdk_path)
agent_client = None
try:
read_lease, disk_url = self._get_image_stream_from_shadow_vm(
image_id, image_datastore, shadow_vm_id)
try:
self.download_file(disk_url, transfer_vmdk_path, read_lease)
finally:
read_lease.Complete()
agent_client = DirectClient("Host", Host.Client, host, port)
agent_client.connect()
vm_path, vm_id = self._prepare_receive_image(
agent_client, destination_image_id, destination_datastore)
spec = self._create_import_vm_spec(vm_id, destination_datastore,
vm_path)
self._send_image(agent_client, host, transfer_vmdk_path, spec)
self._register_imported_image_at_host(agent_client,
destination_image_id,
destination_datastore, vm_id,
metadata)
return vm_id
finally:
try:
os.unlink(transfer_vmdk_path)
except OSError:
pass
self._delete_shadow_vm(shadow_vm_id)
rm_rf(shadow_vm_path)
if agent_client:
agent_client.close()
class HttpNfcTransferer(HttpTransferer):
""" Class for handling HTTP-based disk transfers between ESX hosts.
This class employs the ImportVApp and ExportVM APIs to transfer
VMDKs efficiently to another host. A shadow VM is created and used in the
initial export of the VMDK into the stream optimized format needed by
ImportVApp.
"""
LEASE_INITIALIZATION_WAIT_SECS = 10
def __init__(self, vim_client, image_datastores, host_name="localhost"):
super(HttpNfcTransferer, self).__init__(vim_client)
self.lock = threading.Lock()
self._shadow_vm_id = "shadow_%s" % self._vim_client.host_uuid
self._lease_url_host_name = host_name
self._image_datastores = image_datastores
self._vm_config = EsxVmConfig(self._vim_client)
self._vm_manager = EsxVmManager(self._vim_client, None)
def _get_remote_connections(self, host, port):
agent_client = DirectClient("Host", Host.Client, host, port)
agent_client.connect()
request = ServiceTicketRequest(service_type=ServiceType.VIM)
response = agent_client.get_service_ticket(request)
if response.result != ServiceTicketResultCode.OK:
self._logger.info("Get service ticket failed. Response = %s" %
str(response))
raise ValueError("No ticket")
vim_client = VimClient(host=host,
ticket=response.vim_ticket,
auto_sync=False)
return agent_client, vim_client
def _get_disk_url_from_lease(self, lease):
for dev_url in lease.info.deviceUrl:
self._logger.debug("%s -> %s" % (dev_url.key, dev_url.url))
return dev_url.url
def _wait_for_lease(self, lease):
retries = HttpNfcTransferer.LEASE_INITIALIZATION_WAIT_SECS
state = None
while retries > 0:
state = lease.state
if state != vim.HttpNfcLease.State.initializing:
break
retries -= 1
time.sleep(1)
if retries == 0:
self._logger.debug("Nfc lease initialization timed out")
raise NfcLeaseInitiatizationTimeout()
if state == vim.HttpNfcLease.State.error:
self._logger.debug("Fail to initialize nfc lease: %s" %
str(lease.error))
raise NfcLeaseInitiatizationError()
def _ensure_host_in_url(self, url, actual_host):
# URLs from vApp export/import leases have '*' as placeholder
# for host names that has to be replaced with the actual
# host on which the resource resides.
protocol, host, selector = self._split_url(url)
if host.find("*") != -1:
host = host.replace("*", actual_host)
return "%s://%s%s" % (protocol, host, selector)
def _export_shadow_vm(self):
""" Initiates the Export VM operation.
The lease created as part of ExportVM contains, among other things,
the url to the stream-optimized disk of the image currently associated
with the VM being exported.
"""
vm = self._vim_client.get_vm_obj_in_cache(self._shadow_vm_id)
lease = vm.ExportVm()
self._wait_for_lease(lease)
return lease, self._get_disk_url_from_lease(lease)
def _get_shadow_vm_datastore(self):
# The datastore in which the shadow VM will be created.
return self._image_datastores[0]
def _ensure_shadow_vm(self):
""" Creates a shadow vm specifically for use by this host if absent.
The shadow VM created is used to facilitate host-to-host transfer
of any image accessible on this host to another datastore not directly
accessible from this host.
"""
vm_id = self._shadow_vm_id
if self._vm_manager.has_vm(vm_id):
self._logger.debug("shadow vm exists")
return
spec = self._vm_config.create_spec(
vm_id=vm_id,
datastore=self._get_shadow_vm_datastore(),
memory=32,
cpus=1)
try:
self._vm_manager.create_vm(vm_id, spec)
except Exception:
self._logger.exception("Error creating vm with id %s" % vm_id)
raise
def _configure_shadow_vm_with_disk(self, image_id, image_datastore):
""" Reconfigures the shadow vm to contain only one image disk. """
try:
spec = self._vm_manager.update_vm_spec()
info = self._vm_manager.get_vm_config(self._shadow_vm_id)
self._vm_manager.remove_all_disks(spec, info)
self._vm_manager.add_disk(spec,
image_datastore,
image_id,
info,
disk_is_image=True)
self._vm_manager.update_vm(self._shadow_vm_id, spec)
except Exception:
self._logger.exception(
"Error configuring shadow vm with image %s" % image_id)
raise
def _get_image_stream_from_shadow_vm(self, image_id, image_datastore):
""" Obtain a handle to the streamOptimized disk from shadow vm.
The stream-optimized disk is obtained via configuring a shadow
VM with the image disk we are interested in and exporting the
reconfigured shadow VM.
"""
self._ensure_shadow_vm()
self._configure_shadow_vm_with_disk(image_id, image_datastore)
lease, disk_url = self._export_shadow_vm()
disk_url = self._ensure_host_in_url(disk_url,
self._lease_url_host_name)
return lease, disk_url
def _create_import_vm_spec(self, image_id, datastore):
vm_name = "h2h_%s" % str(uuid.uuid4())
spec = self._vm_config.create_spec_for_import(vm_id=vm_name,
image_id=image_id,
datastore=datastore,
memory=32,
cpus=1)
# Just specify a tiny capacity in the spec for now; the eventual vm
# disk will be based on what is uploaded via the http nfc url.
spec = self._vm_manager.create_empty_disk(spec,
datastore,
None,
size_mb=1)
import_spec = vim.vm.VmImportSpec(configSpec=spec)
return import_spec
def _get_url_from_import_vm(self, dst_vim_client, import_spec):
vm_folder = dst_vim_client.vm_folder
root_rp = dst_vim_client.root_resource_pool
lease = root_rp.ImportVApp(import_spec, vm_folder)
self._wait_for_lease(lease)
disk_url = self._get_disk_url_from_lease(lease)
disk_url = self._ensure_host_in_url(disk_url, dst_vim_client.host)
return lease, disk_url
def _register_imported_image_at_host(self, agent_client, image_id,
destination_datastore,
imported_vm_name):
""" Installs an image at another host.
Image data was transferred via ImportVApp to said host.
"""
request = ReceiveImageRequest(image_id=image_id,
datastore_id=destination_datastore,
transferred_image_id=imported_vm_name)
response = agent_client.receive_image(request)
if response.result != ReceiveImageResultCode.OK:
raise ReceiveImageException(response.result, response.error)
@lock_non_blocking
def send_image_to_host(self,
image_id,
image_datastore,
destination_image_id,
destination_datastore,
host,
port,
intermediate_file_path=None):
read_lease, disk_url = self._get_image_stream_from_shadow_vm(
image_id, image_datastore)
# Save stream-optimized disk to a unique path locally for now.
# TODO(vui): Switch to chunked transfers to handle not knowing content
# length in the full streaming mode.
if intermediate_file_path:
tmp_path = intermediate_file_path
else:
tmp_path = "/vmfs/volumes/%s/%s_transfer.vmdk" % (
self._get_shadow_vm_datastore(), self._shadow_vm_id)
try:
self.download_file(disk_url, tmp_path)
finally:
read_lease.Complete()
if destination_image_id is None:
destination_image_id = image_id
spec = self._create_import_vm_spec(destination_image_id,
destination_datastore)
agent_client, vim_client = self._get_remote_connections(host, port)
try:
write_lease, disk_url = self._get_url_from_import_vm(
vim_client, spec)
try:
self.upload_file(tmp_path, disk_url)
finally:
write_lease.Complete()
try:
os.unlink(tmp_path)
except OSError:
pass
# TODO(vui): imported vm name should be made unique to remove
# ambiguity during subsequent lookup
imported_vm_name = destination_image_id
self._register_imported_image_at_host(agent_client,
destination_image_id,
destination_datastore,
imported_vm_name)
finally:
agent_client.close()
vim_client.disconnect()
return imported_vm_name