def get_numa_nodes(self):
numa_nodes = self._conn_virt.Msvm_NumaNode()
nodes_info = []
for node in numa_nodes:
related_info = node.associators()
memory_info = self._get_numa_memory_info(related_info)
if not memory_info:
LOG.warning(_LW("Could not find memory information for NUMA "
"node. Skipping node measurements."))
continue
cpu_info = self._get_numa_cpu_info(related_info)
if not cpu_info:
LOG.warning(_LW("Could not find CPU information for NUMA "
"node. Skipping node measurements."))
continue
node_info = {
# NodeID has the format: Microsoft:PhysicalNode\<NODE_ID>
'id': node.NodeID.split('\\')[-1],
# memory block size is 1MB.
'memory': memory_info.NumberOfBlocks,
'memory_usage': node.CurrentlyConsumableMemoryBlocks,
# DeviceID has the format: Microsoft:UUID\0\<DEV_ID>
'cpuset': set([c.DeviceID.split('\\')[-1] for c in cpu_info]),
# cpu_usage can be set, each CPU has a "LoadPercentage"
'cpu_usage': 0,
}
nodes_info.append(node_info)
return nodes_info
def parse_disk_qos_specs(self, qos_specs):
total_bytes_sec = int(qos_specs.get('total_bytes_sec', 0))
min_bytes_sec = int(qos_specs.get('min_bytes_sec', 0))
total_iops = int(qos_specs.get('total_iops_sec',
self._bytes_per_sec_to_iops(
total_bytes_sec)))
min_iops = int(qos_specs.get('min_iops_sec',
self._bytes_per_sec_to_iops(
min_bytes_sec)))
if total_iops and total_iops < min_iops:
err_msg = (_("Invalid QoS specs: minimum IOPS cannot be greater "
"than maximum IOPS. "
"Requested minimum IOPS: %(min_iops)s "
"Requested maximum IOPS: %(total_iops)s.") %
{'min_iops': min_iops,
'total_iops': total_iops})
raise exception.Invalid(err_msg)
unsupported_specs = [spec for spec in qos_specs if
spec not in self._SUPPORTED_QOS_SPECS]
if unsupported_specs:
LOG.warning(_LW('Ignoring unsupported qos specs: '
'%(unsupported_specs)s. '
'Supported qos specs: %(supported_qos_speces)s'),
{'unsupported_specs': unsupported_specs,
'supported_qos_speces': self._SUPPORTED_QOS_SPECS})
return min_iops, total_iops
def parse_disk_qos_specs(self, qos_specs):
total_bytes_sec = int(qos_specs.get('total_bytes_sec', 0))
min_bytes_sec = int(qos_specs.get('min_bytes_sec', 0))
total_iops = int(
qos_specs.get('total_iops_sec',
self._bytes_per_sec_to_iops(total_bytes_sec)))
min_iops = int(
qos_specs.get('min_iops_sec',
self._bytes_per_sec_to_iops(min_bytes_sec)))
if total_iops and total_iops < min_iops:
err_msg = (_("Invalid QoS specs: minimum IOPS cannot be greater "
"than maximum IOPS. "
"Requested minimum IOPS: %(min_iops)s "
"Requested maximum IOPS: %(total_iops)s.") % {
'min_iops': min_iops,
'total_iops': total_iops
})
raise exception.Invalid(err_msg)
unsupported_specs = [
spec for spec in qos_specs if spec not in self._SUPPORTED_QOS_SPECS
]
if unsupported_specs:
LOG.warning(
_LW('Ignoring unsupported qos specs: '
'%(unsupported_specs)s. '
'Supported qos specs: %(supported_qos_speces)s'), {
'unsupported_specs': unsupported_specs,
'supported_qos_speces': self._SUPPORTED_QOS_SPECS
})
return min_iops, total_iops
def validate_initiators(self):
# The MS iSCSI initiator service can manage the software iSCSI
# initiator as well as hardware initiators.
initiator_list = CONF.hyperv.iscsi_initiator_list
valid_initiators = True
if not initiator_list:
LOG.info(
_LI("No iSCSI initiator was explicitly requested. "
"The Microsoft iSCSI initiator will choose the "
"initiator when estabilishing sessions."))
else:
available_initiators = self._iscsi_utils.get_iscsi_initiators()
for initiator in initiator_list:
if initiator not in available_initiators:
valid_initiators = False
msg = _LW("The requested initiator %(req_initiator)s "
"is not in the list of available initiators: "
"%(avail_initiators)s.")
LOG.warning(
msg,
dict(req_initiator=initiator,
avail_initiators=available_initiators))
return valid_initiators
def set_disk_host_resource(self, vm_name, controller_path, address,
mounted_disk_path):
disk_found = False
vm = self._lookup_vm_check(vm_name)
(disk_resources, volume_resources) = self._get_vm_disks(vm)
for disk_resource in disk_resources + volume_resources:
if (disk_resource.Parent == controller_path and
self._get_disk_resource_address(disk_resource) ==
str(address)):
if (disk_resource.HostResource and
disk_resource.HostResource[0] != mounted_disk_path):
LOG.debug('Updating disk host resource "%(old)s" to '
'"%(new)s"' %
{'old': disk_resource.HostResource[0],
'new': mounted_disk_path})
disk_resource.HostResource = [mounted_disk_path]
self._modify_virt_resource(disk_resource, vm.path_())
disk_found = True
break
if not disk_found:
LOG.warning(_LW('Disk not found on controller '
'"%(controller_path)s" with '
'address "%(address)s"'),
{'controller_path': controller_path,
'address': address})
def _soft_shutdown(self, instance,
timeout=CONF.hyperv.wait_soft_reboot_seconds,
retry_interval=SHUTDOWN_TIME_INCREMENT):
"""Perform a soft shutdown on the VM.
:return: True if the instance was shutdown within time limit,
False otherwise.
"""
LOG.debug("Performing Soft shutdown on instance", instance=instance)
while timeout > 0:
# Perform a soft shutdown on the instance.
# Wait maximum timeout for the instance to be shutdown.
# If it was not shutdown, retry until it succeeds or a maximum of
# time waited is equal to timeout.
wait_time = min(retry_interval, timeout)
try:
LOG.debug("Soft shutdown instance, timeout remaining: %d",
timeout, instance=instance)
self._vmutils.soft_shutdown_vm(instance.name)
if self._wait_for_power_off(instance.name, wait_time):
LOG.info(_LI("Soft shutdown succeeded."),
instance=instance)
return True
except os_win_exc.HyperVException as e:
# Exception is raised when trying to shutdown the instance
# while it is still booting.
LOG.debug("Soft shutdown failed: %s", e, instance=instance)
time.sleep(wait_time)
timeout -= retry_interval
LOG.warning(_LW("Timed out while waiting for soft shutdown."),
instance=instance)
return False
def _soft_shutdown(self, instance,
timeout=CONF.hyperv.wait_soft_reboot_seconds,
retry_interval=SHUTDOWN_TIME_INCREMENT):
"""Perform a soft shutdown on the VM.
:return: True if the instance was shutdown within time limit,
False otherwise.
"""
LOG.debug("Performing Soft shutdown on instance", instance=instance)
while timeout > 0:
# Perform a soft shutdown on the instance.
# Wait maximum timeout for the instance to be shutdown.
# If it was not shutdown, retry until it succeeds or a maximum of
# time waited is equal to timeout.
wait_time = min(retry_interval, timeout)
try:
LOG.debug("Soft shutdown instance, timeout remaining: %d",
timeout, instance=instance)
self._vmutils.soft_shutdown_vm(instance.name)
if self._wait_for_power_off(instance.name, wait_time):
LOG.info(_LI("Soft shutdown succeeded."),
instance=instance)
return True
except vmutils.HyperVException as e:
# Exception is raised when trying to shutdown the instance
# while it is still booting.
LOG.debug("Soft shutdown failed: %s", e, instance=instance)
time.sleep(wait_time)
timeout -= retry_interval
LOG.warning(_LW("Timed out while waiting for soft shutdown."),
instance=instance)
return False
def set_disk_host_resource(self, vm_name, controller_path, address,
mounted_disk_path):
disk_found = False
vm = self._lookup_vm_check(vm_name)
(disk_resources, volume_resources) = self._get_vm_disks(vm)
for disk_resource in disk_resources + volume_resources:
if (disk_resource.Parent == controller_path
and self._get_disk_resource_address(disk_resource)
== str(address)):
if (disk_resource.HostResource and
disk_resource.HostResource[0] != mounted_disk_path):
LOG.debug(
'Updating disk host resource "%(old)s" to '
'"%(new)s"' % {
'old': disk_resource.HostResource[0],
'new': mounted_disk_path
})
disk_resource.HostResource = [mounted_disk_path]
self._modify_virt_resource(disk_resource, vm.path_())
disk_found = True
break
if not disk_found:
LOG.warning(
_LW('Disk not found on controller '
'"%(controller_path)s" with '
'address "%(address)s"'), {
'controller_path': controller_path,
'address': address
})
def validate_qos_specs(qos_specs, supported_qos_specs):
unsupported_specs = set(qos_specs.keys()).difference(
supported_qos_specs)
if unsupported_specs:
msg = (_LW('Got unsupported QoS specs: '
'%(unsupported_specs)s. '
'Supported qos specs: %(supported_qos_specs)s') %
{'unsupported_specs': unsupported_specs,
'supported_qos_specs': supported_qos_specs})
LOG.warning(msg)
def validate_qos_specs(qos_specs, supported_qos_specs):
unsupported_specs = set(
qos_specs.keys()).difference(supported_qos_specs)
if unsupported_specs:
msg = (_LW('Got unsupported QoS specs: '
'%(unsupported_specs)s. '
'Supported qos specs: %(supported_qos_specs)s') % {
'unsupported_specs': unsupported_specs,
'supported_qos_specs': supported_qos_specs
})
LOG.warning(msg)
def get_volume_connector(self, instance):
if not self._initiator:
self._initiator = self._volutils.get_iscsi_initiator()
if not self._initiator:
LOG.warning(_LW('Could not determine iscsi initiator name'),
instance=instance)
return {
'ip': CONF.my_block_storage_ip,
'host': CONF.host,
'initiator': self._initiator,
}
def get_volume_connector(self, instance):
if not self._initiator:
self._initiator = self._volutils.get_iscsi_initiator()
if not self._initiator:
LOG.warning(_LW('Could not determine iscsi initiator name'),
instance=instance)
return {
'ip': CONF.my_block_storage_ip,
'host': CONF.host,
'initiator': self._initiator,
}
def set_disk_qos_specs(self, vm_name, disk_path, min_iops, max_iops):
disk_resource = self._get_mounted_disk_resource_from_path(
disk_path, is_physical=False)
try:
disk_resource.IOPSLimit = max_iops
disk_resource.IOPSReservation = min_iops
except AttributeError:
LOG.warn(_LW("This Windows version does not support disk QoS. "
"Ignoring QoS specs."))
return
# VMUtilsV2._modify_virt_resource does not require the vm path.
self._modify_virt_resource(disk_resource, None)
def set_disk_qos_specs(self, vm_name, disk_path, min_iops, max_iops):
disk_resource = self._get_mounted_disk_resource_from_path(
disk_path, is_physical=False)
try:
disk_resource.IOPSLimit = max_iops
disk_resource.IOPSReservation = min_iops
except AttributeError:
LOG.warn(
_LW("This Windows version does not support disk QoS. "
"Ignoring QoS specs."))
return
# VMUtilsV2._modify_virt_resource does not require the vm path.
self._modify_virt_resource(disk_resource, None)
def _check_ephemeral_disks(self,
instance,
ephemerals,
resize_instance=False):
instance_name = instance.name
new_eph_gb = instance.get('ephemeral_gb', 0)
if len(ephemerals) == 1:
# NOTE(claudiub): Resize only if there is one ephemeral. If there
# are more than 1, resizing them can be problematic. This behaviour
# also exists in the libvirt driver and it has to be addressed in
# the future.
ephemerals[0]['size'] = new_eph_gb
elif sum(eph['size'] for eph in ephemerals) != new_eph_gb:
# New ephemeral size is different from the original ephemeral size
# and there are multiple ephemerals.
LOG.warning(_LW("Cannot resize multiple ephemeral disks for "
"instance."),
instance=instance)
for index, eph in enumerate(ephemerals):
eph_name = "eph%s" % index
existing_eph_path = self._pathutils.lookup_ephemeral_vhd_path(
instance_name, eph_name)
if not existing_eph_path:
eph['format'] = self._vhdutils.get_best_supported_vhd_format()
eph['path'] = self._pathutils.get_ephemeral_vhd_path(
instance_name, eph['format'], eph_name)
if not resize_instance:
# ephemerals should have existed.
raise exception.DiskNotFound(location=eph['path'])
if eph['size']:
# create ephemerals
self._vmops.create_ephemeral_disk(instance.name, eph)
elif eph['size'] > 0:
# ephemerals exist. resize them.
eph['path'] = existing_eph_path
eph_vhd_info = self._vhdutils.get_vhd_info(eph['path'])
self._check_resize_vhd(eph['path'], eph_vhd_info,
eph['size'] * units.Gi)
else:
# ephemeral new size is 0, remove it.
self._pathutils.remove(existing_eph_path)
eph['path'] = None
def wait_vif_plug_events(self, instance, network_info):
timeout = CONF.vif_plugging_timeout
if utils.is_neutron():
events = self._get_neutron_events(network_info)
else:
events = []
try:
with self._virtapi.wait_for_instance_event(
instance, events, deadline=timeout,
error_callback=self._neutron_failed_callback):
yield
except etimeout.Timeout:
# We never heard from Neutron
LOG.warning(_LW('Timeout waiting for vif plugging callback for '
'instance.'), instance=instance)
if CONF.vif_plugging_is_fatal:
raise exception.VirtualInterfaceCreateException()
def wait_vif_plug_events(self, instance, network_info):
timeout = CONF.vif_plugging_timeout
if utils.is_neutron():
events = self._get_neutron_events(network_info)
else:
events = []
try:
with self._virtapi.wait_for_instance_event(
instance, events, deadline=timeout,
error_callback=self._neutron_failed_callback):
yield
except etimeout.Timeout:
# We never heard from Neutron
LOG.warning(_LW('Timeout waiting for vif plugging callback for '
'instance.'), instance=instance)
if CONF.vif_plugging_is_fatal:
raise exception.VirtualInterfaceCreateException()
def _check_ephemeral_disks(self, instance, ephemerals,
resize_instance=False):
instance_name = instance.name
new_eph_gb = instance.get('ephemeral_gb', 0)
if len(ephemerals) == 1:
# NOTE(claudiub): Resize only if there is one ephemeral. If there
# are more than 1, resizing them can be problematic. This behaviour
# also exists in the libvirt driver and it has to be addressed in
# the future.
ephemerals[0]['size'] = new_eph_gb
elif sum(eph['size'] for eph in ephemerals) != new_eph_gb:
# New ephemeral size is different from the original ephemeral size
# and there are multiple ephemerals.
LOG.warning(_LW("Cannot resize multiple ephemeral disks for "
"instance."), instance=instance)
for index, eph in enumerate(ephemerals):
eph_name = "eph%s" % index
existing_eph_path = self._pathutils.lookup_ephemeral_vhd_path(
instance_name, eph_name)
if not existing_eph_path:
eph['format'] = self._vhdutils.get_best_supported_vhd_format()
eph['path'] = self._pathutils.get_ephemeral_vhd_path(
instance_name, eph['format'], eph_name)
if not resize_instance:
# ephemerals should have existed.
raise exception.DiskNotFound(location=eph['path'])
if eph['size']:
# create ephemerals
self._vmops.create_ephemeral_disk(instance.name, eph)
elif eph['size'] > 0:
# ephemerals exist. resize them.
eph['path'] = existing_eph_path
eph_vhd_info = self._vhdutils.get_vhd_info(eph['path'])
self._check_resize_vhd(
eph['path'], eph_vhd_info, eph['size'] * units.Gi)
else:
# ephemeral new size is 0, remove it.
self._pathutils.remove(existing_eph_path)
eph['path'] = None
def set_disk_host_resource(self, vm_name, controller_path, address, mounted_disk_path):
disk_found = False
vmsettings = self._lookup_vm_check(vm_name)
(disk_resources, volume_resources) = self._get_vm_disks(vmsettings)
for disk_resource in disk_resources + volume_resources:
if disk_resource.Parent == controller_path and self._get_disk_resource_address(disk_resource) == str(
address
):
if disk_resource.HostResource and disk_resource.HostResource[0] != mounted_disk_path:
LOG.debug(
'Updating disk host resource "%(old)s" to '
'"%(new)s"' % {"old": disk_resource.HostResource[0], "new": mounted_disk_path}
)
disk_resource.HostResource = [mounted_disk_path]
self._modify_virt_resource(disk_resource, vmsettings.path_())
disk_found = True
break
if not disk_found:
LOG.warning(
_LW("Disk not found on controller " '"%(controller_path)s" with ' 'address "%(address)s"'),
{"controller_path": controller_path, "address": address},
)
def validate_initiators(self):
# The MS iSCSI initiator service can manage the software iSCSI
# initiator as well as hardware initiators.
initiator_list = CONF.hyperv.iscsi_initiator_list
valid_initiators = True
if not initiator_list:
LOG.info(_LI("No iSCSI initiator was explicitly requested. "
"The Microsoft iSCSI initiator will choose the "
"initiator when estabilishing sessions."))
else:
available_initiators = self._iscsi_utils.get_iscsi_initiators()
for initiator in initiator_list:
if initiator not in available_initiators:
valid_initiators = False
msg = _LW("The requested initiator %(req_initiator)s "
"is not in the list of available initiators: "
"%(avail_initiators)s.")
LOG.warning(msg,
dict(req_initiator=initiator,
avail_initiators=available_initiators))
return valid_initiators
def create_instance(self, instance, network_info, root_device,
block_device_info, vm_gen, image_meta):
instance_name = instance.name
instance_path = os.path.join(CONF.instances_path, instance_name)
memory_per_numa_node, cpus_per_numa_node = (
self._get_instance_vnuma_config(instance, image_meta))
if memory_per_numa_node:
if CONF.hyperv.dynamic_memory_ratio > 1.0:
LOG.warning(_LW(
"Instance vNUMA topology requested, but dynamic memory "
"ratio is higher than 1.0 in nova.conf. Ignoring dynamic "
"memory ratio option."),
instance=instance)
dynamic_memory_ratio = 1.0
vnuma_enabled = True
else:
dynamic_memory_ratio = CONF.hyperv.dynamic_memory_ratio
vnuma_enabled = False
self._vmutils.create_vm(instance_name, vnuma_enabled, vm_gen,
instance_path, [instance.uuid])
self._vmutils.update_vm(instance_name, instance.memory_mb,
memory_per_numa_node, instance.vcpus,
cpus_per_numa_node,
CONF.hyperv.limit_cpu_features,
dynamic_memory_ratio)
flavor_extra_specs = instance.flavor.extra_specs
remote_fx_config = flavor_extra_specs.get(
constants.FLAVOR_REMOTE_FX_EXTRA_SPEC_KEY)
if remote_fx_config:
self._configure_remotefx(instance, vm_gen, remote_fx_config)
self._vmutils.create_scsi_controller(instance_name)
self._attach_root_device(instance_name, root_device)
self._attach_ephemerals(instance_name, block_device_info['ephemerals'])
self._volumeops.attach_volumes(
block_device_info['block_device_mapping'], instance_name)
serial_ports = self._get_image_serial_port_settings(image_meta)
self._create_vm_com_port_pipes(instance, serial_ports)
self._set_instance_disk_qos_specs(instance)
for vif in network_info:
LOG.debug('Creating nic for instance', instance=instance)
self._vmutils.create_nic(instance_name, vif['id'], vif['address'])
vif_driver = self._get_vif_driver(vif.get('type'))
vif_driver.plug(instance, vif)
if CONF.hyperv.enable_instance_metrics_collection:
self._metricsutils.enable_vm_metrics_collection(instance_name)
secure_boot_enabled = self._requires_secure_boot(
instance, image_meta, vm_gen)
if secure_boot_enabled:
certificate_required = self._requires_certificate(
instance.uuid, image_meta)
self._vmutils.enable_secure_boot(instance.name,
certificate_required)
def create_instance(self, instance, network_info, root_device,
block_device_info, vm_gen, image_meta):
instance_name = instance.name
instance_path = os.path.join(CONF.instances_path, instance_name)
memory_per_numa_node, cpus_per_numa_node = (
self._get_instance_vnuma_config(instance, image_meta))
if memory_per_numa_node:
if CONF.hyperv.dynamic_memory_ratio > 1.0:
LOG.warning(_LW(
"Instance vNUMA topology requested, but dynamic memory "
"ratio is higher than 1.0 in nova.conf. Ignoring dynamic "
"memory ratio option."), instance=instance)
dynamic_memory_ratio = 1.0
vnuma_enabled = True
else:
dynamic_memory_ratio = CONF.hyperv.dynamic_memory_ratio
vnuma_enabled = False
self._vmutils.create_vm(instance_name,
vnuma_enabled,
vm_gen,
instance_path,
[instance.uuid])
self._vmutils.update_vm(instance_name,
instance.memory_mb,
memory_per_numa_node,
instance.vcpus,
cpus_per_numa_node,
CONF.hyperv.limit_cpu_features,
dynamic_memory_ratio)
flavor_extra_specs = instance.flavor.extra_specs
remote_fx_config = flavor_extra_specs.get(
constants.FLAVOR_REMOTE_FX_EXTRA_SPEC_KEY)
if remote_fx_config:
self._configure_remotefx(instance, vm_gen, remote_fx_config)
self._vmutils.create_scsi_controller(instance_name)
self._attach_root_device(instance_name, root_device)
self._attach_ephemerals(instance_name, block_device_info['ephemerals'])
self._volumeops.attach_volumes(
block_device_info['block_device_mapping'], instance_name)
serial_ports = self._get_image_serial_port_settings(image_meta)
self._create_vm_com_port_pipes(instance, serial_ports)
self._set_instance_disk_qos_specs(instance)
for vif in network_info:
LOG.debug('Creating nic for instance', instance=instance)
self._vmutils.create_nic(instance_name,
vif['id'],
vif['address'])
vif_driver = self._get_vif_driver(vif.get('type'))
vif_driver.plug(instance, vif)
if CONF.hyperv.enable_instance_metrics_collection:
self._metricsutils.enable_vm_metrics_collection(instance_name)
secure_boot_enabled = self._requires_secure_boot(
instance, image_meta, vm_gen)
if secure_boot_enabled:
certificate_required = self._requires_certificate(instance.uuid,
image_meta)
self._vmutils.enable_secure_boot(instance.name,
certificate_required)
def set_disk_qos_specs(self, vm_name, disk_path, min_iops, max_iops):
LOG.warn(_LW("The root/virtualization WMI namespace does not "
"support QoS. Ignoring QoS specs."))
def set_disk_qos_specs(self, connection_info, min_iops, max_iops):
volume_type = connection_info.get('driver_volume_type', '')
LOG.warning(_LW("The %s Hyper-V volume driver does not support QoS. "
"Ignoring QoS specs."), volume_type)
def snapshot(self, context, instance, image_id, update_task_state):
"""Create snapshot from a running VM instance."""
instance_name = instance.name
LOG.debug("Creating snapshot for instance %s", instance_name)
snapshot_path = self._vmutils.take_vm_snapshot(instance_name)
update_task_state(task_state=task_states.IMAGE_PENDING_UPLOAD)
export_dir = None
try:
src_vhd_path = self._pathutils.lookup_root_vhd_path(instance_name)
LOG.debug("Getting info for VHD %s", src_vhd_path)
src_base_disk_path = self._vhdutils.get_vhd_parent_path(
src_vhd_path)
export_dir = self._pathutils.get_export_dir(instance_name)
dest_vhd_path = os.path.join(export_dir,
os.path.basename(src_vhd_path))
LOG.debug('Copying VHD %(src_vhd_path)s to %(dest_vhd_path)s', {
'src_vhd_path': src_vhd_path,
'dest_vhd_path': dest_vhd_path
})
self._pathutils.copyfile(src_vhd_path, dest_vhd_path)
image_vhd_path = None
if not src_base_disk_path:
image_vhd_path = dest_vhd_path
else:
basename = os.path.basename(src_base_disk_path)
dest_base_disk_path = os.path.join(export_dir, basename)
LOG.debug(
'Copying base disk %(src_vhd_path)s to '
'%(dest_base_disk_path)s', {
'src_vhd_path': src_vhd_path,
'dest_base_disk_path': dest_base_disk_path
})
self._pathutils.copyfile(src_base_disk_path,
dest_base_disk_path)
LOG.debug(
"Reconnecting copied base VHD "
"%(dest_base_disk_path)s and diff "
"VHD %(dest_vhd_path)s", {
'dest_base_disk_path': dest_base_disk_path,
'dest_vhd_path': dest_vhd_path
})
self._vhdutils.reconnect_parent_vhd(dest_vhd_path,
dest_base_disk_path)
LOG.debug(
"Merging base disk %(dest_base_disk_path)s and "
"diff disk %(dest_vhd_path)s", {
'dest_base_disk_path': dest_base_disk_path,
'dest_vhd_path': dest_vhd_path
})
self._vhdutils.merge_vhd(dest_vhd_path, dest_base_disk_path)
image_vhd_path = dest_base_disk_path
LOG.debug(
"Updating Glance image %(image_id)s with content from "
"merged disk %(image_vhd_path)s", {
'image_id': image_id,
'image_vhd_path': image_vhd_path
})
update_task_state(task_state=task_states.IMAGE_UPLOADING,
expected_state=task_states.IMAGE_PENDING_UPLOAD)
self._save_glance_image(context, image_id, image_vhd_path)
LOG.debug(
"Snapshot image %(image_id)s updated for VM "
"%(instance_name)s", {
'image_id': image_id,
'instance_name': instance_name
})
finally:
try:
LOG.debug("Removing snapshot %s", image_id)
self._vmutils.remove_vm_snapshot(snapshot_path)
except Exception as ex:
LOG.exception(ex)
LOG.warning(_LW('Failed to remove snapshot for VM %s'),
instance_name)
if export_dir:
LOG.debug('Removing directory: %s', export_dir)
self._pathutils.rmtree(export_dir)
def set_disk_qos_specs(self, connection_info, instance_name,
min_iops, max_iops):
LOG.warn(_LW("The iSCSI Hyper-V volume driver does not support QoS. "
"Ignoring QoS specs."))
def set_disk_qos_specs(self, connection_info, min_iops, max_iops):
volume_type = connection_info.get('driver_volume_type', '')
LOG.warning(
_LW("The %s Hyper-V volume driver does not support QoS. "
"Ignoring QoS specs."), volume_type)
def set_disk_qos_specs(self, connection_info, instance_name,
min_iops, max_iops):
LOG.warn(_LW("The iSCSI Hyper-V volume driver does not support QoS. "
"Ignoring QoS specs."))
def snapshot(self, context, instance, image_id, update_task_state):
"""Create snapshot from a running VM instance."""
instance_name = instance.name
LOG.debug("Creating snapshot for instance %s", instance_name)
snapshot_path = self._vmutils.take_vm_snapshot(instance_name)
update_task_state(task_state=task_states.IMAGE_PENDING_UPLOAD)
export_dir = None
try:
src_vhd_path = self._pathutils.lookup_root_vhd_path(instance_name)
LOG.debug("Getting info for VHD %s", src_vhd_path)
src_base_disk_path = self._vhdutils.get_vhd_parent_path(
src_vhd_path)
export_dir = self._pathutils.get_export_dir(instance_name)
dest_vhd_path = os.path.join(export_dir, os.path.basename(
src_vhd_path))
LOG.debug('Copying VHD %(src_vhd_path)s to %(dest_vhd_path)s',
{'src_vhd_path': src_vhd_path,
'dest_vhd_path': dest_vhd_path})
self._pathutils.copyfile(src_vhd_path, dest_vhd_path)
image_vhd_path = None
if not src_base_disk_path:
image_vhd_path = dest_vhd_path
else:
basename = os.path.basename(src_base_disk_path)
dest_base_disk_path = os.path.join(export_dir, basename)
LOG.debug('Copying base disk %(src_vhd_path)s to '
'%(dest_base_disk_path)s',
{'src_vhd_path': src_vhd_path,
'dest_base_disk_path': dest_base_disk_path})
self._pathutils.copyfile(src_base_disk_path,
dest_base_disk_path)
LOG.debug("Reconnecting copied base VHD "
"%(dest_base_disk_path)s and diff "
"VHD %(dest_vhd_path)s",
{'dest_base_disk_path': dest_base_disk_path,
'dest_vhd_path': dest_vhd_path})
self._vhdutils.reconnect_parent_vhd(dest_vhd_path,
dest_base_disk_path)
LOG.debug("Merging base disk %(dest_base_disk_path)s and "
"diff disk %(dest_vhd_path)s",
{'dest_base_disk_path': dest_base_disk_path,
'dest_vhd_path': dest_vhd_path})
self._vhdutils.merge_vhd(dest_vhd_path, dest_base_disk_path)
image_vhd_path = dest_base_disk_path
LOG.debug("Updating Glance image %(image_id)s with content from "
"merged disk %(image_vhd_path)s",
{'image_id': image_id, 'image_vhd_path': image_vhd_path})
update_task_state(task_state=task_states.IMAGE_UPLOADING,
expected_state=task_states.IMAGE_PENDING_UPLOAD)
self._save_glance_image(context, image_id, image_vhd_path)
LOG.debug("Snapshot image %(image_id)s updated for VM "
"%(instance_name)s",
{'image_id': image_id, 'instance_name': instance_name})
finally:
try:
LOG.debug("Removing snapshot %s", image_id)
self._vmutils.remove_vm_snapshot(snapshot_path)
except Exception as ex:
LOG.exception(ex)
LOG.warning(_LW('Failed to remove snapshot for VM %s'),
instance_name)
if export_dir:
LOG.debug('Removing directory: %s', export_dir)
self._pathutils.rmtree(export_dir)
def set_disk_qos_specs(self, vm_name, disk_path, min_iops, max_iops):
LOG.warn(
_LW("The root/virtualization WMI namespace does not "
"support QoS. Ignoring QoS specs."))
