def test_migrate_live_instance_not_running(self):
self._test_migrate_live_failed_with_exception(
exception.InstanceNotRunning(instance_id=""))
def snapshot(self, context, instance, name):
if not instance['name'] in self.instances:
raise exception.InstanceNotRunning()
def snapshot(self, context, instance, name, update_task_state):
if instance['name'] not in self.instances:
raise exception.InstanceNotRunning(instance_id=instance['uuid'])
update_task_state(task_state=task_states.IMAGE_UPLOADING)
def snapshot(self, context, instance, image_id, update_task_state):
if instance.uuid not in self.instances:
raise exception.InstanceNotRunning(instance_id=instance.uuid)
update_task_state(task_state=task_states.IMAGE_UPLOADING)
def _check_instance_is_running(self):
if self.instance.power_state != power_state.RUNNING:
raise exception.InstanceNotRunning(instance_id=self.instance.uuid)
def perform_vmhandoff(self,
context,
instance,
handoff_url,
update_task_state,
residue_glance_id=None):
try:
if hasattr(self, "_lookup_by_name"):
# icehouse
virt_dom = self._lookup_by_name(instance['name'])
else:
# kilo
virt_dom = self._host.get_domain(instance)
except exception.InstanceNotFound:
raise exception.InstanceNotRunning(instance_id=instance['uuid'])
synthesized_vm = self.synthesized_vm_dics.get(instance['uuid'], None)
if synthesized_vm is None:
raise exception.InstanceNotRunning(instance_id=instance['uuid'])
# get the file path for Base VM and VM overlay
(image_service,
image_id) = glance.get_remote_image_service(context,
instance['image_ref'])
image_meta = image_service.show(context, image_id)
base_sha256_uuid, memory_snap_id, diskhash_snap_id, memhash_snap_id = \
self._get_basevm_meta_info(image_meta)
basedisk_path = self._get_cache_image(context, instance,
image_meta['id'])
basemem_path = self._get_cache_image(context, instance, memory_snap_id)
diskhash_path = self._get_cache_image(context, instance,
diskhash_snap_id)
memhash_path = self._get_cache_image(context, instance,
memhash_snap_id)
base_vm_paths = [
basedisk_path, basemem_path, diskhash_path, memhash_path
]
update_task_state(task_state=task_states.IMAGE_PENDING_UPLOAD,
expected_state=None)
try:
residue_filepath = self._handoff_send(base_vm_paths,
base_sha256_uuid,
synthesized_vm, handoff_url)
except handoff.HandoffError as e:
msg = "failed to perform VM handoff:\n"
msg += str(e)
raise exception.ImageNotFound(msg)
del self.synthesized_vm_dics[instance['uuid']]
if residue_filepath:
LOG.info("residue saved at %s" % residue_filepath)
if residue_filepath and residue_glance_id:
# export to glance
(image_service, image_id) = glance.get_remote_image_service(
context, instance['image_ref'])
meta_metadata = self._get_snapshot_metadata(
virt_dom, context, instance, residue_glance_id)
update_task_state(task_state=task_states.IMAGE_UPLOADING,
expected_state=task_states.IMAGE_PENDING_UPLOAD)
self._update_to_glance(context, image_service, residue_filepath,
residue_glance_id, meta_metadata)
# clean up
LOG.info(_("VM residue upload complete"), instance=instance)
if residue_filepath and os.path.exists(residue_filepath):
os.remove(residue_filepath)
def cloudlet_base(self, context, instance, vm_name, disk_meta_id,
memory_meta_id, diskhash_meta_id, memoryhash_meta_id,
update_task_state):
"""create base vm and save it to glance
"""
try:
if hasattr(self, "_lookup_by_name"):
# icehouse
virt_dom = self._lookup_by_name(instance['name'])
else:
# kilo
virt_dom = self._host.get_domain(instance)
except exception.InstanceNotFound:
raise exception.InstanceNotRunning(instance_id=instance['uuid'])
# pause VM
self.pause(instance)
(image_service,
image_id) = glance.get_remote_image_service(context,
instance['image_ref'])
disk_metadata = self._get_snapshot_metadata(virt_dom, context,
instance, disk_meta_id)
mem_metadata = self._get_snapshot_metadata(virt_dom, context, instance,
memory_meta_id)
diskhash_metadata = self._get_snapshot_metadata(
virt_dom, context, instance, diskhash_meta_id)
memhash_metadata = self._get_snapshot_metadata(virt_dom, context,
instance,
memoryhash_meta_id)
disk_path = libvirt_utils.find_disk(virt_dom)
source_format = libvirt_utils.get_disk_type(disk_path)
snapshot_name = uuid.uuid4().hex
(state, _max_mem, _mem, _cpus, _t) = virt_dom.info()
state = libvirt_driver.LIBVIRT_POWER_STATE[state]
# creating base vm requires cold snapshotting
snapshot_backend = self.image_backend.snapshot(
disk_path, image_type=source_format)
LOG.info(_("Beginning cold snapshot process"), instance=instance)
# not available at icehouse
# snapshot_backend.snapshot_create()
update_task_state(task_state=task_states.IMAGE_PENDING_UPLOAD,
expected_state=None)
snapshot_directory = libvirt_driver.CONF.libvirt.snapshots_directory
fileutils.ensure_tree(snapshot_directory)
with utils.tempdir(dir=snapshot_directory) as tmpdir:
try:
out_path = os.path.join(tmpdir, snapshot_name)
# At this point, base vm should be "raw" format
snapshot_backend.snapshot_extract(out_path, "raw")
finally:
# snapshotting logic is changed since icehouse.
# : cannot find snapshot_create and snapshot_delete.
# snapshot_extract is replacing these two operations.
# snapshot_backend.snapshot_delete()
LOG.info(_("Snapshot extracted, beginning image upload"),
instance=instance)
# generate memory snapshop and hashlist
basemem_path = os.path.join(tmpdir, snapshot_name + "-mem")
diskhash_path = os.path.join(tmpdir, snapshot_name + "-disk_hash")
memhash_path = os.path.join(tmpdir, snapshot_name + "-mem_hash")
update_task_state(task_state=task_states.IMAGE_UPLOADING,
expected_state=task_states.IMAGE_PENDING_UPLOAD)
synthesis._create_baseVM(self._conn,
virt_dom,
out_path,
basemem_path,
diskhash_path,
memhash_path,
nova_util=libvirt_utils)
self._update_to_glance(context, image_service, out_path,
disk_meta_id, disk_metadata)
LOG.info(_("Base disk upload complete"), instance=instance)
self._update_to_glance(context, image_service, basemem_path,
memory_meta_id, mem_metadata)
LOG.info(_("Base memory image upload complete"), instance=instance)
self._update_to_glance(context, image_service, diskhash_path,
diskhash_meta_id, diskhash_metadata)
LOG.info(_("Base disk upload complete"), instance=instance)
self._update_to_glance(context, image_service, memhash_path,
memoryhash_meta_id, memhash_metadata)
LOG.info(_("Base memory image upload complete"), instance=instance)
