def default_device_names(virt_type, context, instance, root_device_name,
ephemerals, swap, block_device_mapping,
image_meta):
block_device_info = {
'root_device_name': root_device_name,
'swap': driver_block_device.get_swap(
driver_block_device.convert_swap(swap)),
'ephemerals': driver_block_device.convert_ephemerals(ephemerals),
'block_device_mapping': (
driver_block_device.convert_volumes(
block_device_mapping) +
driver_block_device.convert_snapshots(
block_device_mapping) +
driver_block_device.convert_blanks(
block_device_mapping))
}
get_disk_info(virt_type, instance, image_meta, block_device_info)
for driver_bdm in itertools.chain(block_device_info['ephemerals'],
[block_device_info['swap']] if
block_device_info['swap'] else [],
block_device_info['block_device_mapping']):
driver_bdm.save()
def _list_running_instances(self, context, all_instances):
"""List running instances (on all compute nodes).
This method returns a dictionary with the following keys:
- used_images
- image_popularity
- instance_names
"""
used_images = {}
image_popularity = {}
instance_names = set()
used_swap_images = set()
for instance in all_instances:
# NOTE(mikal): "instance name" here means "the name of a directory
# which might contain an instance" and therefore needs to include
# historical permutations as well as the current one.
instance_names.add(instance.name)
instance_names.add(instance.uuid)
if instance.task_state in self.resize_states or instance.vm_state == vm_states.RESIZED:
instance_names.add(instance.name + "_resize")
instance_names.add(instance.uuid + "_resize")
for image_key in ["image_ref", "kernel_id", "ramdisk_id"]:
image_ref_str = getattr(instance, image_key)
if image_ref_str is None:
continue
local, remote, insts = used_images.get(image_ref_str, (0, 0, []))
if instance.host == CONF.host:
local += 1
else:
remote += 1
insts.append(instance.name)
used_images[image_ref_str] = (local, remote, insts)
image_popularity.setdefault(image_ref_str, 0)
image_popularity[image_ref_str] += 1
gb = objects.BlockDeviceMappingList.get_by_instance_uuid
bdms = gb(context, instance.uuid)
if bdms:
swap = driver_block_device.convert_swap(bdms)
if swap:
swap_image = "swap_" + str(swap[0]["swap_size"])
used_swap_images.add(swap_image)
return {
"used_images": used_images,
"image_popularity": image_popularity,
"instance_names": instance_names,
"used_swap_images": used_swap_images,
}
def _list_running_instances(self, context, all_instances):
"""List running instances (on all compute nodes).
This method returns a dictionary with the following keys:
- used_images
- image_popularity
- instance_names
"""
used_images = {}
image_popularity = {}
instance_names = set()
used_swap_images = set()
for instance in all_instances:
# NOTE(mikal): "instance name" here means "the name of a directory
# which might contain an instance" and therefore needs to include
# historical permutations as well as the current one.
instance_names.add(instance.name)
instance_names.add(instance.uuid)
if (instance.task_state in self.resize_states or
instance.vm_state == vm_states.RESIZED):
instance_names.add(instance.name + '_resize')
instance_names.add(instance.uuid + '_resize')
for image_key in ['image_ref', 'kernel_id', 'ramdisk_id']:
image_ref_str = getattr(instance, image_key)
if image_ref_str is None:
continue
local, remote, insts = used_images.get(image_ref_str,
(0, 0, []))
if instance.host == CONF.host:
local += 1
else:
remote += 1
insts.append(instance.name)
used_images[image_ref_str] = (local, remote, insts)
image_popularity.setdefault(image_ref_str, 0)
image_popularity[image_ref_str] += 1
gb = objects.BlockDeviceMappingList.get_by_instance_uuid
bdms = gb(context, instance.uuid)
if bdms:
swap = driver_block_device.convert_swap(bdms)
if swap:
swap_image = 'swap_' + str(swap[0]['swap_size'])
used_swap_images.add(swap_image)
return {'used_images': used_images,
'image_popularity': image_popularity,
'instance_names': instance_names,
'used_swap_images': used_swap_images}
def default_device_names(virt_type, context, instance, root_device_name,
ephemerals, swap, block_device_mapping, image_meta):
block_device_info = {
'root_device_name':
root_device_name,
'swap':
driver_block_device.get_swap(driver_block_device.convert_swap(swap)),
'ephemerals':
driver_block_device.convert_ephemerals(ephemerals),
'block_device_mapping':
(driver_block_device.convert_volumes(block_device_mapping) +
driver_block_device.convert_snapshots(block_device_mapping) +
driver_block_device.convert_blanks(block_device_mapping))
}
get_disk_info(virt_type, instance, image_meta, block_device_info)
for driver_bdm in itertools.chain(
block_device_info['ephemerals'],
[block_device_info['swap']] if block_device_info['swap'] else [],
block_device_info['block_device_mapping']):
driver_bdm.save()
