本文整理汇总了Python中nova.block_device.get_root_bdm函数的典型用法代码示例。如果您正苦于以下问题:Python get_root_bdm函数的具体用法?Python get_root_bdm怎么用?Python get_root_bdm使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了get_root_bdm函数的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_get_root_bdm
def test_get_root_bdm(self):
root_bdm = {'device_name': 'vda', 'boot_index': 0}
bdms = [root_bdm,
{'device_name': 'vdb', 'boot_index': 1},
{'device_name': 'vdc', 'boot_index': -1},
{'device_name': 'vdd'}]
self.assertEqual(root_bdm, block_device.get_root_bdm(bdms))
self.assertEqual(root_bdm, block_device.get_root_bdm([bdms[0]]))
self.assertIsNone(block_device.get_root_bdm(bdms[1:]))
self.assertIsNone(block_device.get_root_bdm(bdms[2:]))
self.assertIsNone(block_device.get_root_bdm(bdms[3:]))
self.assertIsNone(block_device.get_root_bdm([]))
示例2: test_get_root_bdm
def test_get_root_bdm(self):
root_bdm = {"device_name": "vda", "boot_index": 0}
bdms = [
root_bdm,
{"device_name": "vdb", "boot_index": 1},
{"device_name": "vdc", "boot_index": -1},
{"device_name": "vdd"},
]
self.assertEqual(root_bdm, block_device.get_root_bdm(bdms))
self.assertEqual(root_bdm, block_device.get_root_bdm([bdms[0]]))
self.assertIsNone(block_device.get_root_bdm(bdms[1:]))
self.assertIsNone(block_device.get_root_bdm(bdms[2:]))
self.assertIsNone(block_device.get_root_bdm(bdms[3:]))
self.assertIsNone(block_device.get_root_bdm([]))
示例3: get_disk_mapping
def get_disk_mapping(virt_type, instance,
disk_bus, cdrom_bus,
block_device_info=None,
image_meta=None, rescue=False):
"""Determine how to map default disks to the virtual machine.
This is about figuring out whether the default 'disk',
'disk.local', 'disk.swap' and 'disk.config' images have
been overridden by the block device mapping.
Returns the guest disk mapping for the devices.
"""
inst_type = flavors.extract_flavor(instance)
mapping = {}
pre_assigned_device_names = \
[block_device.strip_dev(get_device_name(bdm)) for bdm in itertools.chain(
driver.block_device_info_get_ephemerals(block_device_info),
[driver.block_device_info_get_swap(block_device_info)],
driver.block_device_info_get_mapping(block_device_info))
if get_device_name(bdm)]
if rescue:
rescue_info = get_next_disk_info(mapping,
disk_bus, boot_index=1)
mapping['disk.rescue'] = rescue_info
mapping['root'] = rescue_info
os_info = get_next_disk_info(mapping,
disk_bus)
mapping['disk'] = os_info
return mapping
# NOTE (ndipanov): root_bdm can be None when we boot from image
# as there is no driver represenation of local targeted images
# and they will not be in block_device_info list.
root_bdm = block_device.get_root_bdm(
driver.block_device_info_get_mapping(block_device_info))
root_device_name = block_device.strip_dev(
driver.block_device_info_get_root(block_device_info))
root_info = get_root_info(virt_type, image_meta, root_bdm,
disk_bus, cdrom_bus, root_device_name)
mapping['root'] = root_info
# NOTE (ndipanov): This implicitly relies on image->local BDMs not
# being considered in the driver layer - so missing
# bdm with boot_index 0 means - use image, unless it was
# overridden. This can happen when using legacy syntax and
# no root_device_name is set on the instance.
if not root_bdm and not block_device.volume_in_mapping(root_info['dev'],
block_device_info):
mapping['disk'] = root_info
default_eph = has_default_ephemeral(instance, disk_bus, block_device_info,
mapping)
if default_eph:
mapping['disk.local'] = default_eph
for idx, eph in enumerate(driver.block_device_info_get_ephemerals(
block_device_info)):
eph_info = get_info_from_bdm(
virt_type, eph, mapping, disk_bus,
assigned_devices=pre_assigned_device_names)
mapping[get_eph_disk(idx)] = eph_info
update_bdm(eph, eph_info)
swap = driver.block_device_info_get_swap(block_device_info)
if swap and swap.get('swap_size', 0) > 0:
swap_info = get_info_from_bdm(virt_type, swap, mapping, disk_bus)
mapping['disk.swap'] = swap_info
update_bdm(swap, swap_info)
elif inst_type['swap'] > 0:
swap_info = get_next_disk_info(mapping,
disk_bus)
if not block_device.volume_in_mapping(swap_info['dev'],
block_device_info):
mapping['disk.swap'] = swap_info
block_device_mapping = driver.block_device_info_get_mapping(
block_device_info)
for vol in block_device_mapping:
vol_info = get_info_from_bdm(
virt_type, vol, mapping,
assigned_devices=pre_assigned_device_names)
mapping[block_device.prepend_dev(vol_info['dev'])] = vol_info
update_bdm(vol, vol_info)
if configdrive.required_by(instance):
device_type = get_config_drive_type()
disk_bus = get_disk_bus_for_device_type(virt_type,
image_meta,
device_type)
config_info = get_next_disk_info(mapping,
disk_bus,
device_type,
#.........这里部分代码省略.........