def _replace_device(self):
"""Replace the nonexistent device with a new one.
If something has changed but the device does not exist,
there is no need to schedule actions on the device. It
is only necessary to create a new device object which
reflects the current choices.
"""
log.debug("Replacing a nonexistent device.")
device = self._device
if self._should_remove_device():
# Remove the current device.
destroy_device(self._storage, device)
# We don't want to pass the device if we removed it.
self._request.device_spec = ""
# Create a new device.
log.debug("Creating a new device.")
arguments = get_device_factory_arguments(self._storage, self._request)
device = self._storage.factory_device(**arguments)
# Update the device.
self._device = device
def _add_device(self,
storage,
request: DeviceFactoryRequest,
use_existing_container=False):
"""Add a device to the storage model.
:param storage: an instance of Blivet
:param request: a device factory request
:param use_existing_container: should we use an existing container?
:raise: StorageError if the device cannot be created
"""
# Create the device factory.
factory = devicefactory.get_device_factory(
storage,
device_type=request.device_type,
size=Size(request.device_size) if request.device_size else None)
# Find a container.
container = factory.get_container(
allow_existing=use_existing_container)
if use_existing_container and not container:
raise StorageError("No existing container found.")
# Update the device info.
if container:
# Don't override user-initiated changes to a defined container.
request.disks = [d.name for d in container.disks]
request.container_encrypted = container.encrypted
request.container_raid_level = get_device_raid_level_name(
container)
request.container_size_policy = get_container_size_policy(
container)
# The existing container has a name.
if use_existing_container:
request.container_name = container.name
# The container is already encrypted
if container.encrypted:
request.device_encrypted = False
# Create the device.
dev_info = get_device_factory_arguments(storage, request)
try:
storage.factory_device(**dev_info)
except StorageError as e:
log.error("The device creation has failed: %s", e)
raise
except OverflowError as e:
log.error("Invalid partition size set: %s", str(e))
raise StorageError(
"Invalid partition size set. Use a valid integer.") from None
def get_device_factory_arguments_test(self):
"""Test get_device_factory_arguments."""
dev1 = StorageDevice("dev1")
self._add_device(dev1)
dev2 = StorageDevice("dev2")
self._add_device(dev2)
dev3 = StorageDevice("dev3")
self._add_device(dev3)
request = DeviceFactoryRequest()
request.device_spec = "dev3"
request.disks = ["dev1", "dev2"]
request.device_name = "dev3"
request.device_type = devicefactory.DEVICE_TYPE_LVM_THINP
request.device_size = Size("10 GiB").get_bytes()
request.mount_point = "/"
request.format_type = "xfs"
request.label = "root"
request.device_encrypted = True
request.luks_version = "luks1"
request.device_raid_level = "raid1"
self.assertEqual(utils.get_device_factory_arguments(self.storage, request), {
"device": dev3,
"disks": [dev1, dev2],
"device_type": devicefactory.DEVICE_TYPE_LVM_THINP,
"device_name": "dev3",
"size": Size("10 GiB"),
"mountpoint": "/",
"fstype": "xfs",
"label": "root",
"encrypted": True,
"luks_version": "luks1",
"raid_level": raid.RAID1,
"container_name": None,
"container_size": devicefactory.SIZE_POLICY_AUTO,
"container_raid_level": None,
"container_encrypted": False
})
request = DeviceFactoryRequest()
request.device_spec = "dev3"
request.disks = ["dev1", "dev2"]
request.device_name = "dev3"
request.container_name = "container1"
request.container_size_policy = Size("10 GiB").get_bytes()
request.container_encrypted = True
request.container_raid_level = "raid1"
self.assertEqual(utils.get_device_factory_arguments(self.storage, request), {
"device": dev3,
"disks": [dev1, dev2],
"device_type": devicefactory.DEVICE_TYPE_LVM,
"device_name": "dev3",
"size": None,
"mountpoint": None,
"fstype": None,
"label": None,
"encrypted": False,
"luks_version": None,
"raid_level": None,
"container_name": "container1",
"container_size": Size("10 GiB"),
"container_raid_level": raid.RAID1,
"container_encrypted": True
})