various improvements
This commit is contained in:
parent
0d2a18d1f3
commit
bd4e575a7c
@ -20,13 +20,13 @@ Run `make serve-docs`. See [Development](#development) below.
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- [x] CPU customization (emulation mode, model, vendor, features)
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- [ ] BIOS/UEFI settings
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- [x] Device attaching
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- [ ] Device detaching
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- [x] Device detaching
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- [ ] GPU passthrough
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- [ ] CPU guarantied resource percent support
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- [x] QEMU Guest Agent management
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- [ ] Instance resources usage stats
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- [ ] SSH-keys management
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- [x] Setting user passwords in guest [not tested]
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- [x] Setting user passwords in guest
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- [x] QCOW2 disks support
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- [ ] ZVOL support
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- [ ] Network disks support
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@ -234,13 +234,20 @@ def main(session: Session, args: argparse.Namespace) -> None:
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case 'setmem':
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instance = session.get_instance(args.instance)
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instance.set_memory(args.memory, live=True)
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case 'setpasswd':
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instance = session.get_instance(args.instance)
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instance.set_user_password(
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args.username,
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args.password,
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encrypted=args.encrypted,
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)
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def cli() -> None: # noqa: PLR0915
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"""Parse command line arguments."""
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"""Return command line arguments parser."""
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root = argparse.ArgumentParser(
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prog='compute',
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description='manage compute instances and storage volumes.',
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description='manage compute instances',
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formatter_class=argparse.RawTextHelpFormatter,
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)
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root.add_argument(
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@ -383,13 +390,27 @@ def cli() -> None: # noqa: PLR0915
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setmem.add_argument('instance')
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setmem.add_argument('memory', type=int, help='memory in MiB')
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# Run parser
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# setpasswd subcommand
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setpasswd = subparsers.add_parser(
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'setpasswd',
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help='set user password in guest',
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)
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setpasswd.add_argument('instance')
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setpasswd.add_argument('username')
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setpasswd.add_argument('password')
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setpasswd.add_argument(
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'-e',
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'--encrypted',
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action='store_true',
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default=False,
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help='set it if password is already encrypted',
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)
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args = root.parse_args()
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if args.command is None:
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root.print_help()
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sys.exit()
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# Set logging level
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log_level = args.log_level or os.getenv('CMP_LOG')
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if isinstance(log_level, str) and log_level.lower() in log_levels:
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@ -398,7 +419,6 @@ def cli() -> None: # noqa: PLR0915
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)
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log.debug('CLI started with args: %s', args)
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# Perform actions
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try:
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with Session(args.connect) as session:
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main(session, args)
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@ -37,6 +37,22 @@ class StoragePoolError(ComputeServiceError):
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"""Something went wrong when operating with storage pool."""
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class StoragePoolNotFoundError(StoragePoolError):
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"""Storage pool not found."""
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def __init__(self, msg: str):
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"""Initialise StoragePoolNotFoundError."""
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super().__init__(f"storage pool named '{msg}' not found")
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class VolumeNotFoundError(StoragePoolError):
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"""Storage volume not found."""
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def __init__(self, msg: str):
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"""Initialise VolumeNotFoundError."""
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super().__init__(f"storage volume '{msg}' not found")
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class InstanceError(ComputeServiceError):
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"""Something went wrong while interacting with the domain."""
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@ -78,8 +78,8 @@ class GuestAgent:
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except GuestAgentError:
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return False
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def available_commands(self) -> set[str]:
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"""Return set of available guest agent commands."""
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def get_supported_commands(self) -> set[str]:
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"""Return set of supported guest agent commands."""
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output = self.execute({'execute': 'guest-info', 'arguments': {}})
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return {
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cmd['name']
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@ -94,8 +94,9 @@ class GuestAgent:
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:param commands: List of required commands
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:raise: GuestAgentCommandNotSupportedError
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"""
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supported = self.get_supported_commands()
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for command in commands:
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if command not in self.available_commands():
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if command not in supported:
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raise GuestAgentCommandNotSupportedError(command)
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def guest_exec( # noqa: PLR0913
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@ -13,6 +13,7 @@ from compute.exceptions import (
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GuestAgentCommandNotSupportedError,
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InstanceError,
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)
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from compute.storage import DiskConfig
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from compute.utils import units
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from .guest_agent import GuestAgent
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@ -181,7 +182,7 @@ class InstanceInfo(NamedTuple):
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class DeviceConfig:
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"""Abstract device description class."""
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"""Abstract device config class."""
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class Instance:
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@ -485,6 +486,11 @@ class Instance:
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msg = f'Cannot set memory for instance={self.name} {memory=}: {e}'
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raise InstanceError(msg) from e
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def _get_disk_by_target(self, target: str) -> etree.Element:
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xml = etree.fromstring(self.dump_xml()) # noqa: S320
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child = xml.xpath(f'/domain/devices/disk/target[@dev="{target}"]')
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return child[0].getparent() if child else None
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def attach_device(
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self, device: 'DeviceConfig', *, live: bool = False
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) -> None:
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@ -501,6 +507,13 @@ class Instance:
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)
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else:
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flags = libvirt.VIR_DOMAIN_AFFECT_CONFIG
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if isinstance(device, DiskConfig): # noqa: SIM102
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if self._get_disk_by_target(device.target):
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log.warning(
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"Volume with target '%s' is already attached",
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device.target,
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)
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return
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self.domain.attachDeviceFlags(device.to_xml(), flags=flags)
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def detach_device(
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@ -519,8 +532,48 @@ class Instance:
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)
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else:
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flags = libvirt.VIR_DOMAIN_AFFECT_CONFIG
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if isinstance(device, DiskConfig): # noqa: SIM102
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if self._get_disk_by_target(device.target) is None:
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log.warning(
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"Volume with target '%s' is already detached",
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device.target,
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)
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return
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self.domain.detachDeviceFlags(device.to_xml(), flags=flags)
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def detach_disk(self, name: str) -> None:
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"""
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Detach disk device by target name.
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There is no ``attach_disk()`` method. Use :method:`attach_device`
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with :class:`DiskConfig` as parameter.
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:param name: Disk name e.g. 'vda', 'sda', etc. This name may
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not match the name of the disk inside the guest OS.
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"""
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xml = self._get_disk_by_target(name)
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if xml is None:
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log.warning(
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"Volume with target '%s' is already detached",
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name,
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)
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return
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disk_params = {
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'disk_type': xml.get('type'),
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'source': xml.find('source').get('file'),
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'target': xml.find('target').get('dev'),
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'readonly': False if xml.find('readonly') is None else True, # noqa: SIM211
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}
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for param in disk_params:
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if disk_params[param] is None:
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msg = (
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f"Cannot detach volume with target '{name}': "
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f"parameter '{param}' is not defined in libvirt XML "
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'config on host.'
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)
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raise InstanceError(msg)
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self.detach_device(DiskConfig(**disk_params), live=True)
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def resize_volume(
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self, name: str, capacity: int, unit: units.DataUnit
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) -> None:
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@ -573,7 +626,9 @@ class Instance:
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"""
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raise NotImplementedError
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def set_user_password(self, user: str, password: str) -> None:
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def set_user_password(
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self, user: str, password: str, *, encrypted: bool = False
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) -> None:
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"""
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Set new user password in guest OS.
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@ -581,8 +636,16 @@ class Instance:
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:param user: Username.
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:param password: Password.
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:param encrypted: Set it to True if password is already encrypted.
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Right encryption method depends on guest OS.
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"""
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self.domain.setUserPassword(user, password)
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if not self.guest_agent.is_available():
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raise InstanceError(
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'Cannot change password: guest agent is unavailable'
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)
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self.guest_agent.raise_for_commands(['guest-set-user-password'])
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flags = libvirt.VIR_DOMAIN_PASSWORD_ENCRYPTED if encrypted else 0
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self.domain.setUserPassword(user, password, flags=flags)
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def dump_xml(self, *, inactive: bool = False) -> str:
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"""Return instance XML description."""
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@ -10,7 +10,11 @@ from uuid import uuid4
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import libvirt
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from lxml import etree
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from .exceptions import InstanceNotFoundError, SessionError
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from .exceptions import (
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InstanceNotFoundError,
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SessionError,
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StoragePoolNotFoundError,
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)
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from .instance import Instance, InstanceConfig, InstanceSchema
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from .storage import DiskConfig, StoragePool, VolumeConfig
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from .utils import units
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@ -23,10 +27,14 @@ class Capabilities(NamedTuple):
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"""Store domain capabilities info."""
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arch: str
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virt: str
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virt_type: str
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emulator: str
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machine: str
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max_vcpus: int
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cpu_vendor: str
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cpu_model: str
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cpu_features: dict
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usable_cpus: list[dict]
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class NodeInfo(NamedTuple):
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@ -101,16 +109,47 @@ class Session(AbstractContextManager):
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threads=info[7],
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)
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def _cap_get_usable_cpus(self, xml: etree.Element) -> list[dict]:
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x = xml.xpath('/domainCapabilities/cpu/mode[@name="custom"]')[0]
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cpus = []
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for cpu in x.findall('model'):
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if cpu.get('usable') == 'yes':
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cpus.append( # noqa: PERF401
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{
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'vendor': cpu.get('vendor'),
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'model': cpu.text,
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}
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)
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return cpus
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def _cap_get_cpu_features(self, xml: etree.Element) -> dict:
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x = xml.xpath('/domainCapabilities/cpu/mode[@name="host-model"]')[0]
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require = []
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disable = []
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for feature in x.findall('feature'):
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policy = feature.get('policy')
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name = feature.get('name')
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if policy == 'require':
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require.append(name)
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if policy == 'disable':
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disable.append(name)
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return {'require': require, 'disable': disable}
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def get_capabilities(self) -> Capabilities:
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"""Return capabilities e.g. arch, virt, emulator, etc."""
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prefix = '/domainCapabilities'
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hprefix = f'{prefix}/cpu/mode[@name="host-model"]'
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caps = etree.fromstring(self.connection.getDomainCapabilities()) # noqa: S320
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return Capabilities(
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arch=caps.xpath(f'{prefix}/arch/text()')[0],
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virt=caps.xpath(f'{prefix}/domain/text()')[0],
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virt_type=caps.xpath(f'{prefix}/domain/text()')[0],
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emulator=caps.xpath(f'{prefix}/path/text()')[0],
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machine=caps.xpath(f'{prefix}/machine/text()')[0],
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max_vcpus=int(caps.xpath(f'{prefix}/vcpu/@max')[0]),
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cpu_vendor=caps.xpath(f'{hprefix}/vendor/text()')[0],
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cpu_model=caps.xpath(f'{hprefix}/model/text()')[0],
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cpu_features=self._cap_get_cpu_features(caps),
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usable_cpus=self._cap_get_cpus(caps),
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)
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def create_instance(self, **kwargs: Any) -> Instance:
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@ -169,7 +208,7 @@ class Session(AbstractContextManager):
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volumes_pool = self.get_storage_pool(self.VOLUMES_POOL)
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log.info('Building volume configuration...')
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if not volume.source:
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vol_name = f'{config.name}-{volume.target}-{uuid4()}.qcow2'
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vol_name = f'{uuid4()}.qcow2'
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else:
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vol_name = volume.source
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vol_conf = VolumeConfig(
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@ -196,7 +235,12 @@ class Session(AbstractContextManager):
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volumes_pool.create_volume(vol_conf)
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log.info('Attaching volume to instance...')
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instance.attach_device(
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DiskConfig(path=vol_conf.path, target=volume.target)
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DiskConfig(
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disk_type=volume.type,
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source=vol_conf.path,
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target=volume.target,
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readonly=volume.is_readonly,
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)
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)
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return instance
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@ -204,10 +248,10 @@ class Session(AbstractContextManager):
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"""Get compute instance by name."""
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try:
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return Instance(self.connection.lookupByName(name))
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except libvirt.libvirtError as err:
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if err.get_error_code() == libvirt.VIR_ERR_NO_DOMAIN:
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raise InstanceNotFoundError(name) from err
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raise SessionError(err) from err
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except libvirt.libvirtError as e:
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if e.get_error_code() == libvirt.VIR_ERR_NO_DOMAIN:
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raise InstanceNotFoundError(name) from e
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raise SessionError(e) from e
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def list_instances(self) -> list[Instance]:
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"""List all instances."""
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@ -215,8 +259,12 @@ class Session(AbstractContextManager):
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def get_storage_pool(self, name: str) -> StoragePool:
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"""Get storage pool by name."""
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# TODO @ge: handle Storage pool not found error
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try:
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return StoragePool(self.connection.storagePoolLookupByName(name))
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except libvirt.libvirtError as e:
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if e.get_error_code() == libvirt.VIR_ERR_NO_STORAGE_POOL:
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raise StoragePoolNotFoundError(name) from e
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raise SessionError(e) from e
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def list_storage_pools(self) -> list[StoragePool]:
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"""List all strage pools."""
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@ -7,7 +7,7 @@ from typing import NamedTuple
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import libvirt
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from lxml import etree
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from compute.exceptions import StoragePoolError
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from compute.exceptions import StoragePoolError, VolumeNotFoundError
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from .volume import Volume, VolumeConfig
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@ -99,13 +99,8 @@ class StoragePool:
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vol = self.pool.storageVolLookupByName(name)
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return Volume(self.pool, vol)
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except libvirt.libvirtError as e:
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# TODO @ge: Raise VolumeNotFoundError instead
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if (
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e.get_error_domain() == libvirt.VIR_FROM_STORAGE
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or e.get_error_code() == libvirt.VIR_ERR_NO_STORAGE_VOL
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):
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log.exception(e.get_error_message())
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return None
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if e.get_error_code() == libvirt.VIR_ERR_NO_STORAGE_VOL:
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raise VolumeNotFoundError(name) from e
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log.exception('unexpected error from libvirt')
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raise StoragePoolError(e) from e
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|
@ -56,15 +56,17 @@ class DiskConfig:
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to compute instances.
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"""
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disk_type: str
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source: str | Path
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target: str
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path: str
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readonly: bool = False
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def to_xml(self) -> str:
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"""Return XML config for libvirt."""
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xml = E.disk(type='file', device='disk')
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xml = E.disk(type=self.disk_type, device='disk')
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xml.append(E.driver(name='qemu', type='qcow2', cache='writethrough'))
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xml.append(E.source(file=self.path))
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if self.disk_type == 'file':
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xml.append(E.source(file=str(self.source)))
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xml.append(E.target(dev=self.target, bus='virtio'))
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if self.readonly:
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xml.append(E.readonly())
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|
@ -1,12 +1,12 @@
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Compute
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=======
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Compute-instance management library.
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Compute instances management library.
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.. toctree::
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:maxdepth: 1
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python-api/index
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pyapi/index
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Indices and tables
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------------------
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|
227
dom.xml
Normal file
227
dom.xml
Normal file
@ -0,0 +1,227 @@
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<domain type='kvm' id='1'>
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<name>debian12</name>
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<uuid>721cf06b-879a-4f4e-875b-b3d0382328ef</uuid>
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<metadata>
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<libosinfo:libosinfo xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0">
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<libosinfo:os id="http://debian.org/debian/12"/>
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</libosinfo:libosinfo>
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</metadata>
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<memory unit='KiB'>4194304</memory>
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<currentMemory unit='KiB'>4194304</currentMemory>
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<vcpu placement='static'>4</vcpu>
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<resource>
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<partition>/machine</partition>
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</resource>
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<os>
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<type arch='x86_64' machine='pc-q35-8.0'>hvm</type>
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<boot dev='hd'/>
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</os>
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<features>
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<acpi/>
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<apic/>
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<vmport state='off'/>
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</features>
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<cpu mode='host-passthrough' check='none' migratable='on'/>
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<clock offset='utc'>
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<timer name='rtc' tickpolicy='catchup'/>
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<timer name='pit' tickpolicy='delay'/>
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<timer name='hpet' present='no'/>
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</clock>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>destroy</on_crash>
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<pm>
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||||
<suspend-to-mem enabled='no'/>
|
||||
<suspend-to-disk enabled='no'/>
|
||||
</pm>
|
||||
<devices>
|
||||
<emulator>/usr/bin/qemu-system-x86_64</emulator>
|
||||
<disk type='file' device='disk'>
|
||||
<driver name='qemu' type='qcow2' discard='unmap'/>
|
||||
<source file='/var/lib/libvirt/images/debian12.qcow2' index='1'/>
|
||||
<backingStore/>
|
||||
<target dev='vda' bus='virtio'/>
|
||||
<alias name='virtio-disk0'/>
|
||||
<address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
|
||||
</disk>
|
||||
<controller type='usb' index='0' model='qemu-xhci' ports='15'>
|
||||
<alias name='usb'/>
|
||||
<address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
|
||||
</controller>
|
||||
<controller type='pci' index='0' model='pcie-root'>
|
||||
<alias name='pcie.0'/>
|
||||
</controller>
|
||||
<controller type='pci' index='1' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='1' port='0x10'/>
|
||||
<alias name='pci.1'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0' multifunction='on'/>
|
||||
</controller>
|
||||
<controller type='pci' index='2' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='2' port='0x11'/>
|
||||
<alias name='pci.2'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x1'/>
|
||||
</controller>
|
||||
<controller type='pci' index='3' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='3' port='0x12'/>
|
||||
<alias name='pci.3'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x2'/>
|
||||
</controller>
|
||||
<controller type='pci' index='4' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='4' port='0x13'/>
|
||||
<alias name='pci.4'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x3'/>
|
||||
</controller>
|
||||
<controller type='pci' index='5' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='5' port='0x14'/>
|
||||
<alias name='pci.5'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x4'/>
|
||||
</controller>
|
||||
<controller type='pci' index='6' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='6' port='0x15'/>
|
||||
<alias name='pci.6'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x5'/>
|
||||
</controller>
|
||||
<controller type='pci' index='7' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='7' port='0x16'/>
|
||||
<alias name='pci.7'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x6'/>
|
||||
</controller>
|
||||
<controller type='pci' index='8' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='8' port='0x17'/>
|
||||
<alias name='pci.8'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x7'/>
|
||||
</controller>
|
||||
<controller type='pci' index='9' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='9' port='0x18'/>
|
||||
<alias name='pci.9'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0' multifunction='on'/>
|
||||
</controller>
|
||||
<controller type='pci' index='10' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='10' port='0x19'/>
|
||||
<alias name='pci.10'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x1'/>
|
||||
</controller>
|
||||
<controller type='pci' index='11' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='11' port='0x1a'/>
|
||||
<alias name='pci.11'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x2'/>
|
||||
</controller>
|
||||
<controller type='pci' index='12' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='12' port='0x1b'/>
|
||||
<alias name='pci.12'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x3'/>
|
||||
</controller>
|
||||
<controller type='pci' index='13' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='13' port='0x1c'/>
|
||||
<alias name='pci.13'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x4'/>
|
||||
</controller>
|
||||
<controller type='pci' index='14' model='pcie-root-port'>
|
||||
<model name='pcie-root-port'/>
|
||||
<target chassis='14' port='0x1d'/>
|
||||
<alias name='pci.14'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x5'/>
|
||||
</controller>
|
||||
<controller type='sata' index='0'>
|
||||
<alias name='ide'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
|
||||
</controller>
|
||||
<controller type='virtio-serial' index='0'>
|
||||
<alias name='virtio-serial0'/>
|
||||
<address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
|
||||
</controller>
|
||||
<interface type='network'>
|
||||
<mac address='52:54:00:9b:d7:98'/>
|
||||
<source network='default' portid='98463b3d-9ab1-4d7f-9bf4-4ce3df078509' bridge='virbr0'/>
|
||||
<target dev='vnet0'/>
|
||||
<model type='virtio'/>
|
||||
<alias name='net0'/>
|
||||
<address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
|
||||
</interface>
|
||||
<serial type='pty'>
|
||||
<source path='/dev/pts/2'/>
|
||||
<target type='isa-serial' port='0'>
|
||||
<model name='isa-serial'/>
|
||||
</target>
|
||||
<alias name='serial0'/>
|
||||
</serial>
|
||||
<console type='pty' tty='/dev/pts/2'>
|
||||
<source path='/dev/pts/2'/>
|
||||
<target type='serial' port='0'/>
|
||||
<alias name='serial0'/>
|
||||
</console>
|
||||
<channel type='unix'>
|
||||
<source mode='bind' path='/run/libvirt/qemu/channel/1-debian12/org.qemu.guest_agent.0'/>
|
||||
<target type='virtio' name='org.qemu.guest_agent.0' state='connected'/>
|
||||
<alias name='channel0'/>
|
||||
<address type='virtio-serial' controller='0' bus='0' port='1'/>
|
||||
</channel>
|
||||
<channel type='spicevmc'>
|
||||
<target type='virtio' name='com.redhat.spice.0' state='disconnected'/>
|
||||
<alias name='channel1'/>
|
||||
<address type='virtio-serial' controller='0' bus='0' port='2'/>
|
||||
</channel>
|
||||
<input type='tablet' bus='usb'>
|
||||
<alias name='input0'/>
|
||||
<address type='usb' bus='0' port='1'/>
|
||||
</input>
|
||||
<input type='mouse' bus='ps2'>
|
||||
<alias name='input1'/>
|
||||
</input>
|
||||
<input type='keyboard' bus='ps2'>
|
||||
<alias name='input2'/>
|
||||
</input>
|
||||
<graphics type='spice' port='5900' autoport='yes' listen='127.0.0.1'>
|
||||
<listen type='address' address='127.0.0.1'/>
|
||||
<image compression='off'/>
|
||||
</graphics>
|
||||
<sound model='ich9'>
|
||||
<alias name='sound0'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x1b' function='0x0'/>
|
||||
</sound>
|
||||
<audio id='1' type='spice'/>
|
||||
<video>
|
||||
<model type='virtio' heads='1' primary='yes'/>
|
||||
<alias name='video0'/>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
|
||||
</video>
|
||||
<redirdev bus='usb' type='spicevmc'>
|
||||
<alias name='redir0'/>
|
||||
<address type='usb' bus='0' port='2'/>
|
||||
</redirdev>
|
||||
<redirdev bus='usb' type='spicevmc'>
|
||||
<alias name='redir1'/>
|
||||
<address type='usb' bus='0' port='3'/>
|
||||
</redirdev>
|
||||
<watchdog model='itco' action='reset'>
|
||||
<alias name='watchdog0'/>
|
||||
</watchdog>
|
||||
<memballoon model='virtio'>
|
||||
<alias name='balloon0'/>
|
||||
<address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
|
||||
</memballoon>
|
||||
<rng model='virtio'>
|
||||
<backend model='random'>/dev/urandom</backend>
|
||||
<alias name='rng0'/>
|
||||
<address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
|
||||
</rng>
|
||||
</devices>
|
||||
<seclabel type='dynamic' model='dac' relabel='yes'>
|
||||
<label>+961:+961</label>
|
||||
<imagelabel>+961:+961</imagelabel>
|
||||
</seclabel>
|
||||
</domain>
|
||||
|
14
packaging/completion.bash
Executable file
14
packaging/completion.bash
Executable file
@ -0,0 +1,14 @@
|
||||
_cmp_get_domains()
|
||||
{
|
||||
for file in /etc/libvirt/qemu/*.xml; do
|
||||
nodir="${file##*/}"
|
||||
printf '%s\n' "${nodir//\.xml}"
|
||||
done
|
||||
}
|
||||
|
||||
_compute()
|
||||
{
|
||||
:
|
||||
}
|
||||
|
||||
complete -o filenames -F _compute compute
|
30
xmltool.py
Normal file
30
xmltool.py
Normal file
@ -0,0 +1,30 @@
|
||||
from pathlib import Path
|
||||
|
||||
from lxml import etree
|
||||
|
||||
from compute.storage import DiskConfig
|
||||
|
||||
|
||||
|
||||
with Path('./dom.xml').open('r') as f:
|
||||
xml = etree.fromstring(f.read())
|
||||
|
||||
|
||||
|
||||
def get_disk_by_target(name):
|
||||
disk_tgt = xml.xpath('/domain/devices/disk/target[@dev="vda"]')
|
||||
|
||||
|
||||
|
||||
def get_disks(xml: etree.Element) -> list[etree.Element]:
|
||||
xmldisks = xml.findall('devices/disk')
|
||||
for xmldisk in xmldisks:
|
||||
disk_config = DiskConfig(
|
||||
type=xmldisk.get('type'),
|
||||
device=xmldisk.get('device'),
|
||||
target=xmldisk.find('target').get('dev'),
|
||||
path=xmldisk.find('source').get('file'),
|
||||
)
|
||||
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user