/usr/lib/python3/dist-packages/provisioningserver/drivers/power/virsh.py is in python3-maas-provisioningserver 2.4.0~beta2-6865-gec43e47e6-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# GNU Affero General Public License version 3 (see the file LICENSE).
"""Virsh Power Driver."""
__all__ = []
from provisioningserver.drivers import (
IP_EXTRACTOR_PATTERNS,
make_ip_extractor,
make_setting_field,
SETTING_SCOPE,
)
from provisioningserver.drivers.hardware.virsh import (
power_control_virsh,
power_state_virsh,
)
from provisioningserver.drivers.power import PowerDriver
from provisioningserver.utils import shell
REQUIRED_PACKAGES = [["virsh", "libvirt-clients"],
["virt-login-shell", "libvirt-clients"]]
def extract_virsh_parameters(context):
poweraddr = context.get('power_address')
machine = context.get('power_id')
password = context.get('power_pass')
return poweraddr, machine, password
class VirshPowerDriver(PowerDriver):
name = 'virsh'
description = "Virsh (virtual systems)"
settings = [
make_setting_field('power_address', "Power address", required=True),
make_setting_field(
'power_id', "Power ID", scope=SETTING_SCOPE.NODE,
required=True),
make_setting_field(
'power_pass', "Power password (optional)",
required=False, field_type='password'),
]
ip_extractor = make_ip_extractor(
'power_address', IP_EXTRACTOR_PATTERNS.URL)
def detect_missing_packages(self):
missing_packages = set()
for binary, package in REQUIRED_PACKAGES:
if not shell.has_command_available(binary):
missing_packages.add(package)
return list(missing_packages)
def power_on(self, system_id, context):
"""Power on Virsh node."""
power_change = 'on'
poweraddr, machine, password = extract_virsh_parameters(context)
power_control_virsh(
poweraddr, machine, power_change, password)
def power_off(self, system_id, context):
"""Power off Virsh node."""
power_change = 'off'
poweraddr, machine, password = extract_virsh_parameters(context)
power_control_virsh(
poweraddr, machine, power_change, password)
def power_query(self, system_id, context):
"""Power query Virsh node."""
poweraddr, machine, password = extract_virsh_parameters(context)
return power_state_virsh(poweraddr, machine, password)
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