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#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
DRAC inspection interface
"""
from ironic_lib import metrics_utils
from oslo_log import log as logging
from oslo_utils import importutils
from oslo_utils import units
from ironic.common import exception
from ironic.common.i18n import _
from ironic.common import states
from ironic.drivers import base
from ironic.drivers.modules.drac import common as drac_common
from ironic import objects
drac_exceptions = importutils.try_import('dracclient.exceptions')
LOG = logging.getLogger(__name__)
METRICS = metrics_utils.get_metrics_logger(__name__)
class DracInspect(base.InspectInterface):
def get_properties(self):
"""Return the properties of the interface.
:returns: dictionary of <property name>:<property description> entries.
"""
return drac_common.COMMON_PROPERTIES
@METRICS.timer('DracInspect.validate')
def validate(self, task):
"""Validate the driver-specific info supplied.
This method validates whether the 'driver_info' property of the
supplied node contains the required information for this driver to
manage the node.
:param task: a TaskManager instance containing the node to act on.
:raises: InvalidParameterValue if required driver_info attribute
is missing or invalid on the node.
"""
return drac_common.parse_driver_info(task.node)
@METRICS.timer('DracInspect.inspect_hardware')
def inspect_hardware(self, task):
"""Inspect hardware.
Inspect hardware to obtain the essential & additional hardware
properties.
:param task: a TaskManager instance containing the node to act on.
:raises: HardwareInspectionFailure, if unable to get essential
hardware properties.
:returns: states.MANAGEABLE
"""
node = task.node
client = drac_common.get_drac_client(node)
properties = {}
try:
properties['memory_mb'] = sum(
[memory.size_mb for memory in client.list_memory()])
cpus = client.list_cpus()
if cpus:
properties['cpus'] = sum(
[self._calculate_cpus(cpu) for cpu in cpus])
properties['cpu_arch'] = 'x86_64' if cpus[0].arch64 else 'x86'
virtual_disks = client.list_virtual_disks()
root_disk = self._guess_root_disk(virtual_disks)
if root_disk:
properties['local_gb'] = int(root_disk.size_mb / units.Ki)
else:
physical_disks = client.list_physical_disks()
root_disk = self._guess_root_disk(physical_disks)
if root_disk:
properties['local_gb'] = int(
root_disk.size_mb / units.Ki)
except drac_exceptions.BaseClientException as exc:
LOG.error('DRAC driver failed to introspect node '
'%(node_uuid)s. Reason: %(error)s.',
{'node_uuid': node.uuid, 'error': exc})
raise exception.HardwareInspectionFailure(error=exc)
valid_keys = self.ESSENTIAL_PROPERTIES
missing_keys = valid_keys - set(properties)
if missing_keys:
error = (_('Failed to discover the following properties: '
'%(missing_keys)s') %
{'missing_keys': ', '.join(missing_keys)})
raise exception.HardwareInspectionFailure(error=error)
node.properties = dict(node.properties, **properties)
node.save()
try:
nics = client.list_nics()
except drac_exceptions.BaseClientException as exc:
LOG.error('DRAC driver failed to introspect node '
'%(node_uuid)s. Reason: %(error)s.',
{'node_uuid': node.uuid, 'error': exc})
raise exception.HardwareInspectionFailure(error=exc)
for nic in nics:
try:
port = objects.Port(task.context, address=nic.mac,
node_id=node.id)
port.create()
LOG.info('Port created with MAC address %(mac)s '
'for node %(node_uuid)s during inspection',
{'mac': nic.mac, 'node_uuid': node.uuid})
except exception.MACAlreadyExists:
LOG.warning('Failed to create a port with MAC address '
'%(mac)s when inspecting the node '
'%(node_uuid)s because the address is already '
'registered',
{'mac': nic.mac, 'node_uuid': node.uuid})
LOG.info('Node %s successfully inspected.', node.uuid)
return states.MANAGEABLE
def _guess_root_disk(self, disks, min_size_required_mb=4 * units.Ki):
"""Find a root disk.
:param disks: list of disks.
:param min_size_required_mb: minimum required size of the root disk in
megabytes.
:returns: root disk.
"""
disks.sort(key=lambda disk: disk.size_mb)
for disk in disks:
if disk.size_mb >= min_size_required_mb:
return disk
def _calculate_cpus(self, cpu):
"""Find actual CPU count.
:param cpu: Pass cpu.
:returns: returns total cpu count.
"""
if cpu.ht_enabled:
return cpu.cores * 2
else:
return cpu.cores
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