251 lines
9.5 KiB
Python
251 lines
9.5 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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DRAC inspection interface
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"""
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from ironic_lib import metrics_utils
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from oslo_log import log as logging
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from oslo_utils import importutils
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from oslo_utils import units
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from ironic.common import exception
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from ironic.common.i18n import _
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from ironic.common import states
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from ironic.drivers import base
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from ironic.drivers.modules.drac import common as drac_common
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from ironic import objects
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drac_exceptions = importutils.try_import('dracclient.exceptions')
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drac_utils = importutils.try_import('dracclient.utils')
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DCIM_NICEnumeration = ('http://schemas.dell.com/wbem/wscim/1/cim-schema/2/'
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'DCIM_NICEnumeration') # noqa
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NS_WSMAN = 'http://schemas.dmtf.org/wbem/wsman/1/wsman.xsd'
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LOG = logging.getLogger(__name__)
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METRICS = metrics_utils.get_metrics_logger(__name__)
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class DracInspect(base.InspectInterface):
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def get_properties(self):
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"""Return the properties of the interface.
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:returns: dictionary of <property name>:<property description> entries.
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"""
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return drac_common.COMMON_PROPERTIES
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@METRICS.timer('DracInspect.validate')
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def validate(self, task):
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"""Validate the driver-specific info supplied.
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This method validates whether the 'driver_info' property of the
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supplied node contains the required information for this driver to
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manage the node.
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:param task: a TaskManager instance containing the node to act on.
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:raises: InvalidParameterValue if required driver_info attribute
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is missing or invalid on the node.
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"""
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return drac_common.parse_driver_info(task.node)
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@METRICS.timer('DracInspect.inspect_hardware')
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def inspect_hardware(self, task):
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"""Inspect hardware.
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Inspect hardware to obtain the essential & additional hardware
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properties.
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:param task: a TaskManager instance containing the node to act on.
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:raises: HardwareInspectionFailure, if unable to get essential
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hardware properties.
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:returns: states.MANAGEABLE
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"""
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node = task.node
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client = drac_common.get_drac_client(node)
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properties = {}
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try:
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properties['memory_mb'] = sum(
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[memory.size_mb for memory in client.list_memory()])
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cpus = client.list_cpus()
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if cpus:
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properties['cpus'] = sum(
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[self._calculate_cpus(cpu) for cpu in cpus])
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properties['cpu_arch'] = 'x86_64' if cpus[0].arch64 else 'x86'
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virtual_disks = client.list_virtual_disks()
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root_disk = self._guess_root_disk(virtual_disks)
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if root_disk:
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properties['local_gb'] = int(root_disk.size_mb / units.Ki)
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else:
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physical_disks = client.list_physical_disks()
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root_disk = self._guess_root_disk(physical_disks)
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if root_disk:
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properties['local_gb'] = int(
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root_disk.size_mb / units.Ki)
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except drac_exceptions.BaseClientException as exc:
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LOG.error('DRAC driver failed to introspect node '
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'%(node_uuid)s. Reason: %(error)s.',
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{'node_uuid': node.uuid, 'error': exc})
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raise exception.HardwareInspectionFailure(error=exc)
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valid_keys = self.ESSENTIAL_PROPERTIES
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missing_keys = valid_keys - set(properties)
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if missing_keys:
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error = (_('Failed to discover the following properties: '
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'%(missing_keys)s') %
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{'missing_keys': ', '.join(missing_keys)})
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raise exception.HardwareInspectionFailure(error=error)
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node.properties = dict(node.properties, **properties)
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node.save()
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try:
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nics = client.list_nics()
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except drac_exceptions.BaseClientException as exc:
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LOG.error('DRAC driver failed to introspect node '
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'%(node_uuid)s. Reason: %(error)s.',
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{'node_uuid': node.uuid, 'error': exc})
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raise exception.HardwareInspectionFailure(error=exc)
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pxe_dev_nics = self._get_pxe_dev_nics(client, nics, node)
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if not pxe_dev_nics:
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LOG.warning('No PXE enabled NIC was found for node '
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'%(node_uuid)s.', {'node_uuid': node.uuid})
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for nic in nics:
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try:
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port = objects.Port(task.context, address=nic.mac,
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node_id=node.id,
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pxe_enabled=(nic.id in pxe_dev_nics))
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port.create()
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LOG.info('Port created with MAC address %(mac)s '
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'for node %(node_uuid)s during inspection',
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{'mac': nic.mac, 'node_uuid': node.uuid})
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except exception.MACAlreadyExists:
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LOG.warning('Failed to create a port with MAC address '
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'%(mac)s when inspecting the node '
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'%(node_uuid)s because the address is already '
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'registered',
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{'mac': nic.mac, 'node_uuid': node.uuid})
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LOG.info('Node %s successfully inspected.', node.uuid)
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return states.MANAGEABLE
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def _guess_root_disk(self, disks, min_size_required_mb=4 * units.Ki):
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"""Find a root disk.
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:param disks: list of disks.
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:param min_size_required_mb: minimum required size of the root disk in
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megabytes.
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:returns: root disk.
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"""
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disks.sort(key=lambda disk: disk.size_mb)
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for disk in disks:
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if disk.size_mb >= min_size_required_mb:
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return disk
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def _calculate_cpus(self, cpu):
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"""Find actual CPU count.
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:param cpu: Pass cpu.
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:returns: returns total cpu count.
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"""
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if cpu.ht_enabled:
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return cpu.cores * 2
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else:
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return cpu.cores
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def _get_pxe_dev_nics(self, client, nics, node):
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"""Get a list of pxe device interfaces.
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:param client: Dracclient to list the bios settings and nics
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:param nics: list of nics
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:param node: Baremetal Node object
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:returns: list of pxe device interfaces.
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"""
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pxe_dev_nics = []
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nic_cap = {}
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pxe_params = ["PxeDev1EnDis", "PxeDev2EnDis",
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"PxeDev3EnDis", "PxeDev4EnDis"]
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pxe_nics = ["PxeDev1Interface", "PxeDev2Interface",
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"PxeDev3Interface", "PxeDev4Interface"]
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try:
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bios_settings = client.list_bios_settings()
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except drac_exceptions.BaseClientException as exc:
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LOG.error('DRAC driver failed to list bios settings '
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'for %(node_uuid)s. Reason: %(error)s.',
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{'node_uuid': node.uuid, 'error': exc})
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raise exception.HardwareInspectionFailure(error=exc)
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if bios_settings["BootMode"].current_value == "Uefi":
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for param, nic in zip(pxe_params, pxe_nics):
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if param in bios_settings and bios_settings[
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param].current_value == "Enabled":
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pxe_dev_nics.append(
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bios_settings[nic].current_value)
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elif bios_settings["BootMode"].current_value == "Bios":
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for nic in nics:
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try:
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nic_cap = self._list_nic_settings(client, nic.id)
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except drac_exceptions.BaseClientException as exc:
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LOG.error('DRAC driver failed to list nic settings '
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'for %(node_uuid)s. Reason: %(error)s.',
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{'node_uuid': node.uuid, 'error': exc})
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raise exception.HardwareInspectionFailure(error=exc)
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if ("LegacyBootProto" in nic_cap and nic_cap[
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'LegacyBootProto'] == "PXE"):
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pxe_dev_nics.append(nic.id)
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return pxe_dev_nics
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def _list_nic_settings(self, client, nic_id):
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"""Get nic attributes.
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:param client: Dracclient instance
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:param nic_id: an FQDD of NIC
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:returns: a dict of FQDD, LegacyBootProto.
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"""
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result = {}
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doc = client.client.enumerate(DCIM_NICEnumeration)
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items = doc.find('.//{%s}Items' % NS_WSMAN)
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for item in items:
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if nic_id == drac_utils.get_wsman_resource_attr(
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item, DCIM_NICEnumeration, 'FQDD'):
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name = drac_utils.get_wsman_resource_attr(item,
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DCIM_NICEnumeration,
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'AttributeName')
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current_value = drac_utils.get_wsman_resource_attr(
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item,
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DCIM_NICEnumeration,
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'CurrentValue',
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nullable=True)
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if name == 'LegacyBootProto':
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result[name] = current_value
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result['FQDD'] = nic_id
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return result
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