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# -*- coding: utf-8 -*-
#
# Copyright 2014 Red Hat, Inc.
# All Rights Reserved.
#
# 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 management interface
"""
from ironic_lib import metrics_utils
from oslo_log import log as logging
from oslo_utils import importutils
from ironic.common import boot_devices
from ironic.common import exception
from ironic.common.i18n import _, _LE
from ironic.conductor import task_manager
from ironic.drivers import base
from ironic.drivers.modules.drac import common as drac_common
from ironic.drivers.modules.drac import job as drac_job
drac_exceptions = importutils.try_import('dracclient.exceptions')
LOG = logging.getLogger(__name__)
METRICS = metrics_utils.get_metrics_logger(__name__)
_BOOT_DEVICES_MAP = {
boot_devices.DISK: 'HardDisk',
boot_devices.PXE: 'NIC',
boot_devices.CDROM: 'Optical',
}
# BootMode constants
PERSISTENT_BOOT_MODE = 'IPL'
NON_PERSISTENT_BOOT_MODE = 'OneTime'
def _get_boot_device(node, drac_boot_devices=None):
client = drac_common.get_drac_client(node)
try:
boot_modes = client.list_boot_modes()
next_boot_modes = [mode.id for mode in boot_modes if mode.is_next]
if NON_PERSISTENT_BOOT_MODE in next_boot_modes:
next_boot_mode = NON_PERSISTENT_BOOT_MODE
else:
next_boot_mode = next_boot_modes[0]
if drac_boot_devices is None:
drac_boot_devices = client.list_boot_devices()
drac_boot_device = drac_boot_devices[next_boot_mode][0]
boot_device = next(key for (key, value) in _BOOT_DEVICES_MAP.items()
if value in drac_boot_device.id)
return {'boot_device': boot_device,
'persistent': next_boot_mode == PERSISTENT_BOOT_MODE}
except (drac_exceptions.BaseClientException, IndexError) as exc:
LOG.error(_LE('DRAC driver failed to get next boot mode for '
'node %(node_uuid)s. Reason: %(error)s.'),
{'node_uuid': node.uuid, 'error': exc})
raise exception.DracOperationError(error=exc)
def set_boot_device(node, device, persistent=False):
"""Set the boot device for a node.
Set the boot device to use on next boot of the node.
:param node: an ironic node object.
:param device: the boot device, one of
:mod:`ironic.common.boot_devices`.
:param persistent: Boolean value. True if the boot device will
persist to all future boots, False if not.
Default: False.
:raises: DracOperationError on an error from python-dracclient.
"""
drac_job.validate_job_queue(node)
client = drac_common.get_drac_client(node)
try:
drac_boot_devices = client.list_boot_devices()
current_boot_device = _get_boot_device(node, drac_boot_devices)
# If we are already booting from the right device, do nothing.
if current_boot_device == {'boot_device': device,
'persistent': persistent}:
LOG.debug('DRAC already set to boot from %s', device)
return
drac_boot_device = next(drac_device.id for drac_device
in drac_boot_devices[PERSISTENT_BOOT_MODE]
if _BOOT_DEVICES_MAP[device] in drac_device.id)
if persistent:
boot_list = PERSISTENT_BOOT_MODE
else:
boot_list = NON_PERSISTENT_BOOT_MODE
client.change_boot_device_order(boot_list, drac_boot_device)
client.commit_pending_bios_changes()
except drac_exceptions.BaseClientException as exc:
LOG.error(_LE('DRAC driver failed to change boot device order for '
'node %(node_uuid)s. Reason: %(error)s.'),
{'node_uuid': node.uuid, 'error': exc})
raise exception.DracOperationError(error=exc)
class DracManagement(base.ManagementInterface):
def get_properties(self):
"""Return the properties of the interface."""
return drac_common.COMMON_PROPERTIES
@METRICS.timer('DracManagement.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('DracManagement.get_supported_boot_devices')
def get_supported_boot_devices(self, task):
"""Get a list of the supported boot devices.
:param task: a TaskManager instance containing the node to act on.
:returns: A list with the supported boot devices defined
in :mod:`ironic.common.boot_devices`.
"""
return list(_BOOT_DEVICES_MAP.keys())
@METRICS.timer('DracManagement.get_boot_device')
def get_boot_device(self, task):
"""Get the current boot device for a node.
Returns the current boot device of the node.
:param task: a TaskManager instance containing the node to act on.
:raises: DracOperationError on an error from python-dracclient.
:returns: a dictionary containing:
:boot_device: the boot device, one of
:mod:`ironic.common.boot_devices` or None if it is unknown.
:persistent: whether the boot device will persist to all future
boots or not, None if it is unknown.
"""
node = task.node
boot_device = node.driver_internal_info.get('drac_boot_device')
if boot_device is not None:
return boot_device
return _get_boot_device(node)
@METRICS.timer('DracManagement.set_boot_device')
@task_manager.require_exclusive_lock
def set_boot_device(self, task, device, persistent=False):
"""Set the boot device for a node.
Set the boot device to use on next reboot of the node.
:param task: a TaskManager instance containing the node to act on.
:param device: the boot device, one of
:mod:`ironic.common.boot_devices`.
:param persistent: Boolean value. True if the boot device will
persist to all future boots, False if not.
Default: False.
:raises: InvalidParameterValue if an invalid boot device is specified.
"""
node = task.node
if device not in _BOOT_DEVICES_MAP:
raise exception.InvalidParameterValue(
_("set_boot_device called with invalid device '%(device)s' "
"for node %(node_id)s.") % {'device': device,
'node_id': node.uuid})
# NOTE(ifarkas): DRAC interface doesn't allow changing the boot device
# multiple times in a row without a reboot. This is
# because a change need to be committed via a
# configuration job, and further configuration jobs
# cannot be created until the previous one is processed
# at the next boot. As a workaround, saving it to
# driver_internal_info and committing the change during
# power state change.
driver_internal_info = node.driver_internal_info
driver_internal_info['drac_boot_device'] = {'boot_device': device,
'persistent': persistent}
node.driver_internal_info = driver_internal_info
node.save()
@METRICS.timer('DracManagement.get_sensors_data')
def get_sensors_data(self, task):
"""Get sensors data.
:param task: a TaskManager instance.
:raises: FailedToGetSensorData when getting the sensor data fails.
:raises: FailedToParseSensorData when parsing sensor data fails.
:returns: returns a consistent format dict of sensor data grouped by
sensor type, which can be processed by Ceilometer.
"""
raise NotImplementedError()
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