166 lines
6.0 KiB
Python
166 lines
6.0 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 power interface
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"""
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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 ironic.common import exception
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from ironic.common.i18n import _LE
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from ironic.common import states
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from ironic.conductor import task_manager
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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.drivers.modules.drac import management as drac_management
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drac_constants = importutils.try_import('dracclient.constants')
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drac_exceptions = importutils.try_import('dracclient.exceptions')
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LOG = logging.getLogger(__name__)
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if drac_constants:
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POWER_STATES = {
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drac_constants.POWER_ON: states.POWER_ON,
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drac_constants.POWER_OFF: states.POWER_OFF,
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drac_constants.REBOOT: states.REBOOT
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}
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REVERSE_POWER_STATES = dict((v, k) for (k, v) in POWER_STATES.items())
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def _get_power_state(node):
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"""Returns the current power state of the node.
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:param node: an ironic node object.
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:returns: the power state, one of :mod:`ironic.common.states`.
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:raises: InvalidParameterValue if required DRAC credentials are missing.
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:raises: DracOperationError on an error from python-dracclient
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"""
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client = drac_common.get_drac_client(node)
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try:
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drac_power_state = client.get_power_state()
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except drac_exceptions.BaseClientException as exc:
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LOG.error(_LE('DRAC driver failed to get power state for 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.DracOperationError(error=exc)
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return POWER_STATES[drac_power_state]
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def _commit_boot_list_change(node):
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driver_internal_info = node.driver_internal_info
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if ('drac_boot_device' in driver_internal_info and
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driver_internal_info['drac_boot_device'] is not None):
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boot_device = driver_internal_info['drac_boot_device']
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drac_management.set_boot_device(node, boot_device['boot_device'],
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boot_device['persistent'])
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driver_internal_info['drac_boot_device'] = None
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node.driver_internal_info = driver_internal_info
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node.save()
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def _set_power_state(node, power_state):
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"""Turns the server power on/off or do a reboot.
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:param node: an ironic node object.
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:param power_state: a power state from :mod:`ironic.common.states`.
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:raises: InvalidParameterValue if required DRAC credentials are missing.
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:raises: DracOperationError on an error from python-dracclient
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"""
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_commit_boot_list_change(node)
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client = drac_common.get_drac_client(node)
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target_power_state = REVERSE_POWER_STATES[power_state]
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try:
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client.set_power_state(target_power_state)
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except drac_exceptions.BaseClientException as exc:
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LOG.error(_LE('DRAC driver failed to set power state for node '
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'%(node_uuid)s to %(power_state)s. '
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'Reason: %(error)s.'),
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{'node_uuid': node.uuid,
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'power_state': power_state,
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'error': exc})
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raise exception.DracOperationError(error=exc)
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class DracPower(base.PowerInterface):
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"""Interface for power-related actions."""
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def get_properties(self):
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"""Return the properties of the interface."""
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return drac_common.COMMON_PROPERTIES
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def validate(self, task):
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"""Validate the driver-specific Node power info.
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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 power state of 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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def get_power_state(self, task):
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"""Return the power state of the node.
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:param task: a TaskManager instance containing the node to act on.
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:returns: the power state, one of :mod:`ironic.common.states`.
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:raises: InvalidParameterValue if required DRAC credentials are
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missing.
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:raises: DracOperationError on an error from python-dracclient.
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"""
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return _get_power_state(task.node)
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@task_manager.require_exclusive_lock
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def set_power_state(self, task, power_state):
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"""Set the power state of the node.
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:param task: a TaskManager instance containing the node to act on.
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:param power_state: a power state from :mod:`ironic.common.states`.
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:raises: InvalidParameterValue if required DRAC credentials are
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missing.
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:raises: DracOperationError on an error from python-dracclient.
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"""
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_set_power_state(task.node, power_state)
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@task_manager.require_exclusive_lock
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def reboot(self, task):
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"""Perform a reboot of the task's node.
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:param task: a TaskManager instance containing the node to act on.
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:raises: InvalidParameterValue if required DRAC credentials are
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missing.
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:raises: DracOperationError on an error from python-dracclient.
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"""
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current_power_state = _get_power_state(task.node)
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if current_power_state == states.POWER_ON:
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target_power_state = states.REBOOT
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else:
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target_power_state = states.POWER_ON
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_set_power_state(task.node, target_power_state)
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