188 lines
7.3 KiB
Python
188 lines
7.3 KiB
Python
# Copyright 2015, Cisco Systems.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo_log import log as logging
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from oslo_service import loopingcall
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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 _
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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.conf import CONF
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from ironic.drivers import base
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from ironic.drivers.modules.cimc import common
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imcsdk = importutils.try_import('ImcSdk')
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LOG = logging.getLogger(__name__)
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if imcsdk:
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CIMC_TO_IRONIC_POWER_STATE = {
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imcsdk.ComputeRackUnit.CONST_OPER_POWER_ON: states.POWER_ON,
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imcsdk.ComputeRackUnit.CONST_OPER_POWER_OFF: states.POWER_OFF,
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}
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IRONIC_TO_CIMC_POWER_STATE = {
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states.POWER_ON: imcsdk.ComputeRackUnit.CONST_ADMIN_POWER_UP,
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states.POWER_OFF: imcsdk.ComputeRackUnit.CONST_ADMIN_POWER_DOWN,
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states.REBOOT:
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imcsdk.ComputeRackUnit.CONST_ADMIN_POWER_HARD_RESET_IMMEDIATE
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}
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def _wait_for_state_change(target_state, task):
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"""Wait and check for the power state change
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:param target_state: The target state we are waiting for.
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:param task: a TaskManager instance containing the node to act on.
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:raises: CIMCException if there is an error communicating with CIMC
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"""
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store = {'state': None, 'retries': CONF.cimc.max_retry}
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def _wait(store):
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current_power_state = None
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with common.cimc_handle(task) as handle:
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try:
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rack_unit = handle.get_imc_managedobject(
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None, None, params={"Dn": "sys/rack-unit-1"}
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)
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except imcsdk.ImcException as e:
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raise exception.CIMCException(node=task.node.uuid, error=e)
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else:
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current_power_state = rack_unit[0].get_attr("OperPower")
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store['state'] = CIMC_TO_IRONIC_POWER_STATE.get(current_power_state)
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if store['state'] == target_state:
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raise loopingcall.LoopingCallDone()
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store['retries'] -= 1
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if store['retries'] <= 0:
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store['state'] = states.ERROR
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raise loopingcall.LoopingCallDone()
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timer = loopingcall.FixedIntervalLoopingCall(_wait, store)
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timer.start(interval=CONF.cimc.action_interval).wait()
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return store['state']
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class Power(base.PowerInterface):
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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 common.COMMON_PROPERTIES
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def validate(self, task):
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"""Check if node.driver_info contains the required CIMC credentials.
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:param task: a TaskManager instance.
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:raises: InvalidParameterValue if required CIMC credentials are
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missing.
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"""
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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 task's node.
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:param task: a TaskManager instance containing the node to act on.
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:raises: MissingParameterValue if a required parameter is missing.
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:returns: a power state. One of :mod:`ironic.common.states`.
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:raises: CIMCException if there is an error communicating with CIMC
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"""
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current_power_state = None
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with common.cimc_handle(task) as handle:
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try:
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rack_unit = handle.get_imc_managedobject(
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None, None, params={"Dn": "sys/rack-unit-1"}
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)
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except imcsdk.ImcException as e:
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raise exception.CIMCException(node=task.node.uuid, error=e)
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else:
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current_power_state = rack_unit[0].get_attr("OperPower")
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return CIMC_TO_IRONIC_POWER_STATE.get(current_power_state,
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states.ERROR)
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@task_manager.require_exclusive_lock
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def set_power_state(self, task, pstate, timeout=None):
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"""Set the power state of the task's node.
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:param task: a TaskManager instance containing the node to act on.
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:param pstate: Any power state from :mod:`ironic.common.states`.
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:param timeout: timeout (in seconds). Unsupported by this interface.
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:raises: MissingParameterValue if a required parameter is missing.
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:raises: InvalidParameterValue if an invalid power state is passed
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:raises: CIMCException if there is an error communicating with CIMC
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"""
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# TODO(rloo): Support timeouts!
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if timeout is not None:
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LOG.warning(
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"The 'cimc' Power Interface's 'set_power_state' method "
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"doesn't support the 'timeout' parameter. Ignoring "
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"timeout=%(timeout)s",
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{'timeout': timeout})
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if pstate not in IRONIC_TO_CIMC_POWER_STATE:
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msg = _("set_power_state called for %(node)s with "
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"invalid state %(state)s")
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raise exception.InvalidParameterValue(
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msg % {"node": task.node.uuid, "state": pstate})
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with common.cimc_handle(task) as handle:
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try:
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handle.set_imc_managedobject(
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None, class_id="ComputeRackUnit",
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params={
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imcsdk.ComputeRackUnit.ADMIN_POWER:
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IRONIC_TO_CIMC_POWER_STATE[pstate],
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imcsdk.ComputeRackUnit.DN: "sys/rack-unit-1"
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})
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except imcsdk.ImcException as e:
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raise exception.CIMCException(node=task.node.uuid, error=e)
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if pstate is states.REBOOT:
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pstate = states.POWER_ON
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state = _wait_for_state_change(pstate, task)
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if state != pstate:
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raise exception.PowerStateFailure(pstate=pstate)
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@task_manager.require_exclusive_lock
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def reboot(self, task, timeout=None):
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"""Perform a hard reboot of the task's node.
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If the node is already powered on then it shall reboot the node, if
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its off then the node will just be turned on.
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:param task: a TaskManager instance containing the node to act on.
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:param timeout: timeout (in seconds). Unsupported by this interface.
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:raises: MissingParameterValue if a required parameter is missing.
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:raises: CIMCException if there is an error communicating with CIMC
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"""
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# TODO(rloo): Support timeouts!
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if timeout is not None:
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LOG.warning("The 'cimc' Power Interface's 'reboot' method "
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"doesn't support the 'timeout' parameter. Ignoring "
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"timeout=%(timeout)s",
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{'timeout': timeout})
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current_power_state = self.get_power_state(task)
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if current_power_state == states.POWER_ON:
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self.set_power_state(task, states.REBOOT)
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elif current_power_state == states.POWER_OFF:
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self.set_power_state(task, states.POWER_ON)
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