97 lines
3.8 KiB
Python
97 lines
3.8 KiB
Python
# coding=utf-8
|
|
|
|
# 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.
|
|
|
|
from ironic.common import states
|
|
from ironic.conductor import task_manager
|
|
from ironic.openstack.common import excutils
|
|
from ironic.openstack.common import log
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
|
|
@task_manager.require_exclusive_lock
|
|
def node_power_action(task, node, state):
|
|
"""Change power state or reset for a node.
|
|
|
|
Validate whether the given power transition is possible and perform
|
|
power action.
|
|
|
|
:param task: a TaskManager instance.
|
|
:param node: the Node object to act upon.
|
|
:param state: Any power state from ironic.common.states. If the
|
|
state is 'REBOOT' then a reboot will be attempted, otherwise
|
|
the node power state is directly set to 'state'.
|
|
:raises: InvalidParameterValue when the wrong state is specified
|
|
or the wrong driver info is specified.
|
|
:raises: other exceptions by the node's power driver if something
|
|
wrong occurred during the power action.
|
|
|
|
"""
|
|
context = task.context
|
|
new_state = states.POWER_ON if state == states.REBOOT else state
|
|
try:
|
|
task.driver.power.validate(task, node)
|
|
if state != states.REBOOT:
|
|
curr_state = task.driver.power.get_power_state(task, node)
|
|
except Exception as e:
|
|
with excutils.save_and_reraise_exception():
|
|
node['last_error'] = \
|
|
_("Failed to change power state to '%(target)s'. "
|
|
"Error: %(error)s") % {
|
|
'target': new_state, 'error': e}
|
|
node.save(context)
|
|
|
|
if state != states.REBOOT and curr_state == new_state:
|
|
# Neither the ironic service nor the hardware has erred. The
|
|
# node is, for some reason, already in the requested state,
|
|
# though we don't know why. eg, perhaps the user previously
|
|
# requested the node POWER_ON, the network delayed those IPMI
|
|
# packets, and they are trying again -- but the node finally
|
|
# responds to the first request, and so the second request
|
|
# gets to this check and stops.
|
|
# This isn't an error, so we'll clear last_error field
|
|
# (from previous operation), log a warning, and return.
|
|
node['last_error'] = None
|
|
node.save(context)
|
|
LOG.warn(_("Not going to change_node_power_state because "
|
|
"current state = requested state = '%(state)s'.")
|
|
% {'state': curr_state})
|
|
return
|
|
|
|
# Set the target_power_state and clear any last_error, since we're
|
|
# starting a new operation. This will expose to other processes
|
|
# and clients that work is in progress.
|
|
node['target_power_state'] = new_state
|
|
node['last_error'] = None
|
|
node.save(context)
|
|
|
|
# take power action
|
|
try:
|
|
if state != states.REBOOT:
|
|
task.driver.power.set_power_state(task, node, new_state)
|
|
else:
|
|
task.driver.power.reboot(task, node)
|
|
except Exception as e:
|
|
with excutils.save_and_reraise_exception():
|
|
node['last_error'] = \
|
|
_("Failed to change power state to '%(target)s'. "
|
|
"Error: %(error)s") % {
|
|
'target': new_state, 'error': e}
|
|
else:
|
|
# success!
|
|
node['power_state'] = new_state
|
|
finally:
|
|
node['target_power_state'] = states.NOSTATE
|
|
node.save(context)
|