Hardware introspection daemon for OpenStack Ironic
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# 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.
"""Handling introspection request."""
import time
from eventlet import semaphore
from oslo_config import cfg
from ironic_inspector.common.i18n import _
from ironic_inspector.common import ironic as ir_utils
from ironic_inspector import introspection_state as istate
from ironic_inspector import node_cache
from ironic_inspector.pxe_filter import base as pxe_filter
from ironic_inspector import utils
CONF = cfg.CONF
LOG = utils.getProcessingLogger(__name__)
_LAST_INTROSPECTION_TIME = 0
_LAST_INTROSPECTION_LOCK = semaphore.BoundedSemaphore()
def introspect(node_id, manage_boot=True, token=None):
"""Initiate hardware properties introspection for a given node.
:param node_id: node UUID or name
:param manage_boot: whether to manage boot for this node
:param token: authentication token
:raises: Error
"""
ironic = ir_utils.get_client(token)
node = ir_utils.get_node(node_id, ironic=ironic)
ir_utils.check_provision_state(node)
if manage_boot:
validation = ironic.node.validate(node.uuid)
if not validation.power['result']:
msg = _('Failed validation of power interface, reason: %s')
raise utils.Error(msg % validation.power['reason'],
node_info=node)
bmc_address, bmc_ipv4, bmc_ipv6 = ir_utils.get_ipmi_address(node)
lookup_attrs = list(filter(None, [bmc_ipv4, bmc_ipv6]))
node_info = node_cache.start_introspection(node.uuid,
bmc_address=lookup_attrs,
manage_boot=manage_boot,
ironic=ironic)
utils.executor().submit(_background_introspect, node_info, ironic)
@node_cache.release_lock
@node_cache.fsm_transition(istate.Events.wait)
def _background_introspect(node_info, ironic):
global _LAST_INTROSPECTION_TIME
LOG.debug('Attempting to acquire lock on last introspection time')
with _LAST_INTROSPECTION_LOCK:
delay = (_LAST_INTROSPECTION_TIME - time.time()
+ CONF.introspection_delay)
if delay > 0:
LOG.debug('Waiting %d seconds before sending the next '
'node on introspection', delay)
time.sleep(delay)
_LAST_INTROSPECTION_TIME = time.time()
node_info.acquire_lock()
_background_introspect_locked(node_info, ironic)
def _background_introspect_locked(node_info, ironic):
# TODO(dtantsur): pagination
macs = list(node_info.ports())
if macs:
node_info.add_attribute(node_cache.MACS_ATTRIBUTE, macs)
LOG.info('Whitelisting MAC\'s %s for a PXE boot', macs,
node_info=node_info)
pxe_filter.driver().sync(ironic)
attrs = node_info.attributes
if CONF.processing.node_not_found_hook is None and not attrs:
raise utils.Error(
_('No lookup attributes were found, inspector won\'t '
'be able to find it after introspection, consider creating '
'ironic ports or providing an IPMI address'),
node_info=node_info)
LOG.info('The following attributes will be used for look up: %s',
attrs, node_info=node_info)
if node_info.manage_boot:
try:
ironic.node.set_boot_device(node_info.uuid, 'pxe',
persistent=False)
except Exception as exc:
raise utils.Error(_('Failed to set boot device to PXE: %s') % exc,
node_info=node_info)
try:
ironic.node.set_power_state(node_info.uuid, 'reboot')
except Exception as exc:
raise utils.Error(_('Failed to power on the node, check it\'s '
'power management configuration: %s') % exc,
node_info=node_info)
LOG.info('Introspection started successfully',
node_info=node_info)
else:
LOG.info('Introspection environment is ready, external power on '
'is required within %d seconds', CONF.timeout,
node_info=node_info)
def abort(node_id, token=None):
"""Abort running introspection.
:param node_id: node UUID or name
:param token: authentication token
:raises: Error
"""
LOG.debug('Aborting introspection for node %s', node_id)
ironic = ir_utils.get_client(token)
node_info = node_cache.get_node(node_id, ironic=ironic, locked=False)
# check pending operations
locked = node_info.acquire_lock(blocking=False)
if not locked:
# Node busy --- cannot abort atm
raise utils.Error(_('Node is locked, please, retry later'),
node_info=node_info, code=409)
utils.executor().submit(_abort, node_info, ironic)
@node_cache.release_lock
@node_cache.fsm_event_before(istate.Events.abort)
def _abort(node_info, ironic):
# runs in background
LOG.debug('Forcing power-off', node_info=node_info)
if node_info.manage_boot:
try:
ironic.node.set_power_state(node_info.uuid, 'off')
except Exception as exc:
LOG.warning('Failed to power off node: %s', exc,
node_info=node_info)
node_info.finished(istate.Events.abort_end,
error=_('Canceled by operator'))
# block this node from PXE Booting the introspection image
try:
pxe_filter.driver().sync(ironic)
except Exception as exc:
# Note(mkovacik): this will be retried in the PXE filter sync
# periodic task; we continue aborting
LOG.warning('Failed to sync the PXE filter: %s', exc,
node_info=node_info)
LOG.info('Introspection aborted', node_info=node_info)