185 lines
6.4 KiB
Python
185 lines
6.4 KiB
Python
# 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
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# 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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"""Handling introspection request."""
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import re
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import time
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from eventlet import semaphore
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from oslo_config import cfg
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from ironic_inspector.common.i18n import _
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from ironic_inspector.common import ironic as ir_utils
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from ironic_inspector import firewall
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from ironic_inspector import introspection_state as istate
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from ironic_inspector import node_cache
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from ironic_inspector import utils
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CONF = cfg.CONF
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LOG = utils.getProcessingLogger(__name__)
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_LAST_INTROSPECTION_TIME = 0
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_LAST_INTROSPECTION_LOCK = semaphore.BoundedSemaphore()
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def introspect(node_id, token=None):
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"""Initiate hardware properties introspection for a given node.
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:param node_id: node UUID or name
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:param token: authentication token
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:raises: Error
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"""
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ironic = ir_utils.get_client(token)
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node = ir_utils.get_node(node_id, ironic=ironic)
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ir_utils.check_provision_state(node)
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validation = ironic.node.validate(node.uuid)
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if not validation.power['result']:
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msg = _('Failed validation of power interface, reason: %s')
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raise utils.Error(msg % validation.power['reason'],
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node_info=node)
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bmc_address = ir_utils.get_ipmi_address(node)
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node_info = node_cache.start_introspection(node.uuid,
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bmc_address=bmc_address,
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ironic=ironic)
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def _handle_exceptions(fut):
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try:
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fut.result()
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except utils.Error as exc:
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# Logging has already happened in Error.__init__
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node_info.finished(error=str(exc))
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except Exception as exc:
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msg = _('Unexpected exception in background introspection thread')
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LOG.exception(msg, node_info=node_info)
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node_info.finished(error=msg)
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future = utils.executor().submit(_background_introspect, ironic, node_info)
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future.add_done_callback(_handle_exceptions)
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def _background_introspect(ironic, node_info):
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global _LAST_INTROSPECTION_TIME
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if re.match(CONF.introspection_delay_drivers, node_info.node().driver):
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LOG.debug('Attempting to acquire lock on last introspection time')
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with _LAST_INTROSPECTION_LOCK:
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delay = (_LAST_INTROSPECTION_TIME - time.time()
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+ CONF.introspection_delay)
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if delay > 0:
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LOG.debug('Waiting %d seconds before sending the next '
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'node on introspection', delay)
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time.sleep(delay)
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_LAST_INTROSPECTION_TIME = time.time()
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node_info.acquire_lock()
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try:
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_background_introspect_locked(node_info, ironic)
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finally:
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node_info.release_lock()
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@node_cache.fsm_transition(istate.Events.wait)
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def _background_introspect_locked(node_info, ironic):
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# TODO(dtantsur): pagination
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macs = list(node_info.ports())
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if macs:
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node_info.add_attribute(node_cache.MACS_ATTRIBUTE, macs)
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LOG.info('Whitelisting MAC\'s %s on the firewall', macs,
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node_info=node_info)
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firewall.update_filters(ironic)
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attrs = node_info.attributes
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if CONF.processing.node_not_found_hook is None and not attrs:
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raise utils.Error(
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_('No lookup attributes were found, inspector won\'t '
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'be able to find it after introspection, consider creating '
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'ironic ports or providing an IPMI address'),
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node_info=node_info)
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LOG.info('The following attributes will be used for look up: %s',
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attrs, node_info=node_info)
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try:
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ironic.node.set_boot_device(node_info.uuid, 'pxe',
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persistent=False)
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except Exception as exc:
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LOG.warning('Failed to set boot device to PXE: %s',
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exc, node_info=node_info)
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try:
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ironic.node.set_power_state(node_info.uuid, 'reboot')
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except Exception as exc:
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raise utils.Error(_('Failed to power on the node, check it\'s '
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'power management configuration: %s'),
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exc, node_info=node_info)
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LOG.info('Introspection started successfully',
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node_info=node_info)
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def abort(node_id, token=None):
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"""Abort running introspection.
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:param node_id: node UUID or name
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:param token: authentication token
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:raises: Error
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"""
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LOG.debug('Aborting introspection for node %s', node_id)
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ironic = ir_utils.get_client(token)
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node_info = node_cache.get_node(node_id, ironic=ironic, locked=False)
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# check pending operations
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locked = node_info.acquire_lock(blocking=False)
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if not locked:
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# Node busy --- cannot abort atm
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raise utils.Error(_('Node is locked, please, retry later'),
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node_info=node_info, code=409)
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utils.executor().submit(_abort, node_info, ironic)
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@node_cache.release_lock
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@node_cache.fsm_transition(istate.Events.abort, reentrant=False)
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def _abort(node_info, ironic):
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# runs in background
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if node_info.finished_at is not None:
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# introspection already finished; nothing to do
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LOG.info('Cannot abort introspection as it is already '
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'finished', node_info=node_info)
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node_info.release_lock()
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return
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# finish the introspection
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LOG.debug('Forcing power-off', node_info=node_info)
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try:
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ironic.node.set_power_state(node_info.uuid, 'off')
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except Exception as exc:
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LOG.warning('Failed to power off node: %s', exc,
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node_info=node_info)
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node_info.finished(error=_('Canceled by operator'))
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# block this node from PXE Booting the introspection image
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try:
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firewall.update_filters(ironic)
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except Exception as exc:
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# Note(mkovacik): this will be retried in firewall update
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# periodic task; we continue aborting
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LOG.warning('Failed to update firewall filters: %s', exc,
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node_info=node_info)
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LOG.info('Introspection aborted', node_info=node_info)
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