237 lines
8.5 KiB
Python
237 lines
8.5 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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import sys
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import traceback as traceback_mod
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from eventlet import semaphore
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from futurist import periodics
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from ironic_lib import mdns
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from oslo_config import cfg
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from oslo_log import log
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import oslo_messaging as messaging
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from oslo_utils import excutils
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from oslo_utils import reflection
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import tooz
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from ironic_inspector.common import coordination
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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.common import keystone
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from ironic_inspector import db
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from ironic_inspector import introspect
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from ironic_inspector import node_cache
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from ironic_inspector.plugins import base as plugins_base
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from ironic_inspector import process
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from ironic_inspector.pxe_filter import base as pxe_filter
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from ironic_inspector import utils
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LOG = log.getLogger(__name__)
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CONF = cfg.CONF
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MANAGER_TOPIC = 'ironic_inspector.conductor'
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class ConductorManager(object):
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"""ironic inspector conductor manager"""
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RPC_API_VERSION = '1.3'
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target = messaging.Target(version=RPC_API_VERSION)
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def __init__(self):
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self._periodics_worker = None
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self._zeroconf = None
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self._shutting_down = semaphore.Semaphore()
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self.coordinator = None
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def init_host(self):
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"""Initialize Worker host
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Init db connection, load and validate processing
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hooks, runs periodic tasks.
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:returns None
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"""
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if CONF.processing.store_data == 'none':
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LOG.warning('Introspection data will not be stored. Change '
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'"[processing] store_data" option if this is not '
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'the desired behavior')
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else:
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LOG.info('Introspection data will be stored in the %s backend',
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CONF.processing.store_data)
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db.init()
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self.coordinator = None
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try:
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self.coordinator = coordination.get_coordinator(prefix='conductor')
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self.coordinator.start(heartbeat=True)
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self.coordinator.join_group()
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except Exception as exc:
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if CONF.standalone:
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LOG.info('Coordination backend cannot be started, assuming '
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'no other instances are running. Error: %s', exc)
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self.coordinator = None
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else:
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with excutils.save_and_reraise_exception():
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LOG.critical('Failure when connecting to coordination '
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'backend', exc_info=True)
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self.del_host()
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else:
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LOG.info('Successfully connected to coordination backend.')
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try:
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hooks = plugins_base.validate_processing_hooks()
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except Exception as exc:
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LOG.critical(str(exc))
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sys.exit(1)
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LOG.info('Enabled processing hooks: %s', [h.name for h in hooks])
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driver = pxe_filter.driver()
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driver.init_filter()
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periodic_clean_up_ = periodics.periodic(
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spacing=CONF.clean_up_period,
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enabled=(CONF.clean_up_period != 0)
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)(periodic_clean_up)
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sync_with_ironic_ = periodics.periodic(
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spacing=CONF.clean_up_period,
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enabled=(CONF.clean_up_period != 0)
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)(sync_with_ironic)
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callables = [(periodic_clean_up_, None, None),
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(sync_with_ironic_, (self,), None)]
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driver_task = driver.get_periodic_sync_task()
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if driver_task is not None:
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callables.append((driver_task, None, None))
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# run elections periodically if we have a coordinator
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# that we were able to start
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if (self.coordinator and self.coordinator.started):
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periodic_leader_election_ = periodics.periodic(
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spacing=CONF.leader_election_interval
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)(periodic_leader_election)
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callables.append((periodic_leader_election_, (self,), None))
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self._periodics_worker = periodics.PeriodicWorker(
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callables=callables,
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executor_factory=periodics.ExistingExecutor(utils.executor()),
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on_failure=self._periodics_watchdog)
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utils.executor().submit(self._periodics_worker.start)
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if CONF.enable_mdns:
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endpoint = keystone.get_endpoint('service_catalog')
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self._zeroconf = mdns.Zeroconf()
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self._zeroconf.register_service('baremetal-introspection',
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endpoint)
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def del_host(self):
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"""Shutdown the ironic inspector conductor service."""
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if self.coordinator is not None:
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try:
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if self.coordinator.started:
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self.coordinator.leave_group()
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self.coordinator.stop()
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except tooz.ToozError:
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LOG.exception('Failed to stop coordinator')
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if not self._shutting_down.acquire(blocking=False):
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LOG.warning('Attempted to shut down while already shutting down')
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return
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pxe_filter.driver().tear_down_filter()
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if self._periodics_worker is not None:
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try:
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self._periodics_worker.stop()
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self._periodics_worker.wait()
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except Exception as e:
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LOG.exception('Service error occurred when stopping '
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'periodic workers. Error: %s', e)
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self._periodics_worker = None
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if utils.executor().alive:
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utils.executor().shutdown(wait=True)
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if self._zeroconf is not None:
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self._zeroconf.close()
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self._zeroconf = None
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self._shutting_down.release()
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LOG.info('Shut down successfully')
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def _periodics_watchdog(self, callable_, activity, spacing, exc_info,
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traceback=None):
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LOG.exception("The periodic %(callable)s failed with: %(exception)s", {
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'exception': ''.join(traceback_mod.format_exception(*exc_info)),
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'callable': reflection.get_callable_name(callable_)})
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@messaging.expected_exceptions(utils.Error)
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def do_introspection(self, context, node_id, token=None,
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manage_boot=True):
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introspect.introspect(node_id, token=token, manage_boot=manage_boot)
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@messaging.expected_exceptions(utils.Error)
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def do_abort(self, context, node_id, token=None):
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introspect.abort(node_id, token=token)
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@messaging.expected_exceptions(utils.Error)
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def do_reapply(self, context, node_uuid, token=None, data=None):
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if not data:
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try:
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data = process.get_introspection_data(node_uuid,
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processed=False,
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get_json=True)
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except utils.IntrospectionDataStoreDisabled:
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raise utils.Error(_('Inspector is not configured to store '
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'introspection data. Set the '
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'[processing]store_data configuration '
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'option to change this.'))
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else:
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process.store_introspection_data(node_uuid, data, processed=False)
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process.reapply(node_uuid, data=data)
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@messaging.expected_exceptions(utils.Error)
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def do_continue(self, context, data):
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return process.process(data)
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def periodic_clean_up(): # pragma: no cover
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if node_cache.clean_up():
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pxe_filter.driver().sync(ir_utils.get_client())
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def sync_with_ironic(conductor):
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if (conductor.coordinator is not None
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and not conductor.coordinator.is_leader):
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LOG.debug('The conductor is not a leader, skipping syncing '
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'with ironic')
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return
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LOG.debug('Syncing with ironic')
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ironic = ir_utils.get_client()
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# TODO(yuikotakada): pagination
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ironic_nodes = ironic.nodes(fields=["uuid"], limit=None)
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ironic_node_uuids = {node.id for node in ironic_nodes}
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node_cache.delete_nodes_not_in_list(ironic_node_uuids)
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def periodic_leader_election(conductor):
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if conductor.coordinator is not None:
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conductor.coordinator.run_elect_coordinator()
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return
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