Source code for ironic_inspector.conductor.manager

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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# Unless required by applicable law or agreed to in writing, software
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import sys
import traceback as traceback_mod

from eventlet import semaphore
from futurist import periodics
from ironic_lib import mdns
from oslo_config import cfg
from oslo_log import log
import oslo_messaging as messaging
from oslo_utils import excutils
from oslo_utils import reflection
import tooz

from ironic_inspector.common import coordination
from ironic_inspector.common.i18n import _
from ironic_inspector.common import ironic as ir_utils
from ironic_inspector.common import keystone
from ironic_inspector.db import api as dbapi
from ironic_inspector import introspect
from ironic_inspector import node_cache
from ironic_inspector.plugins import base as plugins_base
from ironic_inspector import process
from ironic_inspector.pxe_filter import base as pxe_filter
from ironic_inspector import utils

LOG = log.getLogger(__name__)
MANAGER_TOPIC = 'ironic_inspector.conductor'

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