diff --git a/devstack/plugin.sh b/devstack/plugin.sh
index d5170a441..68581f4c1 100644
--- a/devstack/plugin.sh
+++ b/devstack/plugin.sh
@@ -267,6 +267,8 @@ function configure_inspector {
     inspector_iniset iptables dnsmasq_interface $IRONIC_INSPECTOR_INTERFACE
     inspector_iniset database connection `database_connection_url ironic_inspector`
 
+    iniset_rpc_backend ironic-inspector $IRONIC_INSPECTOR_CONF_FILE
+
     if is_service_enabled swift; then
         configure_inspector_swift
     fi
diff --git a/devstack/upgrade/upgrade.sh b/devstack/upgrade/upgrade.sh
index 7138f2d86..949bb8f5f 100755
--- a/devstack/upgrade/upgrade.sh
+++ b/devstack/upgrade/upgrade.sh
@@ -45,6 +45,7 @@ source $TARGET_DEVSTACK_DIR/lib/neutron-legacy
 source $TARGET_DEVSTACK_DIR/lib/apache
 source $TARGET_DEVSTACK_DIR/lib/keystone
 source $TARGET_DEVSTACK_DIR/lib/database
+source $TARGET_DEVSTACK_DIR/lib/rpc_backend
 
 # Inspector relies on couple of Ironic variables
 source $TARGET_RELEASE_DIR/ironic/devstack/lib/ironic
@@ -84,6 +85,8 @@ $IRONIC_INSPECTOR_DBSYNC_BIN_FILE --config-file $IRONIC_INSPECTOR_CONF_FILE upgr
 # calls upgrade inspector for specific release
 upgrade_project ironic-inspector $RUN_DIR $BASE_DEVSTACK_BRANCH $TARGET_DEVSTACK_BRANCH
 
+# setup transport_url for rpc messaging
+iniset_rpc_backend ironic-inspector $IRONIC_INSPECTOR_CONF_FILE
 
 start_inspector
 if is_inspector_dhcp_required; then
diff --git a/ironic_inspector/common/rpc.py b/ironic_inspector/common/rpc.py
index 5586d8dc5..31e531102 100644
--- a/ironic_inspector/common/rpc.py
+++ b/ironic_inspector/common/rpc.py
@@ -19,38 +19,31 @@ from oslo_messaging.rpc import dispatcher
 from ironic_inspector.conductor import manager
 
 CONF = cfg.CONF
-
-_SERVER = None
 TRANSPORT = None
-TOPIC = 'ironic-inspector-worker'
-SERVER_NAME = 'ironic-inspector-rpc-server'
 
 
 def get_transport():
     global TRANSPORT
 
     if TRANSPORT is None:
-        TRANSPORT = messaging.get_rpc_transport(CONF, url='fake://')
+        TRANSPORT = messaging.get_rpc_transport(CONF)
     return TRANSPORT
 
 
 def get_client():
-    target = messaging.Target(topic=TOPIC, server=SERVER_NAME,
+    """Get a RPC client instance."""
+    target = messaging.Target(topic=manager.MANAGER_TOPIC, server=CONF.host,
                               version='1.1')
     transport = get_transport()
     return messaging.RPCClient(transport, target)
 
 
-def get_server():
-    """Get the singleton RPC server."""
-    global _SERVER
+def get_server(endpoints):
+    """Get a RPC server instance."""
 
-    if _SERVER is None:
-        transport = get_transport()
-        target = messaging.Target(topic=TOPIC, server=SERVER_NAME,
-                                  version='1.1')
-        mgr = manager.ConductorManager()
-        _SERVER = messaging.get_rpc_server(
-            transport, target, [mgr], executor='eventlet',
-            access_policy=dispatcher.DefaultRPCAccessPolicy)
-    return _SERVER
+    transport = get_transport()
+    target = messaging.Target(topic=manager.MANAGER_TOPIC, server=CONF.host,
+                              version='1.1')
+    return messaging.get_rpc_server(
+        transport, target, endpoints, executor='eventlet',
+        access_policy=dispatcher.DefaultRPCAccessPolicy)
diff --git a/ironic_inspector/common/rpc_service.py b/ironic_inspector/common/rpc_service.py
new file mode 100644
index 000000000..5035106a7
--- /dev/null
+++ b/ironic_inspector/common/rpc_service.py
@@ -0,0 +1,62 @@
+# 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 oslo_config import cfg
+from oslo_log import log
+from oslo_service import service
+
+from ironic_inspector.common import rpc
+from ironic_inspector.conductor import manager
+
+CONF = cfg.CONF
+LOG = log.getLogger(__name__)
+
+SERVER_NAME = 'ironic-inspector-rpc-server'
+
+
+class RPCService(service.Service):
+
+    def __init__(self, host):
+        super(RPCService, self).__init__()
+        self.host = host
+        self.manager = manager.ConductorManager()
+        self.rpcserver = None
+
+    def start(self):
+        super(RPCService, self).start()
+        self.rpcserver = rpc.get_server([self.manager])
+        self.rpcserver.start()
+
+        self.manager.init_host()
+        LOG.info('Created RPC server for service %(service)s on host '
+                 '%(host)s.',
+                 {'service': manager.MANAGER_TOPIC, 'host': self.host})
+
+    def stop(self):
+        try:
+            self.rpcserver.stop()
+            self.rpcserver.wait()
+        except Exception as e:
+            LOG.exception('Service error occurred when stopping the '
+                          'RPC server. Error: %s', e)
+
+        try:
+            self.manager.del_host()
+        except Exception as e:
+            LOG.exception('Service error occurred when cleaning up '
+                          'the RPC manager. Error: %s', e)
+
+        super(RPCService, self).stop(graceful=True)
+        LOG.info('Stopped RPC server for service %(service)s on host '
+                 '%(host)s.',
+                 {'service': manager.MANAGER_TOPIC, 'host': self.host})
diff --git a/ironic_inspector/conductor/manager.py b/ironic_inspector/conductor/manager.py
index 84061cba1..c4ab9584f 100644
--- a/ironic_inspector/conductor/manager.py
+++ b/ironic_inspector/conductor/manager.py
@@ -11,12 +11,30 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import oslo_messaging as messaging
+import sys
+import traceback as traceback_mod
 
+import eventlet
+from eventlet import semaphore
+from futurist import periodics
+from oslo_config import cfg
+from oslo_log import log
+import oslo_messaging as messaging
+from oslo_utils import reflection
+
+from ironic_inspector.common import ironic as ir_utils
+from ironic_inspector import db
 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__)
+CONF = cfg.CONF
+MANAGER_TOPIC = 'ironic-inspector-conductor'
+
 
 class ConductorManager(object):
     """ironic inspector conductor manager"""
@@ -24,6 +42,79 @@ class ConductorManager(object):
 
     target = messaging.Target(version=RPC_API_VERSION)
 
+    def __init__(self):
+        self._periodics_worker = None
+        self._shutting_down = semaphore.Semaphore()
+
+    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')
+        elif CONF.processing.store_data == 'swift':
+            LOG.info('Introspection data will be stored in Swift in the '
+                     'container %s', CONF.swift.container)
+
+        db.init()
+
+        try:
+            hooks = plugins_base.validate_processing_hooks()
+        except Exception as exc:
+            LOG.critical(str(exc))
+            sys.exit(1)
+        LOG.info('Enabled processing hooks: %s', [h.name for h in hooks])
+
+        driver = pxe_filter.driver()
+        driver.init_filter()
+
+        periodic_clean_up_ = periodics.periodic(
+            spacing=CONF.clean_up_period
+        )(periodic_clean_up)
+
+        self._periodics_worker = periodics.PeriodicWorker(
+            callables=[(driver.get_periodic_sync_task(), None, None),
+                       (periodic_clean_up_, None, None)],
+            executor_factory=periodics.ExistingExecutor(utils.executor()),
+            on_failure=self._periodics_watchdog)
+        utils.executor().submit(self._periodics_worker.start)
+
+    def del_host(self):
+
+        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)
+
+        self._shutting_down.release()
+        LOG.info('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_)})
+        # NOTE(milan): spawn new thread otherwise waiting would block
+        eventlet.spawn(self.del_host)
+
     @messaging.expected_exceptions(utils.Error)
     def do_introspection(self, context, node_id, token=None,
                          manage_boot=True):
@@ -36,3 +127,20 @@ class ConductorManager(object):
     @messaging.expected_exceptions(utils.Error)
     def do_reapply(self, context, node_id, token=None):
         process.reapply(node_id)
+
+
+def periodic_clean_up():  # pragma: no cover
+    try:
+        if node_cache.clean_up():
+            pxe_filter.driver().sync(ir_utils.get_client())
+        sync_with_ironic()
+    except Exception:
+        LOG.exception('Periodic clean up of node cache failed')
+
+
+def sync_with_ironic():
+    ironic = ir_utils.get_client()
+    # TODO(yuikotakada): pagination
+    ironic_nodes = ironic.node.list(limit=0)
+    ironic_node_uuids = {node.uuid for node in ironic_nodes}
+    node_cache.delete_nodes_not_in_list(ironic_node_uuids)
diff --git a/ironic_inspector/conf/default.py b/ironic_inspector/conf/default.py
index b840341be..ef2b9c2d5 100644
--- a/ironic_inspector/conf/default.py
+++ b/ironic_inspector/conf/default.py
@@ -11,6 +11,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import socket
+
 from oslo_config import cfg
 
 from ironic_inspector.common.i18n import _
@@ -23,6 +25,14 @@ _OPTS = [
     cfg.PortOpt('listen_port',
                 default=5050,
                 help=_('Port to listen on.')),
+    cfg.StrOpt('host',
+               default=socket.getfqdn(),
+               sample_default='localhost',
+               help=_('Name of this node. This can be an opaque identifier. '
+                      'It is not necessarily a hostname, FQDN, or IP address. '
+                      'However, the node name must be valid within '
+                      'an AMQP key, and if using ZeroMQ, a valid '
+                      'hostname, FQDN, or IP address.')),
     cfg.StrOpt('auth_strategy',
                default='keystone',
                choices=('keystone', 'noauth'),
diff --git a/ironic_inspector/test/functional.py b/ironic_inspector/test/functional.py
index b26f3381d..cdae214e9 100644
--- a/ironic_inspector/test/functional.py
+++ b/ironic_inspector/test/functional.py
@@ -57,6 +57,7 @@ driver = noop
 debug = True
 introspection_delay = 0
 auth_strategy=noauth
+transport_url=fake://
 [database]
 connection = sqlite:///%(db_file)s
 [processing]
diff --git a/ironic_inspector/test/unit/test_manager.py b/ironic_inspector/test/unit/test_manager.py
index e898a516d..71131f756 100644
--- a/ironic_inspector/test/unit/test_manager.py
+++ b/ironic_inspector/test/unit/test_manager.py
@@ -11,6 +11,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import fixtures
 import mock
 import oslo_messaging as messaging
 
@@ -27,11 +28,213 @@ CONF = ironic_inspector.conf.CONF
 class BaseManagerTest(test_base.NodeTest):
     def setUp(self):
         super(BaseManagerTest, self).setUp()
+        self.mock_log = self.useFixture(fixtures.MockPatchObject(
+            manager, 'LOG')).mock
+        self.mock__shutting_down = (self.useFixture(fixtures.MockPatchObject(
+            manager.semaphore, 'Semaphore', autospec=True))
+            .mock.return_value)
+        self.mock__shutting_down.acquire.return_value = True
         self.manager = manager.ConductorManager()
         self.context = {}
         self.token = None
 
 
+class TestManagerInitHost(BaseManagerTest):
+    def setUp(self):
+        super(TestManagerInitHost, self).setUp()
+        self.mock_db_init = self.useFixture(fixtures.MockPatchObject(
+            manager.db, 'init')).mock
+        self.mock_validate_processing_hooks = self.useFixture(
+            fixtures.MockPatchObject(manager.plugins_base,
+                                     'validate_processing_hooks')).mock
+        self.mock_filter = self.useFixture(fixtures.MockPatchObject(
+            manager.pxe_filter, 'driver')).mock.return_value
+        self.mock_periodic = self.useFixture(fixtures.MockPatchObject(
+            manager.periodics, 'periodic')).mock
+        self.mock_PeriodicWorker = self.useFixture(fixtures.MockPatchObject(
+            manager.periodics, 'PeriodicWorker')).mock
+        self.mock_executor = self.useFixture(fixtures.MockPatchObject(
+            manager.utils, 'executor')).mock
+        self.mock_ExistingExecutor = self.useFixture(fixtures.MockPatchObject(
+            manager.periodics, 'ExistingExecutor')).mock
+        self.mock_exit = self.useFixture(fixtures.MockPatchObject(
+            manager.sys, 'exit')).mock
+
+    def assert_periodics(self):
+        outer_cleanup_decorator_call = mock.call(
+            spacing=CONF.clean_up_period)
+        self.mock_periodic.assert_has_calls([
+            outer_cleanup_decorator_call,
+            mock.call()(manager.periodic_clean_up)])
+
+        inner_decorator = self.mock_periodic.return_value
+        inner_cleanup_decorator_call = mock.call(
+            manager.periodic_clean_up)
+        inner_decorator.assert_has_calls([inner_cleanup_decorator_call])
+
+        self.mock_ExistingExecutor.assert_called_once_with(
+            self.mock_executor.return_value)
+
+        periodic_worker = self.mock_PeriodicWorker.return_value
+
+        periodic_sync = self.mock_filter.get_periodic_sync_task.return_value
+        callables = [(periodic_sync, None, None),
+                     (inner_decorator.return_value, None, None)]
+        self.mock_PeriodicWorker.assert_called_once_with(
+            callables=callables,
+            executor_factory=self.mock_ExistingExecutor.return_value,
+            on_failure=self.manager._periodics_watchdog)
+        self.assertIs(periodic_worker, self.manager._periodics_worker)
+
+        self.mock_executor.return_value.submit.assert_called_once_with(
+            self.manager._periodics_worker.start)
+
+    def test_no_introspection_data_store(self):
+        CONF.set_override('store_data', 'none', 'processing')
+        self.manager.init_host()
+        self.mock_log.warning.assert_called_once_with(
+            'Introspection data will not be stored. Change "[processing] '
+            'store_data" option if this is not the desired behavior')
+
+    def test_init_host(self):
+        self.manager.init_host()
+        self.mock_db_init.asset_called_once_with()
+        self.mock_validate_processing_hooks.assert_called_once_with()
+        self.mock_filter.init_filter.assert_called_once_with()
+        self.assert_periodics()
+
+    def test_init_host_validate_processing_hooks_exception(self):
+        class MyError(Exception):
+            pass
+
+        error = MyError('Oops!')
+        self.mock_validate_processing_hooks.side_effect = error
+
+        # NOTE(milan): have to stop executing the test case at this point to
+        # simulate a real sys.exit() call
+        self.mock_exit.side_effect = SystemExit('Stop!')
+        self.assertRaisesRegex(SystemExit, 'Stop!', self.manager.init_host)
+
+        self.mock_db_init.assert_called_once_with()
+        self.mock_log.critical.assert_called_once_with(str(error))
+        self.mock_exit.assert_called_once_with(1)
+        self.mock_filter.init_filter.assert_not_called()
+
+
+class TestManagerDelHost(BaseManagerTest):
+    def setUp(self):
+        super(TestManagerDelHost, self).setUp()
+        self.mock_filter = self.useFixture(fixtures.MockPatchObject(
+            manager.pxe_filter, 'driver')).mock.return_value
+        self.mock_executor = mock.Mock()
+        self.mock_executor.alive = True
+        self.mock_get_executor = self.useFixture(fixtures.MockPatchObject(
+            manager.utils, 'executor')).mock
+        self.mock_get_executor.return_value = self.mock_executor
+        self.mock__periodic_worker = self.useFixture(fixtures.MockPatchObject(
+            self.manager, '_periodics_worker')).mock
+        self.mock_exit = self.useFixture(fixtures.MockPatchObject(
+            manager.sys, 'exit')).mock
+
+    def test_del_host(self):
+        self.manager.del_host()
+
+        self.mock__shutting_down.acquire.assert_called_once_with(
+            blocking=False)
+        self.mock__periodic_worker.stop.assert_called_once_with()
+        self.mock__periodic_worker.wait.assert_called_once_with()
+        self.assertIsNone(self.manager._periodics_worker)
+        self.mock_executor.shutdown.assert_called_once_with(wait=True)
+        self.mock_filter.tear_down_filter.assert_called_once_with()
+        self.mock__shutting_down.release.assert_called_once_with()
+
+    def test_del_host_race(self):
+        self.mock__shutting_down.acquire.return_value = False
+
+        self.manager.del_host()
+
+        self.mock__shutting_down.acquire.assert_called_once_with(
+            blocking=False)
+        self.mock_log.warning.assert_called_once_with(
+            'Attempted to shut down while already shutting down')
+        self.mock__periodic_worker.stop.assert_not_called()
+        self.mock__periodic_worker.wait.assert_not_called()
+        self.assertIs(self.mock__periodic_worker,
+                      self.manager._periodics_worker)
+        self.mock_executor.shutdown.assert_not_called()
+        self.mock_filter.tear_down_filter.assert_not_called()
+        self.mock__shutting_down.release.assert_not_called()
+        self.mock_exit.assert_not_called()
+
+    def test_del_host_worker_exception(self):
+        class MyError(Exception):
+            pass
+
+        error = MyError('Oops!')
+        self.mock__periodic_worker.wait.side_effect = error
+
+        self.manager.del_host()
+
+        self.mock__shutting_down.acquire.assert_called_once_with(
+            blocking=False)
+        self.mock__periodic_worker.stop.assert_called_once_with()
+        self.mock__periodic_worker.wait.assert_called_once_with()
+        self.mock_log.exception.assert_called_once_with(
+            'Service error occurred when stopping periodic workers. Error: %s',
+            error)
+        self.assertIsNone(self.manager._periodics_worker)
+        self.mock_executor.shutdown.assert_called_once_with(wait=True)
+        self.mock_filter.tear_down_filter.assert_called_once_with()
+        self.mock__shutting_down.release.assert_called_once_with()
+
+    def test_del_host_no_worker(self):
+        self.manager._periodics_worker = None
+
+        self.manager.del_host()
+
+        self.mock__shutting_down.acquire.assert_called_once_with(
+            blocking=False)
+        self.mock__periodic_worker.stop.assert_not_called()
+        self.mock__periodic_worker.wait.assert_not_called()
+        self.assertIsNone(self.manager._periodics_worker)
+        self.mock_executor.shutdown.assert_called_once_with(wait=True)
+        self.mock_filter.tear_down_filter.assert_called_once_with()
+        self.mock__shutting_down.release.assert_called_once_with()
+
+    def test_del_host_stopped_executor(self):
+        self.mock_executor.alive = False
+
+        self.manager.del_host()
+
+        self.mock__shutting_down.acquire.assert_called_once_with(
+            blocking=False)
+        self.mock__periodic_worker.stop.assert_called_once_with()
+        self.mock__periodic_worker.wait.assert_called_once_with()
+        self.assertIsNone(self.manager._periodics_worker)
+        self.mock_executor.shutdown.assert_not_called()
+        self.mock_filter.tear_down_filter.assert_called_once_with()
+        self.mock__shutting_down.release.assert_called_once_with()
+
+
+class TestManagerPeriodicWatchDog(BaseManagerTest):
+    def setUp(self):
+        super(TestManagerPeriodicWatchDog, self).setUp()
+        self.mock_get_callable_name = self.useFixture(fixtures.MockPatchObject(
+            manager.reflection, 'get_callable_name')).mock
+        self.mock_spawn = self.useFixture(fixtures.MockPatchObject(
+            manager.eventlet, 'spawn')).mock
+
+    def test__periodics_watchdog(self):
+        error = RuntimeError('Oops!')
+
+        self.manager._periodics_watchdog(
+            callable_=None, activity=None, spacing=None,
+            exc_info=(None, error, None), traceback=None)
+
+        self.mock_get_callable_name.assert_called_once_with(None)
+        self.mock_spawn.assert_called_once_with(self.manager.del_host)
+
+
 class TestManagerIntrospect(BaseManagerTest):
     @mock.patch.object(introspect, 'introspect', autospec=True)
     def test_do_introspect(self, introspect_mock):
diff --git a/ironic_inspector/test/unit/test_wsgi_service.py b/ironic_inspector/test/unit/test_wsgi_service.py
index 6f37e79c9..3cb83dbaa 100644
--- a/ironic_inspector/test/unit/test_wsgi_service.py
+++ b/ironic_inspector/test/unit/test_wsgi_service.py
@@ -20,11 +20,9 @@ import fixtures
 import mock
 from oslo_config import cfg
 
-from ironic_inspector.common import rpc
 from ironic_inspector.test import base as test_base
 from ironic_inspector import wsgi_service
 
-
 CONF = cfg.CONF
 
 
@@ -34,15 +32,9 @@ class BaseWSGITest(test_base.BaseTest):
         super(BaseWSGITest, self).setUp()
         self.app = self.useFixture(fixtures.MockPatchObject(
             wsgi_service.app, 'app', autospec=True)).mock
-        self.mock__shutting_down = (self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.semaphore, 'Semaphore', autospec=True))
-            .mock.return_value)
-        self.mock__shutting_down.acquire.return_value = True
         self.mock_log = self.useFixture(fixtures.MockPatchObject(
             wsgi_service, 'LOG')).mock
         self.service = wsgi_service.WSGIService()
-        self.mock_rpc_server = self.useFixture(fixtures.MockPatchObject(
-            rpc, 'get_server')).mock
 
 
 class TestWSGIServiceInitMiddleware(BaseWSGITest):
@@ -73,118 +65,10 @@ class TestWSGIServiceInitMiddleware(BaseWSGITest):
             'Starting unauthenticated, please check configuration')
         self.mock_add_cors_middleware.assert_called_once_with(self.app)
 
-    def test_init_middleware_no_store(self):
-        CONF.set_override('store_data', 'none', 'processing')
-        self.service._init_middleware()
-
-        self.mock_add_auth_middleware.assert_called_once_with(self.app)
-        self.mock_log.warning.assert_called_once_with(
-            'Introspection data will not be stored. Change "[processing] '
-            'store_data" option if this is not the desired behavior')
-        self.mock_add_cors_middleware.assert_called_once_with(self.app)
-
-
-class TestWSGIServiceInitHost(BaseWSGITest):
-    def setUp(self):
-        super(TestWSGIServiceInitHost, self).setUp()
-        self.mock_db_init = self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.db, 'init')).mock
-        self.mock_validate_processing_hooks = self.useFixture(
-            fixtures.MockPatchObject(wsgi_service.plugins_base,
-                                     'validate_processing_hooks')).mock
-        self.mock_filter = self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.pxe_filter, 'driver')).mock.return_value
-        self.mock_periodic = self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.periodics, 'periodic')).mock
-        self.mock_PeriodicWorker = self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.periodics, 'PeriodicWorker')).mock
-        self.mock_executor = self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.utils, 'executor')).mock
-        self.mock_ExistingExecutor = self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.periodics, 'ExistingExecutor')).mock
-        self.mock_exit = self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.sys, 'exit')).mock
-
-    def assert_periodics(self):
-        outer_cleanup_decorator_call = mock.call(
-            spacing=CONF.clean_up_period)
-        self.mock_periodic.assert_has_calls([
-            outer_cleanup_decorator_call,
-            mock.call()(wsgi_service.periodic_clean_up)])
-
-        inner_decorator = self.mock_periodic.return_value
-        inner_cleanup_decorator_call = mock.call(
-            wsgi_service.periodic_clean_up)
-        inner_decorator.assert_has_calls([inner_cleanup_decorator_call])
-
-        self.mock_ExistingExecutor.assert_called_once_with(
-            self.mock_executor.return_value)
-
-        periodic_worker = self.mock_PeriodicWorker.return_value
-
-        periodic_sync = self.mock_filter.get_periodic_sync_task.return_value
-        callables = [(periodic_sync, None, None),
-                     (inner_decorator.return_value, None, None)]
-        self.mock_PeriodicWorker.assert_called_once_with(
-            callables=callables,
-            executor_factory=self.mock_ExistingExecutor.return_value,
-            on_failure=self.service._periodics_watchdog)
-        self.assertIs(periodic_worker, self.service._periodics_worker)
-
-        self.mock_executor.return_value.submit.assert_called_once_with(
-            self.service._periodics_worker.start)
-
-    def test_init_host(self):
-        self.service._init_host()
-
-        self.mock_db_init.asset_called_once_with()
-        self.mock_validate_processing_hooks.assert_called_once_with()
-        self.mock_filter.init_filter.assert_called_once_with()
-        self.assert_periodics()
-
-    def test_init_host_validate_processing_hooks_exception(self):
-        class MyError(Exception):
-            pass
-
-        error = MyError('Oops!')
-        self.mock_validate_processing_hooks.side_effect = error
-
-        # NOTE(milan): have to stop executing the test case at this point to
-        # simulate a real sys.exit() call
-        self.mock_exit.side_effect = SystemExit('Stop!')
-        self.assertRaisesRegex(SystemExit, 'Stop!', self.service._init_host)
-
-        self.mock_db_init.assert_called_once_with()
-        self.mock_log.critical.assert_called_once_with(str(error))
-        self.mock_exit.assert_called_once_with(1)
-        self.mock_filter.init_filter.assert_not_called()
-
-
-class TestWSGIServicePeriodicWatchDog(BaseWSGITest):
-    def setUp(self):
-        super(TestWSGIServicePeriodicWatchDog, self).setUp()
-        self.mock_get_callable_name = self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.reflection, 'get_callable_name')).mock
-        self.mock_spawn = self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.eventlet, 'spawn')).mock
-
-    def test__periodics_watchdog(self):
-        error = RuntimeError('Oops!')
-
-        self.service._periodics_watchdog(
-            callable_=None, activity=None, spacing=None,
-            exc_info=(None, error, None), traceback=None)
-
-        self.mock_get_callable_name.assert_called_once_with(None)
-        self.mock_spawn.assert_called_once_with(self.service.shutdown,
-                                                error=str(error))
-
 
 class TestWSGIServiceRun(BaseWSGITest):
     def setUp(self):
         super(TestWSGIServiceRun, self).setUp()
-        self.mock__init_host = self.useFixture(fixtures.MockPatchObject(
-            self.service, '_init_host')).mock
         self.mock__init_middleware = self.useFixture(fixtures.MockPatchObject(
             self.service, '_init_middleware')).mock
         self.mock__create_ssl_context = self.useFixture(
@@ -201,9 +85,6 @@ class TestWSGIServiceRun(BaseWSGITest):
 
         self.mock__create_ssl_context.assert_called_once_with()
         self.mock__init_middleware.assert_called_once_with()
-        self.mock__init_host.assert_called_once_with()
-        self.mock_rpc_server.assert_called_once_with()
-        self.service.rpc_server.start.assert_called_once_with()
         self.app.run.assert_called_once_with(
             host=CONF.listen_address, port=CONF.listen_port,
             ssl_context=self.mock__create_ssl_context.return_value)
@@ -215,7 +96,6 @@ class TestWSGIServiceRun(BaseWSGITest):
         self.service.run()
         self.mock__create_ssl_context.assert_called_once_with()
         self.mock__init_middleware.assert_called_once_with()
-        self.mock__init_host.assert_called_once_with()
         self.app.run.assert_called_once_with(
             host=CONF.listen_address, port=CONF.listen_port)
         self.mock_shutdown.assert_called_once_with()
@@ -230,7 +110,6 @@ class TestWSGIServiceRun(BaseWSGITest):
 
         self.mock__create_ssl_context.assert_called_once_with()
         self.mock__init_middleware.assert_called_once_with()
-        self.mock__init_host.assert_called_once_with()
         self.app.run.assert_called_once_with(
             host=CONF.listen_address, port=CONF.listen_port,
             ssl_context=self.mock__create_ssl_context.return_value)
@@ -240,108 +119,21 @@ class TestWSGIServiceRun(BaseWSGITest):
 class TestWSGIServiceShutdown(BaseWSGITest):
     def setUp(self):
         super(TestWSGIServiceShutdown, self).setUp()
-        self.mock_filter = self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.pxe_filter, 'driver')).mock.return_value
-        self.mock_executor = mock.Mock()
-        self.mock_executor.alive = True
-        self.mock_get_executor = self.useFixture(fixtures.MockPatchObject(
-            wsgi_service.utils, 'executor')).mock
-        self.mock_get_executor.return_value = self.mock_executor
         self.service = wsgi_service.WSGIService()
-        self.mock__periodic_worker = self.useFixture(fixtures.MockPatchObject(
-            self.service, '_periodics_worker')).mock
+        self.mock_rpc_service = mock.MagicMock()
+        self.service.rpc_service = self.mock_rpc_service
         self.mock_exit = self.useFixture(fixtures.MockPatchObject(
             wsgi_service.sys, 'exit')).mock
-        self.service.rpc_server = self.mock_rpc_server
 
     def test_shutdown(self):
         class MyError(Exception):
             pass
-
         error = MyError('Oops!')
 
         self.service.shutdown(error=error)
-
-        self.mock__shutting_down.acquire.assert_called_once_with(
-            blocking=False)
-        self.mock__periodic_worker.stop.assert_called_once_with()
-        self.mock__periodic_worker.wait.assert_called_once_with()
-        self.assertIsNone(self.service._periodics_worker)
-        self.mock_executor.shutdown.assert_called_once_with(wait=True)
-        self.mock_filter.tear_down_filter.assert_called_once_with()
-        self.mock__shutting_down.release.assert_called_once_with()
+        self.mock_rpc_service.stop.assert_called_once_with()
         self.mock_exit.assert_called_once_with(error)
 
-    def test_shutdown_race(self):
-        self.mock__shutting_down.acquire.return_value = False
-
-        self.service.shutdown()
-
-        self.mock__shutting_down.acquire.assert_called_once_with(
-            blocking=False)
-        self.mock_log.warning.assert_called_once_with(
-            'Attempted to shut down while already shutting down')
-        self.mock__periodic_worker.stop.assert_not_called()
-        self.mock__periodic_worker.wait.assert_not_called()
-        self.assertIs(self.mock__periodic_worker,
-                      self.service._periodics_worker)
-        self.mock_executor.shutdown.assert_not_called()
-        self.mock_filter.tear_down_filter.assert_not_called()
-        self.mock__shutting_down.release.assert_not_called()
-        self.mock_exit.assert_not_called()
-
-    def test_shutdown_worker_exception(self):
-        class MyError(Exception):
-            pass
-
-        error = MyError('Oops!')
-        self.mock__periodic_worker.wait.side_effect = error
-
-        self.service.shutdown()
-
-        self.mock__shutting_down.acquire.assert_called_once_with(
-            blocking=False)
-        self.mock__periodic_worker.stop.assert_called_once_with()
-        self.mock__periodic_worker.wait.assert_called_once_with()
-        self.mock_log.exception.assert_called_once_with(
-            'Service error occurred when stopping periodic workers. Error: %s',
-            error)
-        self.assertIsNone(self.service._periodics_worker)
-        self.mock_executor.shutdown.assert_called_once_with(wait=True)
-        self.mock_filter.tear_down_filter.assert_called_once_with()
-        self.mock__shutting_down.release.assert_called_once_with()
-        self.mock_exit.assert_called_once_with(None)
-
-    def test_shutdown_no_worker(self):
-        self.service._periodics_worker = None
-
-        self.service.shutdown()
-
-        self.mock__shutting_down.acquire.assert_called_once_with(
-            blocking=False)
-        self.mock__periodic_worker.stop.assert_not_called()
-        self.mock__periodic_worker.wait.assert_not_called()
-        self.assertIsNone(self.service._periodics_worker)
-        self.mock_executor.shutdown.assert_called_once_with(wait=True)
-        self.mock_filter.tear_down_filter.assert_called_once_with()
-        self.mock__shutting_down.release.assert_called_once_with()
-        self.mock_exit.assert_called_once_with(None)
-
-    def test_shutdown_stopped_executor(self):
-        self.mock_executor.alive = False
-
-        self.service.shutdown()
-
-        self.mock__shutting_down.acquire.assert_called_once_with(
-            blocking=False)
-        self.mock__periodic_worker.stop.assert_called_once_with()
-        self.mock__periodic_worker.wait.assert_called_once_with()
-        self.assertIsNone(self.service._periodics_worker)
-        self.mock_executor.shutdown.assert_not_called()
-        self.mock_filter.tear_down_filter.assert_called_once_with()
-        self.mock__shutting_down.release.assert_called_once_with()
-        self.mock_exit.assert_called_once_with(None)
-
 
 class TestCreateSSLContext(test_base.BaseTest):
     def setUp(self):
diff --git a/ironic_inspector/wsgi_service.py b/ironic_inspector/wsgi_service.py
index 33fc40754..8513e16f6 100644
--- a/ironic_inspector/wsgi_service.py
+++ b/ironic_inspector/wsgi_service.py
@@ -13,25 +13,16 @@
 import signal
 import ssl
 import sys
-import traceback as traceback_mod
 
 import eventlet
-from eventlet import semaphore
-from futurist import periodics
 from oslo_config import cfg
 from oslo_log import log
-from oslo_utils import reflection
+from oslo_service import service
 
-from ironic_inspector.common import ironic as ir_utils
-from ironic_inspector.common import rpc
-from ironic_inspector import db
+from ironic_inspector.common.rpc_service import RPCService
 from ironic_inspector import main as app
-from ironic_inspector import node_cache
-from ironic_inspector.plugins import base as plugins_base
-from ironic_inspector.pxe_filter import base as pxe_filter
 from ironic_inspector import utils
 
-
 LOG = log.getLogger(__name__)
 CONF = cfg.CONF
 
@@ -41,10 +32,9 @@ class WSGIService(object):
 
     def __init__(self):
         self.app = app.app
-        self._periodics_worker = None
-        self._shutting_down = semaphore.Semaphore()
         signal.signal(signal.SIGHUP, self._handle_sighup)
         signal.signal(signal.SIGTERM, self._handle_sigterm)
+        self.rpc_service = RPCService(CONF.host)
 
     def _init_middleware(self):
         """Initialize WSGI middleware.
@@ -57,15 +47,6 @@ class WSGIService(object):
         else:
             LOG.warning('Starting unauthenticated, please check'
                         ' configuration')
-
-        # TODO(aarefiev): move to WorkerService once we split service
-        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')
-        elif CONF.processing.store_data == 'swift':
-            LOG.info('Introspection data will be stored in Swift in the '
-                     'container %s', CONF.swift.container)
         utils.add_cors_middleware(self.app)
 
     def _create_ssl_context(self):
@@ -99,77 +80,13 @@ class WSGIService(object):
                             'settings: %s', exc)
         return context
 
-    # TODO(aarefiev): move init code to WorkerService
-    def _init_host(self):
-        """Initialize Worker host
-
-        Init db connection, load and validate processing
-        hooks, runs periodic tasks.
-
-        :returns None
-        """
-        db.init()
-
-        try:
-            hooks = plugins_base.validate_processing_hooks()
-        except Exception as exc:
-            LOG.critical(str(exc))
-            sys.exit(1)
-
-        LOG.info('Enabled processing hooks: %s', [h.name for h in hooks])
-
-        driver = pxe_filter.driver()
-        driver.init_filter()
-
-        periodic_clean_up_ = periodics.periodic(
-            spacing=CONF.clean_up_period
-        )(periodic_clean_up)
-
-        self._periodics_worker = periodics.PeriodicWorker(
-            callables=[(driver.get_periodic_sync_task(), None, None),
-                       (periodic_clean_up_, None, None)],
-            executor_factory=periodics.ExistingExecutor(utils.executor()),
-            on_failure=self._periodics_watchdog)
-        utils.executor().submit(self._periodics_worker.start)
-
-    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_)})
-        # NOTE(milan): spawn new thread otherwise waiting would block
-        eventlet.spawn(self.shutdown, error=str(exc_info[1]))
-
     def shutdown(self, error=None):
-        """Stop serving API, clean up.
+        """Stop serving API.
 
         :returns: None
         """
-        # TODO(aarefiev): move shutdown code to WorkerService
-        if not self._shutting_down.acquire(blocking=False):
-            LOG.warning('Attempted to shut down while already shutting down')
-            return
-
         LOG.debug('Shutting down')
-
-        self.rpc_server.stop()
-
-        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)
-
-        pxe_filter.driver().tear_down_filter()
-
-        self._shutting_down.release()
-        LOG.info('Shut down successfully')
+        self.rpc_service.stop()
         sys.exit(error)
 
     def run(self):
@@ -186,10 +103,9 @@ class WSGIService(object):
 
         self._init_middleware()
 
-        self._init_host()
-
-        self.rpc_server = rpc.get_server()
-        self.rpc_server.start()
+        LOG.info('Spawning RPC service')
+        service.launch(CONF, self.rpc_service,
+                       restart_method='mutate')
 
         try:
             self.app.run(**app_kwargs)
@@ -210,20 +126,3 @@ class WSGIService(object):
         # SIGTERM. Raising KeyboardIntrerrupt which won't be caught by any
         # 'except Exception' clauses.
         raise KeyboardInterrupt
-
-
-def periodic_clean_up():  # pragma: no cover
-    try:
-        if node_cache.clean_up():
-            pxe_filter.driver().sync(ir_utils.get_client())
-        sync_with_ironic()
-    except Exception:
-        LOG.exception('Periodic clean up of node cache failed')
-
-
-def sync_with_ironic():
-    ironic = ir_utils.get_client()
-    # TODO(yuikotakada): pagination
-    ironic_nodes = ironic.node.list(limit=0)
-    ironic_node_uuids = {node.uuid for node in ironic_nodes}
-    node_cache.delete_nodes_not_in_list(ironic_node_uuids)
diff --git a/releasenotes/notes/rpc-backends-0e7405aa1c7723a0.yaml b/releasenotes/notes/rpc-backends-0e7405aa1c7723a0.yaml
new file mode 100644
index 000000000..57abafbac
--- /dev/null
+++ b/releasenotes/notes/rpc-backends-0e7405aa1c7723a0.yaml
@@ -0,0 +1,7 @@
+---
+upgrade:
+  - |
+    Adds rpc related configuration options for the communication between
+    ironic-inspector API and worker. It needs to be configured properly
+    during upgrade. Set ``[DEFAULT]transport_url`` to ``fake://`` if a
+    rpc backend is not available or not desired.
\ No newline at end of file
diff --git a/tools/config-generator.conf b/tools/config-generator.conf
index fae4268a6..47fd222cf 100644
--- a/tools/config-generator.conf
+++ b/tools/config-generator.conf
@@ -6,3 +6,4 @@ namespace = oslo.db
 namespace = oslo.log
 namespace = oslo.middleware.cors
 namespace = oslo.policy
+namespace = oslo.messaging