237 lines
9.1 KiB
Python
237 lines
9.1 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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# Copyright (c) 2017 Wind River Systems, Inc.
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#
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# The right to copy, distribute, modify, or otherwise make use
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# of this software may be licensed only pursuant to the terms
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# of an applicable Wind River license agreement.
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#
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import six
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import time
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import functools
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from oslo_config import cfg
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from oslo_log import log as logging
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import oslo_messaging
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from oslo_service import service
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from oslo_utils import uuidutils
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from dcorch.common import consts as dcorch_consts
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from dcmanager.common import consts
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from dcmanager.common import context
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from dcmanager.common import exceptions
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from dcmanager.common.i18n import _
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from dcmanager.common import messaging as rpc_messaging
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from dcmanager.manager.patch_audit_manager import PatchAuditManager
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from dcmanager.manager import scheduler
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from dcmanager.manager.subcloud_audit_manager import SubcloudAuditManager
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from dcmanager.manager.subcloud_manager import SubcloudManager
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from dcmanager.manager.sw_update_manager import SwUpdateManager
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CONF = cfg.CONF
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LOG = logging.getLogger(__name__)
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def request_context(func):
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@functools.wraps(func)
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def wrapped(self, ctx, *args, **kwargs):
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if ctx is not None and not isinstance(ctx, context.RequestContext):
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ctx = context.RequestContext.from_dict(ctx.to_dict())
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try:
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return func(self, ctx, *args, **kwargs)
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except exceptions.DCManagerException:
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raise oslo_messaging.rpc.dispatcher.ExpectedException()
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return wrapped
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class DCManagerService(service.Service):
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"""Lifecycle manager for a running service.
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- All the methods in here are called from the RPC client.
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- If a RPC call does not have a corresponding method here, an exception
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will be thrown.
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- Arguments to these calls are added dynamically and will be treated as
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keyword arguments by the RPC client.
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"""
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def __init__(self, host, topic, manager=None):
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super(DCManagerService, self).__init__()
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self.host = cfg.CONF.host
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self.rpc_api_version = consts.RPC_API_VERSION
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self.topic = consts.TOPIC_DC_MANAGER
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# The following are initialized here, but assigned in start() which
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# happens after the fork when spawning multiple worker processes
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self.engine_id = None
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self.TG = None
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self.periodic_enable = cfg.CONF.scheduler.periodic_enable
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self.target = None
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self._rpc_server = None
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self.subcloud_manager = None
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self.subcloud_audit_manager = None
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self.sw_update_manager = None
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self.patch_audit_manager = None
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def init_tgm(self):
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self.TG = scheduler.ThreadGroupManager()
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def init_audit_managers(self):
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self.subcloud_audit_manager = SubcloudAuditManager(
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subcloud_manager=self.subcloud_manager)
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self.patch_audit_manager = PatchAuditManager(
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subcloud_manager=self.subcloud_manager)
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def init_managers(self):
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self.subcloud_manager = SubcloudManager()
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self.sw_update_manager = SwUpdateManager()
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def stop_managers(self):
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self.sw_update_manager.stop()
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def start(self):
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self.dcmanager_id = uuidutils.generate_uuid()
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self.init_tgm()
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self.init_managers()
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self.init_audit_managers()
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target = oslo_messaging.Target(version=self.rpc_api_version,
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server=self.host,
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topic=self.topic)
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self.target = target
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self._rpc_server = rpc_messaging.get_rpc_server(self.target, self)
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self._rpc_server.start()
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super(DCManagerService, self).start()
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if self.periodic_enable:
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LOG.info("Adding periodic tasks for the manager to perform")
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self.TG.add_timer(cfg.CONF.scheduler.subcloud_audit_interval,
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self.subcloud_audit, None)
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self.TG.add_timer(cfg.CONF.scheduler.patch_audit_interval,
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self.patch_audit, None)
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def subcloud_audit(self):
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# Audit availability of all subclouds.
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# Note this will run in a separate green thread
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LOG.debug("Subcloud audit job started at: %s",
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time.strftime("%c"))
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self.subcloud_audit_manager.periodic_subcloud_audit()
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def patch_audit(self):
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# Audit patch status of all subclouds.
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# Note this will run in a separate green thread
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LOG.debug("Patch audit job started at: %s",
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time.strftime("%c"))
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self.patch_audit_manager.periodic_patch_audit()
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@request_context
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def add_subcloud(self, context, payload):
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# Adds a subcloud
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LOG.info("Handling add_subcloud request for: %s" % payload.get('name'))
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return self.subcloud_manager.add_subcloud(context, payload)
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@request_context
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def delete_subcloud(self, context, subcloud_id):
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# Deletes a subcloud
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LOG.info("Handling delete_subcloud request for: %s" % subcloud_id)
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return self.subcloud_manager.delete_subcloud(context, subcloud_id)
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@request_context
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def update_subcloud(self, context, subcloud_id, management_state=None,
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description=None, location=None):
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# Updates a subcloud
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LOG.info("Handling update_subcloud request for: %s" % subcloud_id)
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subcloud = self.subcloud_manager.update_subcloud(context, subcloud_id,
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management_state,
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description,
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location)
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# If a subcloud has been set to the managed state, trigger the
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# patching audit so it can update the sync status ASAP.
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if management_state == consts.MANAGEMENT_MANAGED:
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PatchAuditManager.trigger_audit()
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return subcloud
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@request_context
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def update_subcloud_endpoint_status(self, context, subcloud_name=None,
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endpoint_type=None,
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sync_status=consts.
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SYNC_STATUS_OUT_OF_SYNC,
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alarmable=True):
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# Updates subcloud endpoint sync status
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LOG.info("Handling update_subcloud_endpoint_status request for: %s" %
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subcloud_name)
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self.subcloud_manager. \
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update_subcloud_endpoint_status(context,
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subcloud_name,
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endpoint_type,
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sync_status,
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alarmable)
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# If the patching sync status is being set to unknown, trigger the
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# patching audit so it can update the sync status ASAP.
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if endpoint_type == dcorch_consts.ENDPOINT_TYPE_PATCHING and \
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sync_status == consts.SYNC_STATUS_UNKNOWN:
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PatchAuditManager.trigger_audit()
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return
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@request_context
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def create_sw_update_strategy(self, context, payload):
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# Creates a software update strategy
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LOG.info("Handling create_sw_update_strategy request of type %s" %
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payload.get('type'))
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return self.sw_update_manager.create_sw_update_strategy(
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context, payload)
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@request_context
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def delete_sw_update_strategy(self, context):
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# Deletes the software update strategy
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LOG.info("Handling delete_sw_update_strategy request")
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return self.sw_update_manager.delete_sw_update_strategy(context)
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@request_context
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def apply_sw_update_strategy(self, context):
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# Applies the software update strategy
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LOG.info("Handling apply_sw_update_strategy request")
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return self.sw_update_manager.apply_sw_update_strategy(context)
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@request_context
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def abort_sw_update_strategy(self, context):
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# Aborts the software update strategy
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LOG.info("Handling abort_sw_update_strategy request")
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return self.sw_update_manager.abort_sw_update_strategy(context)
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def _stop_rpc_server(self):
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# Stop RPC connection to prevent new requests
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LOG.debug(_("Attempting to stop engine service..."))
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try:
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self._rpc_server.stop()
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self._rpc_server.wait()
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LOG.info('Engine service stopped successfully')
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except Exception as ex:
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LOG.error('Failed to stop engine service: %s',
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six.text_type(ex))
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def stop(self):
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self._stop_rpc_server()
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self.TG.stop()
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self.stop_managers()
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# Terminate the engine process
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LOG.info("All threads were gone, terminating engine")
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super(DCManagerService, self).stop()
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