280 lines
11 KiB
Python
280 lines
11 KiB
Python
# Copyright 2015 Huawei Technologies Co., Ltd.
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#
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# 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 datetime
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import eventlet
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import netaddr
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import random
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import six
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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 as messaging
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from oslo_service import periodic_task
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from tricircle.common import client
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from tricircle.common import constants
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from tricircle.common.i18n import _
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from tricircle.common.i18n import _LE
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from tricircle.common.i18n import _LI
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from tricircle.common.i18n import _LW
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import tricircle.db.api as db_api
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CONF = cfg.CONF
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LOG = logging.getLogger(__name__)
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def _job_handle(job_type):
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def handle_func(func):
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@six.wraps(func)
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def handle_args(*args, **kwargs):
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ctx = args[1]
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payload = kwargs['payload']
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resource_id = payload[job_type]
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db_api.new_job(ctx, job_type, resource_id)
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start_time = datetime.datetime.now()
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while True:
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current_time = datetime.datetime.now()
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delta = current_time - start_time
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if delta.seconds >= CONF.worker_handle_timeout:
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# quit when this handle is running for a long time
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break
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time_new = db_api.get_latest_timestamp(ctx, constants.JS_New,
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job_type, resource_id)
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time_success = db_api.get_latest_timestamp(
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ctx, constants.JS_Success, job_type, resource_id)
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if time_success and time_success >= time_new:
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break
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job = db_api.register_job(ctx, job_type, resource_id)
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if not job:
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# fail to obtain the lock, let other worker handle the job
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running_job = db_api.get_running_job(ctx, job_type,
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resource_id)
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if not running_job:
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# there are two reasons that running_job is None. one
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# is that the running job has just been finished, the
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# other is that all workers fail to register the job
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# due to deadlock exception. so we sleep and try again
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eventlet.sleep(CONF.worker_sleep_time)
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continue
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job_time = running_job['timestamp']
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current_time = datetime.datetime.now()
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delta = current_time - job_time
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if delta.seconds > CONF.job_run_expire:
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# previous running job expires, we set its status to
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# fail and try again to obtain the lock
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db_api.finish_job(ctx, running_job['id'], False,
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time_new)
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LOG.warning(_LW('Job %(job)s of type %(job_type)s for '
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'resource %(resource)s expires, set '
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'its state to Fail'),
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{'job': running_job['id'],
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'job_type': job_type,
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'resource': resource_id})
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eventlet.sleep(CONF.worker_sleep_time)
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continue
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else:
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# previous running job is still valid, we just leave
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# the job to the worker who holds the lock
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break
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# successfully obtain the lock, start to execute handler
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try:
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func(*args, **kwargs)
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except Exception:
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db_api.finish_job(ctx, job['id'], False, time_new)
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LOG.error(_LE('Job %(job)s of type %(job_type)s for '
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'resource %(resource)s fails'),
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{'job': job['id'],
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'job_type': job_type,
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'resource': resource_id})
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break
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db_api.finish_job(ctx, job['id'], True, time_new)
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eventlet.sleep(CONF.worker_sleep_time)
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return handle_args
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return handle_func
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class PeriodicTasks(periodic_task.PeriodicTasks):
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def __init__(self):
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super(PeriodicTasks, self).__init__(CONF)
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class XManager(PeriodicTasks):
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target = messaging.Target(version='1.0')
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def __init__(self, host=None, service_name='xjob'):
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LOG.debug(_('XManager initialization...'))
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if not host:
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host = CONF.host
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self.host = host
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self.service_name = service_name
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# self.notifier = rpc.get_notifier(self.service_name, self.host)
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self.additional_endpoints = []
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self.clients = {constants.TOP: client.Client()}
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self.job_handles = {constants.JT_ROUTER: self.configure_extra_routes}
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super(XManager, self).__init__()
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def _get_client(self, pod_name=None):
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if not pod_name:
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return self.clients[constants.TOP]
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if pod_name not in self.clients:
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self.clients[pod_name] = client.Client(pod_name)
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return self.clients[pod_name]
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def periodic_tasks(self, context, raise_on_error=False):
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"""Tasks to be run at a periodic interval."""
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return self.run_periodic_tasks(context, raise_on_error=raise_on_error)
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def init_host(self):
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"""init_host
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Hook to do additional manager initialization when one requests
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the service be started. This is called before any service record
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is created.
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Child classes should override this method.
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"""
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LOG.debug(_('XManager init_host...'))
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pass
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def cleanup_host(self):
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"""cleanup_host
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Hook to do cleanup work when the service shuts down.
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Child classes should override this method.
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"""
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LOG.debug(_('XManager cleanup_host...'))
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pass
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def pre_start_hook(self):
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"""pre_start_hook
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Hook to provide the manager the ability to do additional
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start-up work before any RPC queues/consumers are created. This is
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called after other initialization has succeeded and a service
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record is created.
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Child classes should override this method.
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"""
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LOG.debug(_('XManager pre_start_hook...'))
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pass
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def post_start_hook(self):
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"""post_start_hook
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Hook to provide the manager the ability to do additional
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start-up work immediately after a service creates RPC consumers
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and starts 'running'.
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Child classes should override this method.
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"""
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LOG.debug(_('XManager post_start_hook...'))
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pass
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# rpc message endpoint handling
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def test_rpc(self, ctx, payload):
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LOG.info(_LI("xmanager receive payload: %s"), payload)
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info_text = "xmanager receive payload: %s" % payload
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return info_text
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@periodic_task.periodic_task
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def redo_failed_job(self, ctx):
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failed_jobs = db_api.get_latest_failed_jobs(ctx)
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failed_jobs = [
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job for job in failed_jobs if job['type'] in self.job_handles]
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if not failed_jobs:
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return
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# in one run we only pick one job to handle
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job_index = random.randint(0, len(failed_jobs) - 1)
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failed_job = failed_jobs[job_index]
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job_type = failed_job['type']
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payload = {job_type: failed_job['resource_id']}
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LOG.debug(_('Redo failed job for %(resource_id)s of type '
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'%(job_type)s'),
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{'resource_id': failed_job['resource_id'],
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'job_type': job_type})
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self.job_handles[job_type](ctx, payload=payload)
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@_job_handle(constants.JT_ROUTER)
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def configure_extra_routes(self, ctx, payload):
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t_router_id = payload[constants.JT_ROUTER]
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b_pods, b_router_ids = zip(*db_api.get_bottom_mappings_by_top_id(
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ctx, t_router_id, constants.RT_ROUTER))
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router_bridge_ip_map = {}
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router_cidr_map = {}
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for i, b_pod in enumerate(b_pods):
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bottom_client = self._get_client(pod_name=b_pod['pod_name'])
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b_inferfaces = bottom_client.list_ports(
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ctx, filters=[{'key': 'device_id',
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'comparator': 'eq',
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'value': b_router_ids[i]},
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{'key': 'device_owner',
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'comparator': 'eq',
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'value': 'network:router_interface'}])
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cidrs = []
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for b_inferface in b_inferfaces:
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ip = b_inferface['fixed_ips'][0]['ip_address']
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ew_bridge_cidr = '100.0.0.0/9'
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ns_bridge_cidr = '100.128.0.0/9'
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if netaddr.IPAddress(ip) in netaddr.IPNetwork(ew_bridge_cidr):
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router_bridge_ip_map[b_router_ids[i]] = ip
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continue
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if netaddr.IPAddress(ip) in netaddr.IPNetwork(ns_bridge_cidr):
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continue
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b_subnet = bottom_client.get_subnets(
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ctx, b_inferface['fixed_ips'][0]['subnet_id'])
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cidrs.append(b_subnet['cidr'])
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router_cidr_map[b_router_ids[i]] = cidrs
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for i, b_router_id in enumerate(b_router_ids):
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if b_router_id not in router_bridge_ip_map:
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continue
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bottom_client = self._get_client(pod_name=b_pods[i]['pod_name'])
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extra_routes = []
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for router_id, cidrs in router_cidr_map.iteritems():
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if router_id == b_router_id:
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continue
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for cidr in cidrs:
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extra_routes.append(
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{'nexthop': router_bridge_ip_map[router_id],
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'destination': cidr})
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bottom_client.update_routers(ctx, b_router_id,
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{'router': {'routes': extra_routes}})
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@_job_handle(constants.JT_PORT_DELETE)
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def delete_server_port(self, ctx, payload):
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t_port_id = payload[constants.JT_PORT_DELETE]
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self._get_client().delete_ports(ctx, t_port_id)
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