9d7d7d7cd6
The agent doesn't need to act as a rpc server. This patch migrate the agent manager from a rpc service to a normal service Change-Id: I06f4546fa40f8702a75adc7f6f8e439d17af3de3
87 lines
2.9 KiB
Python
87 lines
2.9 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012-2013 eNovance <licensing@enovance.com>
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#
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# Author: Julien Danjou <julien@danjou.info>
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#
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# 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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from oslo.config import cfg
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from stevedore import extension
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from ceilometer import agent
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from ceilometer.compute.virt import inspector as virt_inspector
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from ceilometer import nova_client
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from ceilometer.openstack.common.gettextutils import _ # noqa
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from ceilometer.openstack.common import log
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from ceilometer.openstack.common import service as os_service
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from ceilometer import service
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LOG = log.getLogger(__name__)
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class PollingTask(agent.PollingTask):
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def poll_and_publish_instances(self, instances):
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with self.publish_context as publisher:
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for instance in instances:
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if getattr(instance, 'OS-EXT-STS:vm_state', None) == 'error':
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continue
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cache = {}
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for pollster in self.pollsters:
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try:
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LOG.info(_("Polling pollster %s"), pollster.name)
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samples = list(pollster.obj.get_samples(
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self.manager,
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cache,
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instance,
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))
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publisher(samples)
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except Exception as err:
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LOG.warning(_(
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'Continue after error from %(name)s: %(error)s')
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% ({'name': pollster.name, 'error': err}))
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LOG.exception(err)
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def poll_and_publish(self):
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try:
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instances = self.manager.nv.instance_get_all_by_host(cfg.CONF.host)
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except Exception as err:
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LOG.exception(_('Unable to retrieve instances: %s') % err)
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else:
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self.poll_and_publish_instances(instances)
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class AgentManager(agent.AgentManager):
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def __init__(self):
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super(AgentManager, self).__init__(
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extension.ExtensionManager(
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namespace='ceilometer.poll.compute',
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invoke_on_load=True,
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),
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)
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self._inspector = virt_inspector.get_hypervisor_inspector()
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self.nv = nova_client.Client()
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def create_polling_task(self):
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return PollingTask(self)
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@property
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def inspector(self):
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return self._inspector
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def agent_compute():
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service.prepare_service()
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os_service.launch(AgentManager()).wait()
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