87 lines
3.1 KiB
Python
87 lines
3.1 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 keystoneclient.v2_0 import client as ksclient
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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.openstack.common import log
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from ceilometer.openstack.common.rpc import service as rpc_service
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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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cfg.CONF.import_group('service_credentials', 'ceilometer.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(self):
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"""Tasks to be run at a periodic interval."""
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with self.publish_context as publisher:
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# TODO(yjiang5) passing samples into get_samples to avoid
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# polling all counters one by one
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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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))
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publisher(samples)
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except Exception as err:
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LOG.warning('Continue after error from %s: %s',
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pollster.name, err)
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LOG.exception(err)
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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.central',
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invoke_on_load=True,
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)
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)
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def create_polling_task(self):
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return PollingTask(self)
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def interval_task(self, task):
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self.keystone = ksclient.Client(
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username=cfg.CONF.service_credentials.os_username,
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password=cfg.CONF.service_credentials.os_password,
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tenant_id=cfg.CONF.service_credentials.os_tenant_id,
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tenant_name=cfg.CONF.service_credentials.os_tenant_name,
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cacert=cfg.CONF.service_credentials.os_cacert,
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auth_url=cfg.CONF.service_credentials.os_auth_url,
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region_name=cfg.CONF.service_credentials.os_region_name,
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insecure=cfg.CONF.service_credentials.insecure)
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super(AgentManager, self).interval_task(task)
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def agent_central():
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service.prepare_service()
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os_service.launch(rpc_service.Service(cfg.CONF.host,
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'ceilometer.agent.central',
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AgentManager())).wait()
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