51c8a8e55c
This is needed to update openstack.common Change-Id: I8410f978f38b3893b71239f97f785086ca5faffe Signed-off-by: Julien Danjou <julien@danjou.info>
105 lines
3.6 KiB
Python
105 lines
3.6 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 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 stevedore import driver
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from ceilometer import extension_manager
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from ceilometer import nova_client
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from ceilometer.compute.virt import inspector as virt_inspector
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from ceilometer.openstack.common import cfg
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from ceilometer.openstack.common import log
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from ceilometer import publish
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OPTS = [
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cfg.ListOpt('disabled_compute_pollsters',
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default=[],
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help='list of compute agent pollsters to disable',
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),
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cfg.StrOpt('hypervisor_inspector',
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default='libvirt',
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help='Inspector to use for inspecting the hypervisor layer'),
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]
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cfg.CONF.register_opts(OPTS)
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LOG = log.getLogger(__name__)
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PLUGIN_NAMESPACE = 'ceilometer.poll.compute'
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def get_hypervisor_inspector():
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try:
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namespace = 'ceilometer.compute.virt'
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mgr = driver.DriverManager(namespace,
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cfg.CONF.hypervisor_inspector,
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invoke_on_load=True)
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return mgr.driver
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except ImportError as e:
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LOG.error("Unable to load the hypervisor inspector: %s" % (e))
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return virt_inspector.Inspector()
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class AgentManager(object):
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def __init__(self):
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self.ext_manager = extension_manager.ActivatedExtensionManager(
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namespace=PLUGIN_NAMESPACE,
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disabled_names=cfg.CONF.disabled_compute_pollsters,
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)
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self._inspector = get_hypervisor_inspector()
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return
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@staticmethod
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def publish_counters_from_one_pollster(ext, manager, context, instance):
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"""Used to invoke the plugins loaded by the ExtensionManager.
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"""
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try:
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LOG.info('polling %s', ext.name)
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for c in ext.obj.get_counters(manager, instance):
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LOG.info('COUNTER: %s', c)
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publish.publish_counter(context, c,
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cfg.CONF.metering_topic,
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cfg.CONF.metering_secret,
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cfg.CONF.counter_source,
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)
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except Exception as err:
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LOG.warning('Continuing after error from %s for %s: %s',
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ext.name, instance.id, err)
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LOG.exception(err)
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def poll_instance(self, context, instance):
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"""Poll one instance."""
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self.ext_manager.map(self.publish_counters_from_one_pollster,
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manager=self,
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context=context,
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instance=instance,
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)
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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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nv = nova_client.Client()
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for instance in nv.instance_get_all_by_host(cfg.CONF.host):
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if getattr(instance, 'OS-EXT-STS:vm_state', None) != 'error':
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self.poll_instance(context, instance)
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@property
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def inspector(self):
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return self._inspector
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