bf62510102
Leverages the same technique as the instance cache for the compute agent. Closes-Bug: #1474369 Change-Id: I2ceff882a33dea6e1dfd0835c8c3ea928b81794d Signed-off-by: Jason Myers <jason@jasonamyers.com>
93 lines
3.3 KiB
Python
93 lines
3.3 KiB
Python
# -*- encoding: utf-8 -*-
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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 oslo_log import log
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from oslo_utils import timeutils
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from ceilometer.agent import plugin_base
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from ceilometer.i18n import _
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from ceilometer import nova_client
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LOG = log.getLogger(__name__)
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OPTS = [
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cfg.StrOpt('url_scheme',
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default='snmp://',
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help='URL scheme to use for hardware nodes.'),
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cfg.StrOpt('readonly_user_name',
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default='ro_snmp_user',
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help='SNMPd user name of all nodes running in the cloud.'),
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cfg.StrOpt('readonly_user_password',
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default='password',
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help='SNMPd password of all the nodes running in the cloud.',
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secret=True),
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]
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cfg.CONF.register_opts(OPTS, group='hardware')
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class NodesDiscoveryTripleO(plugin_base.DiscoveryBase):
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def __init__(self):
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super(NodesDiscoveryTripleO, self).__init__()
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self.nova_cli = nova_client.Client()
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self.last_run = None
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self.instances = {}
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@staticmethod
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def _address(instance, field):
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return instance.addresses['ctlplane'][0].get(field)
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def discover(self, manager, param=None):
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"""Discover resources to monitor.
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instance_get_all will return all instances if last_run is None,
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and will return only the instances changed since the last_run time.
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"""
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instances = self.nova_cli.instance_get_all(self.last_run)
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for instance in instances:
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if getattr(instance, 'OS-EXT-STS:vm_state', None) in ['deleted',
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'error']:
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self.instances.pop(instance.id, None)
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else:
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self.instances[instance.id] = instance
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self.last_run = timeutils.utcnow(True).isoformat()
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resources = []
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for instance in self.instances.values():
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try:
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ip_address = self._address(instance, 'addr')
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final_address = (
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cfg.CONF.hardware.url_scheme +
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cfg.CONF.hardware.readonly_user_name + ':' +
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cfg.CONF.hardware.readonly_user_password + '@' +
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ip_address)
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resource = {
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'resource_id': instance.id,
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'resource_url': final_address,
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'mac_addr': self._address(instance,
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'OS-EXT-IPS-MAC:mac_addr'),
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'image_id': instance.image['id'],
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'flavor_id': instance.flavor['id']
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}
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resources.append(resource)
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except KeyError:
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LOG.error(_("Couldn't obtain IP address of "
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"instance %s") % instance.id)
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return resources
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