49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
#
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# Copyright 2014 Red Hat, Inc
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#
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# Author: Eoghan Glynn <eglynn@redhat.com>
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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 ceilometer.agent import plugin_base
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from ceilometer import nova_client
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OPTS = [
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cfg.BoolOpt('workload_partitioning',
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default=False,
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help='Enable work-load partitioning, allowing multiple '
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'compute agents to be run simultaneously.')
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]
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cfg.CONF.register_opts(OPTS, group='compute')
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class InstanceDiscovery(plugin_base.DiscoveryBase):
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def __init__(self):
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super(InstanceDiscovery, self).__init__()
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self.nova_cli = nova_client.Client()
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def discover(self, manager, param=None):
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"""Discover resources to monitor."""
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instances = self.nova_cli.instance_get_all_by_host(cfg.CONF.host)
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return [i for i in instances
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if getattr(i, 'OS-EXT-STS:vm_state', None) != 'error']
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@property
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def group_id(self):
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if cfg.CONF.compute.workload_partitioning:
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return cfg.CONF.host
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else:
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return None
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