97 lines
3.0 KiB
Python
97 lines
3.0 KiB
Python
#!/usr/bin/python
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# Copyright 2015 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Collectd plugin for getting resource statistics from Neutron
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import collectd
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from collections import Counter
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from collections import defaultdict
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import re
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import collectd_openstack as openstack
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PLUGIN_NAME = 'neutron'
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INTERVAL = openstack.INTERVAL
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class NeutronAgentStatsPlugin(openstack.CollectdPlugin):
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""" Class to report the statistics on Neutron agents.
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state of agents
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"""
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neutron_re = re.compile('^neutron-')
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agent_re = re.compile('-agent$')
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states = {'up': 0, 'down': 1, 'disabled': 2}
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def __init__(self, *args, **kwargs):
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super(NeutronAgentStatsPlugin, self).__init__(*args, **kwargs)
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self.plugin = PLUGIN_NAME
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self.interval = INTERVAL
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def itermetrics(self):
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# Get information of the state per agent
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# State can be up or down
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aggregated_agents = defaultdict(Counter)
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for agent in self.iter_workers('neutron'):
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host = agent['host'].split('.')[0]
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service = self.agent_re.sub(
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'', self.neutron_re.sub('', agent['service']))
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state = agent['state']
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aggregated_agents[service][state] += 1
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yield {
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'type_instance': 'neutron_agent',
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'values': self.states[state],
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'meta': {'host': host, 'service': service, 'state': state}
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}
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for service in aggregated_agents:
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totala = sum(aggregated_agents[service].values())
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for state in self.states:
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prct = (100.0 * aggregated_agents[service][state]) / totala
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yield {
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'type_instance': 'neutron_agents_percent',
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'values': prct,
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'meta': {'service': service, 'state': state},
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}
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yield {
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'type_instance': 'neutron_agents',
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'values': aggregated_agents[service][state],
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'meta': {'service': service, 'state': state},
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}
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plugin = NeutronAgentStatsPlugin(collectd, PLUGIN_NAME)
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def config_callback(conf):
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plugin.config_callback(conf)
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def notification_callback(notification):
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plugin.notification_callback(notification)
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def read_callback():
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plugin.conditional_read_callback()
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collectd.register_config(config_callback)
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collectd.register_notification(notification_callback)
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collectd.register_read(read_callback, INTERVAL)
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