72 lines
2.2 KiB
Python
72 lines
2.2 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 statistics from Nova
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import collectd
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import collectd_openstack as openstack
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PLUGIN_NAME = 'nova'
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INTERVAL = openstack.INTERVAL
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class NovaInstanceStatsPlugin(openstack.CollectdPlugin):
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""" Class to report the statistics on Nova instances.
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Number of instances broken down by state
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"""
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def __init__(self, *args, **kwargs):
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super(NovaInstanceStatsPlugin, self).__init__(*args, **kwargs)
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self.plugin = PLUGIN_NAME
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self.interval = INTERVAL
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self.pagination_limit = 500
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def itermetrics(self):
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servers_details = self.get_objects('nova', 'servers',
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params={'all_tenants': 1},
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detail=True)
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def groupby(d):
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return d.get('status', 'unknown').lower()
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status = self.count_objects_group_by(servers_details,
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group_by_func=groupby)
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for s, nb in status.iteritems():
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yield {
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'plugin_instance': 'instances',
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'values': nb,
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'type_instance': s,
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}
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plugin = NovaInstanceStatsPlugin(collectd, PLUGIN_NAME,
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disable_check_metric=True)
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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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