101 lines
3.0 KiB
Python
101 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 checking the status of OpenStack API services
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import collectd
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import openstack
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PLUGIN_NAME = 'check_openstack_api'
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INTERVAL = 60
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class APICheckPlugin(openstack.CollectdPlugin):
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""" Class to check the status of OpenStack API services.
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"""
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OK = 0
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FAIL = 1
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UNKNOWN = 2
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# TODO(pasquier-s): add heat-cfn, nova_ec2, cinderv2, ceilometer, murano,
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# sahara
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RESOURCE_MAP = {
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'cinder': 'volumes',
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'glance': 'v1/images',
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'heat': 'stacks',
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'keystone': 'tenants',
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'neutron': 'v2.0/networks',
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'nova': 'flavors',
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}
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def check_api(self):
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""" Check the status of all the API services.
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Yields a list of dict items with 'service', 'status' (either OK,
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FAIL or UNKNOWN) and 'region' keys.
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"""
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catalog = self.service_catalog
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for service in catalog:
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if service['name'] not in self.RESOURCE_MAP:
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self.logger.notice("Don't know how to check service '%s'" %
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service['name'])
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status = self.UNKNOWN
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else:
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r = self.get(service['name'],
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self.RESOURCE_MAP[service['name']])
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if not r or r.status_code < 200 or r.status_code > 299:
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status = self.FAIL
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else:
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status = self.OK
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yield {
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'service': service['name'],
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'status': status,
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'region': service['region']
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}
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def read_callback(self):
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for item in self.check_api():
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value = collectd.Values(
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plugin=PLUGIN_NAME,
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plugin_instance=item['service'],
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type='gauge',
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type_instance=item['region'],
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interval=INTERVAL,
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# w/a for https://github.com/collectd/collectd/issues/716
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meta={'0': True}
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)
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if item['status'] == self.OK:
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value.values = [1]
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elif item['status'] == self.FAIL:
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value.values = [0]
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else:
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# skip if status is UNKNOWN
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continue
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value.dispatch()
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plugin = APICheckPlugin(collectd)
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def config_callback(conf):
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plugin.config_callback(conf)
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def read_callback():
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plugin.read_callback()
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collectd.register_config(config_callback)
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collectd.register_read(read_callback, INTERVAL)
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