123 lines
4.1 KiB
Python
123 lines
4.1 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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from urlparse import urlparse
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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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FAIL = 0
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OK = 1
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UNKNOWN = 2
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# TODO: nova_ec2, sahara
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CHECK_MAP = {
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'keystone': {'path': '/', 'expect': 300}, # 300 Multiple Choices
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'heat': {'path': '/', 'expect': 300}, # 300 Multiple Choices
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'heat-cfn': {'path': '/', 'expect': 300}, # 300 Multiple Choices
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'glance': {'path': '/', 'expect': 300}, # 300 Multiple Choices
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'cinder': {'path': '/', 'expect': 200},
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'cinderv2': {'path': '/', 'expect': 200, 'name': 'cinder-v2'},
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'neutron': {'path': '/', 'expect': 200},
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'nova': {'path': '/', 'expect': 200},
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# Ceilometer requires authentication for all paths
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'ceilometer': {'path': 'v2/capabilities', 'expect': 200, 'auth': True},
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'swift': {'path': 'healthcheck', 'expect': 200},
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'swift_s3': {'path': 'healthcheck', 'expect': 200, 'name': 'swift-s3'},
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}
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def _service_url(self, endpoint, path):
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url = urlparse(endpoint)
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u = '%s://%s' % (url.scheme, url.netloc)
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if path != '/':
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u = '%s/%s' % (u, path)
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return u
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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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name = service['name']
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if name not in self.CHECK_MAP:
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self.logger.notice("No check found for service '%s', skipping it" % name)
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status = self.UNKNOWN
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else:
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check = self.CHECK_MAP[name]
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url = self._service_url(service['url'], check['path'])
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r = self.raw_get(url, token_required=check.get('auth', False))
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if r is None or r.status_code != check['expect']:
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def _status(ret):
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return 'N/A' if r is None else r.status_code
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self.logger.notice(
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"Service %s check failed "
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"(returned '%s' but expected '%s')" % (
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name, _status(r), check['expect'])
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)
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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': check.get('name', 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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if item['status'] == self.UNKNOWN:
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# skip if status is UNKNOWN
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continue
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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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values=[item['status']],
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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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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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