329 lines
12 KiB
Python
329 lines
12 KiB
Python
#!/usr/bin/env python
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# -*- encoding: utf-8 -*-
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# Openstack Monitoring script for Sensu / Nagios
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#
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# Copyright © 2013-2014 eNovance <licensing@enovance.com>
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#
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# Author: Mehdi Abaakouk <mehdi.abaakouk@enovance.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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import argparse
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import datetime
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import logging
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import os
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import time
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import urlparse
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from cinderclient.client import Client # noqa
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from cinderclient import exceptions
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from oschecks import utils
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def _check_cinder_api():
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cinder = utils.Cinder()
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cinder.add_argument('-w', dest='warning', type=int, default=5,
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help='Warning timeout for cinder APIs calls')
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cinder.add_argument('-c', dest='critical', type=int, default=10,
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help='Critical timeout for cinder APIs calls')
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options, args, client = cinder.setup()
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def quotas_list():
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return client.quotas.get(options.os_tenant_name)
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elapsed, quotas = utils.timeit(quotas_list)
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if not quotas:
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utils.critical("Unable to contact cinder API.")
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if elapsed > options.critical:
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utils.critical("Get quotas took more than %d seconds, "
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"it's too long.|response_time=%d" %
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(options.critical, elapsed))
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elif elapsed > options.warning:
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utils.warning("Get quotas took more than %d seconds, "
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"it's too long.|response_time=%d" %
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(options.warning, elapsed))
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else:
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utils.ok("Get quotas, cinder API is working: "
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"list quota in %d seconds.|response_time=%d" %
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(elapsed, elapsed))
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def check_cinder_api():
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utils.safe_run(_check_cinder_api)
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class Novautils(object):
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DAEMON_DEFAULT_PORT = 8776
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def __init__(self, nova_client):
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self.nova_client = nova_client
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self.msgs = []
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self.start = self.totimestamp()
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self.notifications = ["volume_creation_time=%s" % self.start]
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self.volume = None
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self.connection_done = False
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# python has no "toepoch" method: http://bugs.python.org/issue2736
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# now, after checking http://stackoverflow.com/a/16307378,
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# and http://stackoverflow.com/a/8778548 made my mind to this approach
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@staticmethod
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def totimestamp(dt=None, epoch=datetime.datetime(1970, 1, 1)):
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if not dt:
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dt = datetime.datetime.utcnow()
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td = dt - epoch
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# return td.total_seconds()
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return int((td.microseconds +
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(td.seconds + td.days * 24 * 3600) * 10**6) / 1e6)
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def check_connection(self, force=False):
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if not self.connection_done or force:
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try:
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# force a connection to the server
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self.connection_done = self.nova_client.limits.get()
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except Exception as e:
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utils.critical("Cannot connect to cinder: %s" % e)
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def get_duration(self):
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return self.totimestamp() - self.start
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def mangle_url(self, url):
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# This first connection populate the structure we need inside
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# the object. This does not cost anything if a connection has
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# already been made.
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self.check_connection()
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try:
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endpoint_url = urlparse.urlparse(url)
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except Exception as e:
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utils.unknown("you must provide an endpoint_url in the form"
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"<scheme>://<url>/ (%s)" % e)
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scheme = endpoint_url.scheme
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if scheme is None:
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utils.unknown("you must provide an endpoint_url in the form"
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"<scheme>://<url>/ (%s)" % e)
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catalog_url = None
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try:
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catalog_url = urlparse.urlparse(
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self.nova_client.client.management_url)
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except Exception as e:
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utils.unknown("unknown error parsing the catalog url : %s" % e)
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port = endpoint_url.port
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if port is None:
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if catalog_url.port is None:
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port = self.DAEMON_DEFAULT_PORT
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else:
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port = catalog_url.port
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netloc = "%s:%i" % (endpoint_url.hostname, port)
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url = urlparse.urlunparse([scheme,
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netloc,
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catalog_url.path,
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catalog_url.params,
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catalog_url.query,
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catalog_url.fragment])
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self.nova_client.client.management_url = url
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def check_existing_volume(self, volume_name, delete):
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count = 0
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for s in self.nova_client.volumes.list():
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if s.display_name == volume_name:
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if delete:
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# asynchronous call, we do not check that it worked
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s.delete()
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count += 1
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if count > 0:
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if delete:
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self.notifications.append("Found '%s' present %d time(s)"
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% (volume_name, count))
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else:
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self.msgs.append("Found '%s' present %d time(s). " %
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(volume_name, count) +
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"Won't create test volume. "
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"Please check and delete.")
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def create_volume(self, volume_name, size, availability_zone, volume_type):
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if not self.msgs:
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try:
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conf = {'display_name': volume_name,
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'size': size}
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if volume_type:
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conf['volume_type'] = volume_type
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if availability_zone:
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conf['availability_zone'] = availability_zone
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self.volume = self.nova_client.volumes.create(**conf)
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except Exception as e:
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self.msgs.append("Cannot create the volume %s (%s)"
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% (volume_name, e))
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def volume_ready(self, timeout):
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if not self.msgs:
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timer = 0
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while self.volume.status != "available":
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if timer >= timeout:
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self.msgs.append("Cannot create the volume.")
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break
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time.sleep(1)
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timer += 1
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try:
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self.volume.get()
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except Exception as e:
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self.msgs.append("Problem getting the status of "
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"the volume: %s" % e)
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break
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def delete_volume(self):
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if not self.msgs or self.volume is not None:
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try:
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self.volume.delete()
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except Exception as e:
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self.msgs.append("Problem deleting the volume: %s" % e)
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def volume_deleted(self, timeout):
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deleted = False
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timer = 0
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while not deleted and not self.msgs:
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time.sleep(1)
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if timer >= timeout:
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self.msgs.append("Could not delete the volume within "
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"%d seconds" % timer)
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break
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timer += 1
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try:
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self.volume.get()
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except exceptions.NotFound:
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deleted = True
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except Exception as e:
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self.msgs.append("Cannot delete the volume (%s)" % e)
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break
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def _check_cinder_volume():
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parser = argparse.ArgumentParser(
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description='Check an OpenStack Keystone server.')
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parser.add_argument('--auth_url', metavar='URL', type=str,
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default=os.getenv('OS_AUTH_URL'),
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help='Keystone URL')
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parser.add_argument('--username', metavar='username', type=str,
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default=os.getenv('OS_USERNAME'),
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help='username to use for authentication')
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parser.add_argument('--password', metavar='password', type=str,
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default=os.getenv('OS_PASSWORD'),
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help='password to use for authentication')
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parser.add_argument('--tenant', metavar='tenant', type=str,
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default=os.getenv('OS_TENANT_NAME'),
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help='tenant name to use for authentication')
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parser.add_argument('--endpoint_url', metavar='endpoint_url', type=str,
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help='Override the catalog endpoint.')
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parser.add_argument('--endpoint_type', metavar='endpoint_type', type=str,
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default="publicURL",
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help="""Endpoint type in the catalog request. """
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"""Public by default.""")
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parser.add_argument('--force_delete', action='store_true',
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help="""If matching volumes are found, delete """
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"""them and add a notification in the """
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"""message instead of getting out in """
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"""critical state.""")
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parser.add_argument('--api_version', metavar='api_version', type=str,
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default='1',
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help='Version of the API to use. 1 by default.')
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parser.add_argument('--timeout', metavar='timeout', type=int,
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default=120,
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help="""Max number of second to create/delete a """
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"""volume (120 by default).""")
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parser.add_argument('--volume_name', metavar='volume_name', type=str,
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default="monitoring_test",
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help="""Name of the volume to create """
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"""(monitoring_test by default)""")
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parser.add_argument('--volume_size', metavar='volume_size', type=int,
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default=1,
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help='Size of the volume to create (1 GB by default)')
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parser.add_argument('--volume_type', metavar='volume_type', type=str,
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default=None,
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help='With multiple backends, choose the volume type.')
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parser.add_argument('--availability_zone', metavar='availability_zone',
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type=str,
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default=None,
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help='Specify availability zone.')
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parser.add_argument('--verbose', action='count',
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help='Print requests on stderr.')
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args = parser.parse_args()
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# this shouldn't raise any exception as no connection is done when
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# creating the object. But It may change, so I catch everything.
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try:
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nova_client = Client(args.api_version,
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username=args.username,
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project_id=args.tenant,
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api_key=args.password,
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auth_url=args.auth_url,
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endpoint_type=args.endpoint_type,
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http_log_debug=args.verbose)
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except Exception as e:
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utils.critical("Error creating cinder communication object: %s" % e)
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util = Novautils(nova_client)
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if args.verbose:
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ch = logging.StreamHandler()
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nova_client.client._logger.setLevel(logging.DEBUG)
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nova_client.client._logger.addHandler(ch)
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# Initiate the first connection and catch error.
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util.check_connection()
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if args.endpoint_url:
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util.mangle_url(args.endpoint_url)
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# after mangling the url, the endpoint has changed. Check that
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# it's valid.
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util.check_connection(force=True)
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util.check_existing_volume(args.volume_name, args.force_delete)
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util.create_volume(args.volume_name,
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args.volume_size,
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args.availability_zone,
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args.volume_type)
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util.volume_ready(args.timeout)
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util.delete_volume()
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util.volume_deleted(args.timeout)
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if util.msgs:
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utils.critical(", ".join(util.msgs))
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duration = util.get_duration()
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notification = ""
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if util.notifications:
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notification = "(" + ", ".join(util.notifications) + ")"
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utils.ok("Volume spawned and deleted in %d seconds %s| time=%d"
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% (duration, notification, duration))
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def check_cinder_volume():
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utils.safe_run(_check_cinder_volume)
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