271 lines
10 KiB
Python
271 lines
10 KiB
Python
#!/usr/bin/env python
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# -*- coding: 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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# Authors: Mehdi Abaakouk <mehdi.abaakouk@enovance.com>
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# Sofer Athlan-Guyot <sofer.athlan@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 re
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import urlparse
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from keystoneclient.v2_0 import client
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from neutronclient.neutron import client as neutron
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from oschecks import utils
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def _check_neutron_api():
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neutron = utils.Neutron()
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neutron.add_argument('-w', dest='warning', type=int, default=5,
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help='Warning timeout for neutron APIs calls')
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neutron.add_argument('-c', dest='critical', type=int, default=10,
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help='Critical timeout for neutron APIs calls')
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options, args, client = neutron.setup()
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def network_list():
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try:
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return client.list_networks()
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except Exception as ex:
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utils.critical(str(ex))
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elapsed, networks = utils.timeit(network_list)
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if not networks or len(networks.get('networks', [])) <= 0:
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utils.critical("Unable to contact neutron API.")
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if elapsed > options.critical:
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utils.critical("Get networks 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 networks 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 networks, neutron API is working: "
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"list %d networks in %d seconds.|response_time=%d" %
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(len(networks['networks']), elapsed, elapsed))
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def check_neutron_api():
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utils.safe_run(_check_neutron_api)
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class NeutronUtils(object):
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DAEMON_DEFAULT_PORT = 9696
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def __init__(self, client, tenant_id):
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self.client = client
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self.msgs = []
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self.start = self.totimestamp()
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self.notifications = ["floatingip_creation_time=%s" % self.start]
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self.connection_done = False
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self.all_floating_ips = []
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self.fip = None
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self.network_id = None
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self.tenant_id = tenant_id
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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.client.list_ports()
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except Exception as e:
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utils.critical("Cannot connect to neutron: %s\n" % e)
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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.client.httpclient.endpoint_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.client.httpclient.endpoint_override = url
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def get_duration(self):
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return self.totimestamp() - self.start
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def list_floating_ips(self):
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if not self.all_floating_ips:
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for floating_ip in self.client.list_floatingips(
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fields=['floating_ip_address', 'id'],
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tenant_id=self.tenant_id)['floatingips']:
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self.all_floating_ips.append(floating_ip)
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return self.all_floating_ips
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def check_existing_floatingip(self, floating_ip=None, delete=False):
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count = 0
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found_ips = []
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for ip in self.list_floating_ips():
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if floating_ip == 'all' or floating_ip.match(
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ip['floating_ip_address']):
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if delete:
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# asynchronous call, we do not check that it worked
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self.client.delete_floatingip(ip['id'])
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found_ips.append(ip['floating_ip_address'])
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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 %d ip(s): %s" %
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(count, '{' + ', '.join(
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found_ips) + '}'))
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else:
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self.msgs.append("Found %d ip(s): %s. " %
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(count, ', '.join(found_ips)) +
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"Won't create test floating ip. "
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"Please check and delete.")
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def get_network_id(self, ext_network_name):
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if not self.msgs:
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if not self.network_id:
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try:
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self.network_id = self.client.list_networks(
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name=ext_network_name, fields='id')['networks'][0]['id']
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except Exception:
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self.msgs.append("Cannot find ext network named '%s'."
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% ext_network_name)
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def create_floating_ip(self):
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if not self.msgs:
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try:
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body = {'floatingip': {'floating_network_id': self.network_id}}
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self.fip = self.client.create_floatingip(body=body)
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self.notifications.append(
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"fip=%s" % self.fip['floatingip']['floating_ip_address'])
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except Exception as e:
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self.msgs.append("Cannot create a floating ip: %s" % e)
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def delete_floating_ip(self):
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if not self.msgs:
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try:
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self.client.delete_floatingip(
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self.fip['floatingip']['id'])
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except Exception:
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self.msgs.append("Cannot remove floating ip %s"
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% self.fip['floatingip']['id'])
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def fip_type(string):
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if string == 'all':
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return 'all'
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else:
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return re.compile(string)
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def _check_neutron_floating_ip():
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neutron = utils.Neutron()
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neutron.add_argument('--endpoint_url', metavar='endpoint_url', type=str,
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help='Override the catalog endpoint.')
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neutron.add_argument('--force_delete', action='store_true',
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help=('If matching floating ip are found, delete '
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'them and add a notification in the message '
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'instead of getting out in critical state.'))
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neutron.add_argument('--floating_ip', metavar='floating_ip', type=fip_type,
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default=None,
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help=('Regex of IP(s) to check for existance. '
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'This value can be "all" for conveniance '
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'(match all ip). This permit to avoid certain '
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'floating ip to be kept. Its default value '
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'prevents the removal of any existing '
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'floating ip'))
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neutron.add_argument('--ext_network_name', metavar='ext_network_name',
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type=str, default='public',
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help=('Name of the "public" external network '
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'(public by default)'))
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options, args, client = neutron.setup()
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project = (options.os_project_id if options.os_project_id else
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options.os_project_name)
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tenant = (options.os_tenant_id if options.os_tenant_id else
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options.os_tenant_name)
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util = NeutronUtils(client, tenant or project)
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# Initiate the first connection and catch error.
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util.check_connection()
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if options.endpoint_url:
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util.mangle_url(options.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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if options.floating_ip:
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util.check_existing_floatingip(options.floating_ip,
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options.force_delete)
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util.get_network_id(options.ext_network_name)
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util.create_floating_ip()
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util.delete_floating_ip()
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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("Floating ip created and deleted %s| time=%d"
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% (notification, duration))
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def check_neutron_floating_ip():
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utils.safe_run(_check_neutron_floating_ip)
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