3d4d078e51
Ceilometer uses the admin URL registered in keystone to poll object store. Usually the url is like: http://<host>:<port>, in some cases, user might register the url like: http://<host>:<port>/v1 Ceilometer shall get the url registered in keystone and populate it to the http://<host>:<port>/v1/AUTH_%(tenant_id)s style Change the url population process the enhance the fault-tolerant capability of Ceilometer Change-Id: I3ec6ab0c330e35a2fd6bab36b8a2f43aee883b6d Fixes: Bug 1183704
131 lines
4.0 KiB
Python
131 lines
4.0 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 eNovance
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#
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# Author: Guillaume Pernot <gpernot@praksys.org>
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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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"""Common code for working with object stores
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"""
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from __future__ import absolute_import
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import abc
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from oslo.config import cfg
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from swiftclient import client as swift
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from keystoneclient import exceptions
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from ceilometer import counter
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from ceilometer.openstack.common import log
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from ceilometer.openstack.common import timeutils
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from ceilometer import plugin
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from urlparse import urljoin
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LOG = log.getLogger(__name__)
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OPTS = [
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cfg.StrOpt('reseller_prefix',
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default='AUTH_',
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help="Swift reseller prefix. Must be on par with "
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"reseller_prefix in proxy-server.conf."),
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]
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cfg.CONF.register_opts(OPTS)
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class _Base(plugin.PollsterBase):
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__metaclass__ = abc.ABCMeta
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@staticmethod
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@abc.abstractmethod
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def iter_accounts(ksclient):
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"""Iterate over all accounts, yielding (tenant_id, stats) tuples."""
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def get_counters(self, manager):
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for tenant, account in self.iter_accounts(manager.keystone):
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yield counter.Counter(
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name='storage.objects',
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type=counter.TYPE_GAUGE,
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volume=int(account['x-account-object-count']),
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unit='object',
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user_id=None,
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project_id=tenant,
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resource_id=tenant,
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timestamp=timeutils.isotime(),
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resource_metadata=None,
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)
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yield counter.Counter(
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name='storage.objects.size',
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type=counter.TYPE_GAUGE,
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volume=int(account['x-account-bytes-used']),
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unit='B',
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user_id=None,
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project_id=tenant,
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resource_id=tenant,
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timestamp=timeutils.isotime(),
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resource_metadata=None,
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)
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yield counter.Counter(
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name='storage.objects.containers',
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type=counter.TYPE_GAUGE,
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volume=int(account['x-account-container-count']),
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unit='container',
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user_id=None,
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project_id=tenant,
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resource_id=tenant,
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timestamp=timeutils.isotime(),
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resource_metadata=None,
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)
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class SwiftPollster(_Base):
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"""Iterate over all accounts, using keystone.
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"""
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@staticmethod
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def get_counter_names():
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return ['storage.objects',
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'storage.objects.size',
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'storage.objects.containers']
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@staticmethod
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def iter_accounts(ksclient):
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try:
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endpoint = ksclient.service_catalog.url_for(
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service_type='object-store',
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endpoint_type='adminURL')
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except exceptions.EndpointNotFound:
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LOG.debug(_("Swift endpoint not found"))
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return
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for t in ksclient.tenants.list():
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yield (t.id, swift.head_account(SwiftPollster.
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_neaten_url(endpoint, t.id),
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ksclient.auth_token))
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# Transform the registered url to standard and valid format.
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@staticmethod
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def _neaten_url(endpoint, tenant_id):
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path = 'v1/' + cfg.CONF.reseller_prefix + tenant_id
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# remove the tail '/' of the endpoint.
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if endpoint.endswith('/'):
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endpoint = endpoint[:-1]
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return urljoin(endpoint, path)
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