a10773e413
Add a dictionary as a data cache for the pollsters, creating it outside of the loop where they are invoked and passing it to them. Future changesets will include changes to the pollsters to put data in the cache. blueprint one-meter-per-plugin Change-Id: Ie65526dfe65a8880ad8683b62fae62f8e7f9e69b Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
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, cache):
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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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