panko/ceilometer/objectstore/swift.py
Lianhao Lu 0e26faeb69 Corrected import order
Enabled H306 in tox.ini and corrected the import order.

Change-Id: If77984e8c62b0ec0cfb3d068e9c1b0d4d7c3583d
2013-11-13 14:41:33 +08:00

135 lines
4.4 KiB
Python

# -*- encoding: utf-8 -*-
#
# Copyright © 2012 eNovance
#
# Author: Guillaume Pernot <gpernot@praksys.org>
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""Common code for working with object stores
"""
from __future__ import absolute_import
from urlparse import urljoin
from keystoneclient import exceptions
from oslo.config import cfg
from swiftclient import client as swift
from ceilometer.openstack.common.gettextutils import _
from ceilometer.openstack.common import log
from ceilometer.openstack.common import timeutils
from ceilometer import plugin
from ceilometer import sample
LOG = log.getLogger(__name__)
OPTS = [
cfg.StrOpt('reseller_prefix',
default='AUTH_',
help="Swift reseller prefix. Must be on par with "
"reseller_prefix in proxy-server.conf."),
]
cfg.CONF.register_opts(OPTS)
class _Base(plugin.PollsterBase):
CACHE_KEY_TENANT = 'tenants'
CACHE_KEY_HEAD = 'swift.head_account'
def _iter_accounts(self, ksclient, cache):
if self.CACHE_KEY_TENANT not in cache:
cache[self.CACHE_KEY_TENANT] = ksclient.tenants.list()
if self.CACHE_KEY_HEAD not in cache:
cache[self.CACHE_KEY_HEAD] = list(self._get_account_info(ksclient,
cache))
return iter(cache[self.CACHE_KEY_HEAD])
def _get_account_info(self, ksclient, cache):
try:
endpoint = ksclient.service_catalog.url_for(
service_type='object-store',
endpoint_type=cfg.CONF.service_credentials.os_endpoint_type)
except exceptions.EndpointNotFound:
LOG.debug(_("Swift endpoint not found"))
raise StopIteration()
for t in cache[self.CACHE_KEY_TENANT]:
yield (t.id, swift.head_account(self._neaten_url(endpoint, t.id),
ksclient.auth_token))
@staticmethod
def _neaten_url(endpoint, tenant_id):
"""Transform the registered url to standard and valid format.
"""
return urljoin(endpoint, '/v1/' + cfg.CONF.reseller_prefix + tenant_id)
class ObjectsPollster(_Base):
"""Iterate over all accounts, using keystone.
"""
def get_samples(self, manager, cache):
for tenant, account in self._iter_accounts(manager.keystone, cache):
yield sample.Sample(
name='storage.objects',
type=sample.TYPE_GAUGE,
volume=int(account['x-account-object-count']),
unit='object',
user_id=None,
project_id=tenant,
resource_id=tenant,
timestamp=timeutils.isotime(),
resource_metadata=None,
)
class ObjectsSizePollster(_Base):
"""Iterate over all accounts, using keystone.
"""
def get_samples(self, manager, cache):
for tenant, account in self._iter_accounts(manager.keystone, cache):
yield sample.Sample(
name='storage.objects.size',
type=sample.TYPE_GAUGE,
volume=int(account['x-account-bytes-used']),
unit='B',
user_id=None,
project_id=tenant,
resource_id=tenant,
timestamp=timeutils.isotime(),
resource_metadata=None,
)
class ObjectsContainersPollster(_Base):
"""Iterate over all accounts, using keystone.
"""
def get_samples(self, manager, cache):
for tenant, account in self._iter_accounts(manager.keystone, cache):
yield sample.Sample(
name='storage.objects.containers',
type=sample.TYPE_GAUGE,
volume=int(account['x-account-container-count']),
unit='container',
user_id=None,
project_id=tenant,
resource_id=tenant,
timestamp=timeutils.isotime(),
resource_metadata=None,
)