Source code for ceilometer.hardware.pollsters.disk
#
# Copyright 2013 ZHAW SoE
# Copyright 2014 Intel Corp.
#
# Authors: Lucas Graf <graflu0@students.zhaw.ch>
# Toni Zehnder <zehndton@students.zhaw.ch>
# Lianhao Lu <lianhao.lu@intel.com>
#
# 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.
from ceilometer.hardware import plugin
from ceilometer.hardware.pollsters import util
from ceilometer import sample
class _Base(plugin.HardwarePollster):
CACHE_KEY = 'disk'
def generate_one_sample(self, host, c_data):
value, metadata, extra = c_data
res_id = extra.get('resource_id') or host.hostname
if metadata.get('device'):
res_id = res_id + ".%s" % metadata.get('device')
return util.make_sample_from_host(host,
name=self.IDENTIFIER,
sample_type=sample.TYPE_GAUGE,
unit='B',
volume=value,
res_metadata=metadata,
extra=extra,
resource_id=res_id)
[docs]class DiskTotalPollster(_Base):
IDENTIFIER = 'disk.size.total'
[docs]class DiskUsedPollster(_Base):
IDENTIFIER = 'disk.size.used'