49c4fb39f8
Given that my blueprint is not publicly available, I summarize it here. Kwapi (kilowatt API) contains the following modules: - Drivers: receive values from wattmeters and forward them on a bus (ZeroMQ). Wattmeter drivers are specific to each wattmeters (Wattsup, OmegaWatt, etc). - Plugins: listen the bus and process received data. Currently, there is two plugins: the ceilometer plugin (REST API) and a visualization plugin (build graphs with RRDtool). Kwapi is part of the XLcloud project (HPC cloud). http://www.xlcloud.org Repository: https://github.com/stackforge/kwapi Change-Id: Ieaaa1db9c8c569b6ee9f0815e03879f8b3f3e282
102 lines
3.5 KiB
Python
102 lines
3.5 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Author: François Rossigneux <francois.rossigneux@inria.fr>
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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 datetime
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from keystoneclient.v2_0 import client as ksclient
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import requests
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from ceilometer import counter
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from ceilometer.central import plugin
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from ceilometer.openstack.common import cfg
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class KwapiClient(object):
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"""Kwapi API client."""
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def __init__(self, url, token=None):
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"""Initializes client."""
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self.url = url
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self.token = token
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def iter_probes(self):
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"""Returns a list of dicts describing all probes."""
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probes_url = self.url + '/probes/'
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headers = {}
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if self.token is not None:
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headers = {'X-Auth-Token': self.token}
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request = requests.get(probes_url, headers=headers)
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message = request.json
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probes = message['probes']
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for key, value in probes.iteritems():
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probe_dict = value
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probe_dict['id'] = key
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yield probe_dict
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class _Base(plugin.CentralPollster):
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"""Base class for the Kwapi pollster, derived from CentralPollster."""
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@staticmethod
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def get_kwapi_client():
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"""Returns a KwapiClient configured with the proper url and token."""
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keystone = ksclient.Client(username=cfg.CONF.os_username,
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password=cfg.CONF.os_password,
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tenant_id=cfg.CONF.os_tenant_id,
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tenant_name=cfg.CONF.os_tenant_name,
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auth_url=cfg.CONF.os_auth_url)
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endpoint = keystone.service_catalog.url_for(service_type='energy',
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endpoint_type='internalURL'
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)
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return KwapiClient(endpoint, keystone.auth_token)
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def iter_probes(self):
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"""Iterate over all probes."""
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client = self.get_kwapi_client()
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return client.iter_probes()
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class KwapiPollster(_Base):
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"""Kwapi pollster derived from the base class."""
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def get_counters(self, manager, context):
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"""Returns all counters."""
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for probe in self.iter_probes():
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yield counter.Counter(
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name='energy',
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type=counter.TYPE_CUMULATIVE,
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unit='kWh',
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volume=probe['kwh'],
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user_id=None,
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project_id=None,
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resource_id=probe['id'],
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timestamp=datetime.datetime.fromtimestamp(
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probe['timestamp']).isoformat(),
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resource_metadata={}
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)
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yield counter.Counter(
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name='power',
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type=counter.TYPE_GAUGE,
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unit='W',
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volume=probe['w'],
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user_id=None,
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project_id=None,
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resource_id=probe['id'],
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timestamp=datetime.datetime.fromtimestamp(
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probe['timestamp']).isoformat(),
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resource_metadata={}
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)
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