120 lines
3.8 KiB
Python
120 lines
3.8 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# Author: François Rossigneux <francois.rossigneux@inria.fr>
|
|
#
|
|
# 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.
|
|
|
|
import datetime
|
|
from oslo.config import cfg
|
|
|
|
from keystoneclient import exceptions
|
|
import requests
|
|
|
|
from ceilometer.central import plugin
|
|
from ceilometer import sample
|
|
from ceilometer.openstack.common.gettextutils import _
|
|
from ceilometer.openstack.common import log
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
|
|
class KwapiClient(object):
|
|
"""Kwapi API client."""
|
|
|
|
def __init__(self, url, token=None):
|
|
"""Initializes client."""
|
|
self.url = url
|
|
self.token = token
|
|
|
|
def iter_probes(self):
|
|
"""Returns a list of dicts describing all probes."""
|
|
probes_url = self.url + '/probes/'
|
|
headers = {}
|
|
if self.token is not None:
|
|
headers = {'X-Auth-Token': self.token}
|
|
request = requests.get(probes_url, headers=headers)
|
|
message = request.json()
|
|
probes = message['probes']
|
|
for key, value in probes.iteritems():
|
|
probe_dict = value
|
|
probe_dict['id'] = key
|
|
yield probe_dict
|
|
|
|
|
|
class _Base(plugin.CentralPollster):
|
|
"""Base class for the Kwapi pollster, derived from CentralPollster."""
|
|
|
|
@staticmethod
|
|
def get_kwapi_client(ksclient):
|
|
"""Returns a KwapiClient configured with the proper url and token."""
|
|
endpoint = ksclient.service_catalog.url_for(
|
|
service_type='energy',
|
|
endpoint_type=cfg.CONF.service_credentials.os_endpoint_type)
|
|
return KwapiClient(endpoint, ksclient.auth_token)
|
|
|
|
CACHE_KEY_PROBE = 'kwapi.probes'
|
|
|
|
def _iter_probes(self, ksclient, cache):
|
|
"""Iterate over all probes."""
|
|
if self.CACHE_KEY_PROBE not in cache:
|
|
cache[self.CACHE_KEY_PROBE] = self._get_probes(ksclient)
|
|
return iter(cache[self.CACHE_KEY_PROBE])
|
|
|
|
def _get_probes(self, ksclient):
|
|
try:
|
|
client = self.get_kwapi_client(ksclient)
|
|
except exceptions.EndpointNotFound:
|
|
LOG.debug(_("Kwapi endpoint not found"))
|
|
return []
|
|
return list(client.iter_probes())
|
|
|
|
|
|
class EnergyPollster(_Base):
|
|
"""Measures energy consumption."""
|
|
|
|
def get_samples(self, manager, cache):
|
|
"""Returns all samples."""
|
|
for probe in self._iter_probes(manager.keystone, cache):
|
|
yield sample.Sample(
|
|
name='energy',
|
|
type=sample.TYPE_CUMULATIVE,
|
|
unit='kWh',
|
|
volume=probe['kwh'],
|
|
user_id=None,
|
|
project_id=None,
|
|
resource_id=probe['id'],
|
|
timestamp=datetime.datetime.fromtimestamp(
|
|
probe['timestamp']).isoformat(),
|
|
resource_metadata={}
|
|
)
|
|
|
|
|
|
class PowerPollster(_Base):
|
|
"""Measures power consumption."""
|
|
|
|
def get_samples(self, manager, cache):
|
|
"""Returns all samples."""
|
|
for probe in self._iter_probes(manager.keystone, cache):
|
|
yield sample.Sample(
|
|
name='power',
|
|
type=sample.TYPE_GAUGE,
|
|
unit='W',
|
|
volume=probe['w'],
|
|
user_id=None,
|
|
project_id=None,
|
|
resource_id=probe['id'],
|
|
timestamp=datetime.datetime.fromtimestamp(
|
|
probe['timestamp']).isoformat(),
|
|
resource_metadata={}
|
|
)
|