Ceilometer to export Prometheus metrics
With this patch, ceilometer-polling is able to expose metrics itself in Prometheus format so they can be scraped directly from a Prometheus instance. Change-Id: I68d1dc96a89e57cafa9dba207d92403a1e156fe6
This commit is contained in:
jlarriba
parent
a6e43add90
commit
7289278dad
@ -41,6 +41,7 @@ from ceilometer import keystone_client
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from ceilometer import messaging
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from ceilometer import messaging
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from ceilometer.polling import dynamic_pollster
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from ceilometer.polling import dynamic_pollster
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from ceilometer.polling import plugin_base
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from ceilometer.polling import plugin_base
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from ceilometer.polling import prom_exporter
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from ceilometer.publisher import utils as publisher_utils
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from ceilometer.publisher import utils as publisher_utils
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from ceilometer import utils
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from ceilometer import utils
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@ -77,6 +78,19 @@ POLLING_OPTS = [
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'recommended that ceilometer be configured with a '
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'recommended that ceilometer be configured with a '
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'caching backend to reduce the number of calls '
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'caching backend to reduce the number of calls '
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'made to keystone.'),
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'made to keystone.'),
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cfg.BoolOpt('enable_notifications',
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default=True,
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help='Whether the polling service should be sending '
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'notifications to RabbitMQ after polling cycles.'),
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cfg.BoolOpt('enable_prometheus_exporter',
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default=False,
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help='Allow this ceilometer polling instance to '
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'expose directly the retrieved metrics in Prometheus '
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'format.'),
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cfg.ListOpt('prometheus_listen_addresses',
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default=["127.0.0.1:9101"],
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help='A list of ipaddr:port combinations on which '
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'the exported metrics will be exposed.')
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]
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]
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@ -282,11 +296,14 @@ class PollingTask(object):
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exc_info=True)
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exc_info=True)
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def _send_notification(self, samples):
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def _send_notification(self, samples):
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self.manager.notifier.sample(
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if self.manager.conf.polling.enable_notifications:
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{},
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self.manager.notifier.sample(
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'telemetry.polling',
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{},
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{'samples': samples}
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'telemetry.polling',
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)
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{'samples': samples}
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)
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if self.manager.conf.polling.enable_prometheus_exporter:
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prom_exporter.collect_metrics(samples)
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class AgentManager(cotyledon.Service):
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class AgentManager(cotyledon.Service):
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@ -342,10 +359,17 @@ class AgentManager(cotyledon.Service):
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self.group_prefix = ('%s-%s' % (namespace_prefix, group_prefix)
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self.group_prefix = ('%s-%s' % (namespace_prefix, group_prefix)
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if group_prefix else namespace_prefix)
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if group_prefix else namespace_prefix)
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self.notifier = oslo_messaging.Notifier(
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if self.conf.polling.enable_notifications:
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messaging.get_transport(self.conf),
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self.notifier = oslo_messaging.Notifier(
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driver=self.conf.publisher_notifier.telemetry_driver,
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messaging.get_transport(self.conf),
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publisher_id="ceilometer.polling")
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driver=self.conf.publisher_notifier.telemetry_driver,
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publisher_id="ceilometer.polling")
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if self.conf.polling.enable_prometheus_exporter:
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for addr in self.conf.polling.prometheus_listen_addresses:
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address = addr.split(":")
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if len(address) == 2:
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prom_exporter.export(address[0], address[1])
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self._keystone = None
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self._keystone = None
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self._keystone_last_exception = None
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self._keystone_last_exception = None
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143
ceilometer/polling/prom_exporter.py
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143
ceilometer/polling/prom_exporter.py
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@ -0,0 +1,143 @@
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#
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# Copyright 2024 Juan Larriba
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# Copyright 2024 Red Hat, Inc
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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 prometheus_client as prom
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CEILOMETER_REGISTRY = prom.CollectorRegistry()
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def export(prometheus_iface, prometheus_port):
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prom.start_http_server(port=int(prometheus_port),
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addr=prometheus_iface,
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registry=CEILOMETER_REGISTRY)
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def collect_metrics(samples):
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for sample in samples:
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name = "ceilometer_" + sample['counter_name'].replace('.', '_')
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type = sample['counter_type']
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value = sample['counter_volume']
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labels = _gen_labels(sample)
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metric = CEILOMETER_REGISTRY._names_to_collectors.get(name, None)
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if metric is None:
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if type == "cumulative":
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metric = prom.Counter(name=name, documentation="",
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labelnames=labels['keys'],
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registry=CEILOMETER_REGISTRY)
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metric.labels(*labels['values']).inc(value)
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if type == "gauge" or type == "delta":
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metric = prom.Gauge(name=name, documentation="",
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labelnames=labels['keys'],
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registry=CEILOMETER_REGISTRY)
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metric.labels(*labels['values']).set(value)
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else:
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if type == 'cumulative':
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metric.labels(*labels['values']).inc(value)
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elif type == 'gauge' or type == 'delta':
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metric.labels(*labels['values']).set(value)
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def _gen_labels(sample):
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labels = dict(keys=[], values=[])
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cNameShards = sample['counter_name'].split(".")
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ctype = ''
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plugin = cNameShards[0]
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pluginVal = sample['resource_id']
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if len(cNameShards) > 2:
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pluginVal = cNameShards[2]
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if len(cNameShards) > 1:
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ctype = cNameShards[1]
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else:
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ctype = cNameShards[0]
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labels['keys'].append(plugin)
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labels['values'].append(pluginVal)
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labels['keys'].append("publisher")
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labels['values'].append("ceilometer")
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labels['keys'].append("type")
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labels['values'].append(ctype)
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index = 3
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if (sample.get('counter_name', '') != '' and
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sample.get('counter_name') is not None):
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labels['keys'].append("counter")
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labels['values'].append(sample['counter_name'])
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index += 1
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if (sample.get('project_id', '') != '' and
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sample.get('project_id') is not None):
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labels['keys'].append("project")
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labels['values'].append(sample['project_id'])
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index += 1
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if (sample.get('project_name', '') != '' and
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sample.get('project_name') is not None):
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labels['keys'].append("project_name")
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labels['values'].append(sample['project_name'])
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index += 1
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if (sample.get('user_id', '') != '' and
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sample.get('user_id') is not None):
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labels['keys'].append("user")
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labels['values'].append(sample['user_id'])
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index += 1
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if (sample.get('user_name', '') != '' and
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sample.get('user_name') is not None):
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labels['keys'].append("user_name")
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labels['values'].append(sample['user_name'])
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index += 1
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if (sample.get('counter_unit', '') != '' and
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sample.get('counter_unit') is not None):
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labels['keys'].append("unit")
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labels['values'].append(sample['counter_unit'])
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index += 1
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if (sample.get('resource_id', '') != '' and
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sample.get('resource_id') is not None):
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labels['keys'].append("resource")
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labels['values'].append(sample['resource_id'])
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index += 1
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if (sample.get('resource_metadata', '') != '' and
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sample.get('resource_metadata') is not None):
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if (sample['resource_metadata'].get('host', '') != ''):
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labels['keys'].append("vm_instance")
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labels['values'].append(sample['resource_metadata']['host'])
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index += 1
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if (sample['resource_metadata'].get('display_name', '') != ''):
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labels['keys'].append("resource_name")
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labels['values'].append(sample['resource_metadata']
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['display_name'])
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if (sample['resource_metadata'].get('name', '') != ''):
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labels['keys'].append("resource_name")
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if (labels['values'][index] if index < len(labels['values'])
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else '' != ''):
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labels['values'].append(labels['values'][index] + ":" +
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sample['resource_metadata']['name'])
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else:
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labels['values'].append(sample['resource_metadata']['name'])
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return labels
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238
ceilometer/tests/unit/test_prom_exporter.py
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238
ceilometer/tests/unit/test_prom_exporter.py
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@ -0,0 +1,238 @@
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#
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# Copyright 2022 Red Hat, Inc
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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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"""Tests for ceilometer/polling/prom_exporter.py"""
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from oslotest import base
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from unittest import mock
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from unittest.mock import call
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from ceilometer.polling import manager
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from ceilometer.polling import prom_exporter
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from ceilometer import service
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COUNTER_SOURCE = 'testsource'
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class TestPromExporter(base.BaseTestCase):
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test_data = [
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{
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'source': 'openstack',
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'counter_name': 'disk.device.read.latency',
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'counter_type': 'cumulative',
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'counter_unit': 'ns',
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'counter_volume': 132128682,
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'user_id': '6e7d71415cd5401cbe103829c9c5dec2',
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'user_name': None,
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'project_id': 'd965489b7f894cbda89cd2e25bfd85a0',
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'project_name': None,
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'resource_id': 'e536fff6-b20d-4aa5-ac2f-d15ac8b3af63-vda',
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'timestamp': '2024-06-20T09:32:36.521082',
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'resource_metadata': {
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'display_name': 'myserver',
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'name': 'instance-00000002',
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'instance_id': 'e536fff6-b20d-4aa5-ac2f-d15ac8b3af63',
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'instance_type': 'tiny',
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'host': 'e0d297f5df3b62ec73c8d42b',
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'instance_host': 'devstack',
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'flavor': {
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'id': '4af9ac72-5787-4f86-8644-0faa87ce7c83',
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'name': 'tiny',
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'vcpus': 1,
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'ram': 512,
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'disk': 1,
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'ephemeral': 0,
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'swap': 0
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},
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'status': 'active',
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'state': 'running',
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'task_state': '',
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'image': {
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'id': '71860ed5-f66d-43e0-9514-f1d188106284'
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},
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'image_ref': '71860ed5-f66d-43e0-9514-f1d188106284',
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'image_ref_url': None,
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'architecture': 'x86_64',
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'os_type': 'hvm',
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'vcpus': 1,
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'memory_mb': 512,
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'disk_gb': 1,
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'ephemeral_gb': 0,
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'root_gb': 1,
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'disk_name': 'vda'
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},
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'message_id': '078029c7-2ee8-11ef-a915-bd45e2085de3',
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'monotonic_time': 1819980.112406547,
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'message_signature': 'f8d9a411b0cd0cb0d34e83'
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},
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{
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'source': 'openstack',
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'counter_name': 'memory.usage',
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'counter_type': 'gauge',
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'counter_unit': 'MB',
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'counter_volume': 37.98046875,
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'user_id': '6e7d71415cd5401cbe103829c9c5dec2',
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'user_name': None,
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'project_id': 'd965489b7f894cbda89cd2e25bfd85a0',
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'project_name': None,
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'resource_id': 'e536fff6-b20d-4aa5-ac2f-d15ac8b3af63',
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'timestamp': '2024-06-20T09:32:36.515823',
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'resource_metadata': {
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'display_name': 'myserver',
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'name': 'instance-00000002',
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'instance_id': 'e536fff6-b20d-4aa5-ac2f-d15ac8b3af63',
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'instance_type': 'tiny',
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'host': 'e0d297f5df3b62ec73c8d42b',
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'instance_host': 'devstack',
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'flavor': {
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'id': '4af9ac72-5787-4f86-8644-0faa87ce7c83',
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'name': 'tiny',
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'vcpus': 1,
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'ram': 512,
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'disk': 1,
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'ephemeral': 0,
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'swap': 0
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},
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'status': 'active',
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'state': 'running',
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'task_state': '',
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'image': {
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'id': '71860ed5-f66d-43e0-9514-f1d188106284'
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},
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'image_ref': '71860ed5-f66d-43e0-9514-f1d188106284',
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'image_ref_url': None,
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'architecture': 'x86_64',
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'os_type': 'hvm',
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'vcpus': 1,
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'memory_mb': 512,
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'disk_gb': 1,
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'ephemeral_gb': 0,
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'root_gb': 1
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},
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'message_id': '078029bf-2ee8-11ef-a915-bd45e2085de3',
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'monotonic_time': 1819980.131767362,
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'message_signature': 'f8d9a411b0cd0cb0d34e83'
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},
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{
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'source': 'openstack',
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'counter_name': 'image.size',
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'counter_type': 'gauge',
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'counter_unit': 'B',
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'counter_volume': 16344576,
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'user_id': None,
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'user_name': None,
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'project_id': 'd965489b7f894cbda89cd2e25bfd85a0',
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'project_name': None,
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'resource_id': 'f9276c96-8a12-432b-96a1-559d70715f97',
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'timestamp': '2024-06-20T09:40:17.118871',
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'resource_metadata': {
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'status': 'active',
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'visibility': 'public',
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'name': 'cirros2',
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'container_format': 'bare',
|
||||||
|
'created_at': '2024-05-30T11:38:52Z',
|
||||||
|
'disk_format': 'qcow2',
|
||||||
|
'updated_at': '2024-05-30T11:38:52Z',
|
||||||
|
'min_disk': 0,
|
||||||
|
'protected': False,
|
||||||
|
'checksum': '7734eb3945297adc90ddc6cebe8bb082',
|
||||||
|
'min_ram': 0,
|
||||||
|
'tags': [],
|
||||||
|
'virtual_size': 117440512
|
||||||
|
},
|
||||||
|
'message_id': '19f8f78a-2ee9-11ef-a95f-bd45e2085de3',
|
||||||
|
'monotonic_time': None,
|
||||||
|
'message_signature': 'f8d9a411b0cd0cb0d34e83'
|
||||||
|
}
|
||||||
|
]
|
||||||
|
|
||||||
|
@mock.patch('ceilometer.polling.prom_exporter.export')
|
||||||
|
def test_prom_disabled(self, export):
|
||||||
|
CONF = service.prepare_service([], [])
|
||||||
|
manager.AgentManager(0, CONF)
|
||||||
|
|
||||||
|
export.assert_not_called()
|
||||||
|
|
||||||
|
@mock.patch('ceilometer.polling.prom_exporter.export')
|
||||||
|
def test_export_called(self, export):
|
||||||
|
CONF = service.prepare_service([], [])
|
||||||
|
CONF.polling.enable_prometheus_exporter = True
|
||||||
|
CONF.polling.prometheus_listen_addresses = ['127.0.0.1:9101',
|
||||||
|
'127.0.0.1:9102']
|
||||||
|
manager.AgentManager(0, CONF)
|
||||||
|
|
||||||
|
export.assert_has_calls([
|
||||||
|
call('127.0.0.1', '9101'),
|
||||||
|
call('127.0.0.1', '9102')
|
||||||
|
])
|
||||||
|
|
||||||
|
def test_collect_metrics(self):
|
||||||
|
prom_exporter.collect_metrics(self.test_data)
|
||||||
|
sample_dict_1 = {'counter': 'image.size',
|
||||||
|
'image': 'f9276c96-8a12-432b-96a1-559d70715f97',
|
||||||
|
'project': 'd965489b7f894cbda89cd2e25bfd85a0',
|
||||||
|
'publisher': 'ceilometer',
|
||||||
|
'resource': 'f9276c96-8a12-432b-96a1-559d70715f97',
|
||||||
|
'resource_name': 'cirros2',
|
||||||
|
'type': 'size',
|
||||||
|
'unit': 'B'}
|
||||||
|
sample_dict_2 = {'counter': 'memory.usage',
|
||||||
|
'memory': 'e536fff6-b20d-4aa5-ac2f-d15ac8b3af63',
|
||||||
|
'project': 'd965489b7f894cbda89cd2e25bfd85a0',
|
||||||
|
'publisher': 'ceilometer',
|
||||||
|
'resource': 'e536fff6-b20d-4aa5-ac2f-d15ac8b3af63',
|
||||||
|
'resource_name': 'myserver:instance-00000002',
|
||||||
|
'type': 'usage',
|
||||||
|
'unit': 'MB',
|
||||||
|
'user': '6e7d71415cd5401cbe103829c9c5dec2',
|
||||||
|
'vm_instance': 'e0d297f5df3b62ec73c8d42b'}
|
||||||
|
self.assertEqual(16344576,
|
||||||
|
prom_exporter.CEILOMETER_REGISTRY.
|
||||||
|
get_sample_value('ceilometer_image_size',
|
||||||
|
sample_dict_1))
|
||||||
|
self.assertEqual(37.98046875,
|
||||||
|
prom_exporter.CEILOMETER_REGISTRY.
|
||||||
|
get_sample_value('ceilometer_memory_usage',
|
||||||
|
sample_dict_2))
|
||||||
|
|
||||||
|
def test_gen_labels(self):
|
||||||
|
slabels1 = dict(keys=[], values=[])
|
||||||
|
slabels1['keys'] = ['disk', 'publisher', 'type', 'counter',
|
||||||
|
'project', 'user', 'unit', 'resource',
|
||||||
|
'vm_instance', 'resource_name',
|
||||||
|
'resource_name']
|
||||||
|
slabels1['values'] = ['read', 'ceilometer', 'device',
|
||||||
|
'disk.device.read.latency',
|
||||||
|
'd965489b7f894cbda89cd2e25bfd85a0',
|
||||||
|
'6e7d71415cd5401cbe103829c9c5dec2',
|
||||||
|
'ns',
|
||||||
|
'e536fff6-b20d-4aa5-ac2f-d15ac8b3af63-vda',
|
||||||
|
'e0d297f5df3b62ec73c8d42b', 'myserver',
|
||||||
|
'myserver:instance-00000002']
|
||||||
|
label1 = prom_exporter._gen_labels(self.test_data[0])
|
||||||
|
self.assertDictEqual(label1, slabels1)
|
||||||
|
|
||||||
|
slabels2 = dict(keys=[], values=[])
|
||||||
|
slabels2['keys'] = ['image', 'publisher', 'type', 'counter',
|
||||||
|
'project', 'unit', 'resource',
|
||||||
|
'resource_name']
|
||||||
|
slabels2['values'] = ['f9276c96-8a12-432b-96a1-559d70715f97',
|
||||||
|
'ceilometer', 'size', 'image.size',
|
||||||
|
'd965489b7f894cbda89cd2e25bfd85a0', 'B',
|
||||||
|
'f9276c96-8a12-432b-96a1-559d70715f97',
|
||||||
|
'cirros2']
|
||||||
|
label2 = prom_exporter._gen_labels(self.test_data[2])
|
||||||
|
self.assertDictEqual(label2, slabels2)
|
||||||
@ -39,3 +39,4 @@ tooz[zake]>=1.47.0 # Apache-2.0
|
|||||||
oslo.cache>=1.26.0 # Apache-2.0
|
oslo.cache>=1.26.0 # Apache-2.0
|
||||||
gnocchiclient>=7.0.0 # Apache-2.0
|
gnocchiclient>=7.0.0 # Apache-2.0
|
||||||
python-zaqarclient>=1.3.0 # Apache-2.0
|
python-zaqarclient>=1.3.0 # Apache-2.0
|
||||||
|
prometheus_client>=0.20.0 # Apache-2.0
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user