55cd446b3c
Adds support for parsing messages from the ironic code base which include metrics related to method call counts/timers, and ultimately items like "how many nodes were in this state". This is in order to provide operators with greater insight into Depends-On: https://review.opendev.org/c/openstack/ironic/+/865447 Change-Id: Ie4f3b2d3c7c7cbab1a0e03d8c7f0961d38a7d2c0
98 lines
3.5 KiB
Python
98 lines
3.5 KiB
Python
# 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 logging
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import os
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from oslo_config import cfg
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from oslo_messaging.notify import notifier
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from prometheus_client import CollectorRegistry
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from prometheus_client import write_to_textfile
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from ironic_prometheus_exporter.parsers import header
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from ironic_prometheus_exporter.parsers import ipmi
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from ironic_prometheus_exporter.parsers import ironic as ironic_parser
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from ironic_prometheus_exporter.parsers import redfish
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LOG = logging.getLogger(__name__)
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prometheus_opts = [
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cfg.StrOpt('location', required=True,
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help='Directory where the files will be written.')
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]
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def register_opts(conf):
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conf.register_opts(prometheus_opts, group='oslo_messaging_notifications')
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class PrometheusFileDriver(notifier.Driver):
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"""Publish notifications into a File to be used by Prometheus"""
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def __init__(self, conf, topics, transport):
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self.location = conf.oslo_messaging_notifications.location
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if not os.path.exists(self.location):
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os.makedirs(self.location)
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super(PrometheusFileDriver, self).__init__(conf, topics, transport)
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def notify(self, ctxt, message, priority, retry):
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try:
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registry = CollectorRegistry()
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event_type = message['event_type']
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payload = message['payload']
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if event_type == 'ironic.metrics':
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# We know this message payload is from a conductor itself
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# and not for node drivers.
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header.timestamp_conductor_registry(payload, registry)
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ironic_parser.category_registry(payload, registry)
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else:
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header.timestamp_registry(payload, registry)
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if event_type == 'hardware.ipmi.metrics':
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ipmi.category_registry(payload, registry)
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elif event_type == 'hardware.redfish.metrics':
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redfish.category_registry(payload, registry)
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# Order of preference is for a node Name, UUID, or
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# payload hostname field to be used (i.e. for conductor
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# message payloads).
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field = (
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payload.get('node_name') or
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payload.get('node_uuid') or
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payload.get('hostname')
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)
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statFile = os.path.join(
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self.location, field + '-' + event_type)
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# Writes to file for server pickup
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write_to_textfile(statFile, registry)
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except Exception as e:
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LOG.error(e)
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raise
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class SimpleFileDriver(notifier.Driver):
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def __init__(self, conf, topics, transport):
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self.location = conf.oslo_messaging_notifications.location
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if not os.path.exists(self.location):
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os.makedirs(os.path.dirname(self.location))
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super(SimpleFileDriver, self).__init__(conf, topics, transport)
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def notify(self, ctx, message, priority, retry):
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with open(os.path.join(self.location, 'simplefile'), 'w') as file:
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file.write(message)
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