74d239d4eb
This migrates ironic-lib code and usages to code in ironic.common. Relevant unit tests were migrated as well. Also removes support for ironic-lib from CI and devstack. Change-Id: Ic96a09735f04ff98c6fec23d782566da3061c409
77 lines
2.7 KiB
Python
77 lines
2.7 KiB
Python
# Copyright 2016 Rackspace Hosting
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# All Rights Reserved.
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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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from oslo_config import cfg
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from ironic.common import exception
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from ironic.common.i18n import _
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from ironic.common import metrics
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from ironic.common import metrics_collector
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from ironic.common import metrics_statsd
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CONF = cfg.CONF
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def get_metrics_logger(prefix='', backend=None, host=None, delimiter='.'):
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"""Return a metric logger with the specified prefix.
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The format of the prefix is:
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[global_prefix<delim>][host_name<delim>]prefix
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where <delim> is the delimiter (default is '.')
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:param prefix: Prefix for this metric logger.
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Value should be a string or None.
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:param backend: Backend to use for the metrics system.
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Possible values are 'noop' and 'statsd'.
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:param host: Name of this node.
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:param delimiter: Delimiter to use for the metrics name.
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:return: The new MetricLogger.
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"""
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if not isinstance(prefix, str):
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msg = (_("This metric prefix (%s) is of unsupported type. "
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"Value should be a string or None")
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% str(prefix))
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raise exception.InvalidMetricConfig(msg)
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if CONF.metrics.prepend_host and host:
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if CONF.metrics.prepend_host_reverse:
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host = '.'.join(reversed(host.split('.')))
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if prefix:
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prefix = delimiter.join([host, prefix])
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else:
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prefix = host
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if CONF.metrics.global_prefix:
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if prefix:
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prefix = delimiter.join([CONF.metrics.global_prefix, prefix])
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else:
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prefix = CONF.metrics.global_prefix
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backend = backend or CONF.metrics.backend
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if backend == 'statsd':
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return metrics_statsd.StatsdMetricLogger(prefix, delimiter=delimiter)
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elif backend == 'noop':
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return metrics.NoopMetricLogger(prefix, delimiter=delimiter)
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elif backend == 'collector':
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return metrics_collector.DictCollectionMetricLogger(
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prefix, delimiter=delimiter)
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else:
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msg = (_("The backend is set to an unsupported type: "
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"%s. Value should be 'noop' or 'statsd'.")
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% backend)
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raise exception.InvalidMetricConfig(msg)
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