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If the metrics exported by a process already contain any of a target's base labels (such as "job" or "instance", but also any manually assigned target-group label), don't overwrite that label, but instead add a new label consisting of the original label name prepended with "exporter_". This is to accomodate intermediate exporter jobs, which might indicate e.g. the jobs and instances for which they are exporting data.
53 lines
1.7 KiB
Go
53 lines
1.7 KiB
Go
// Copyright 2013 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain 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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package model
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const (
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// The label name indicating the metric name of a timeseries.
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MetricNameLabel = LabelName("name")
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// The label name indicating the job from which a timeseries was scraped.
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JobLabel = LabelName("job")
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// The label name indicating the instance from which a timeseries was scraped.
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InstanceLabel = LabelName("instance")
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// The label name prefix to prepend if a synthetic label is already present
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// in the exported metrics.
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ExporterLabelPrefix = LabelName("exporter_")
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// The metric name for the synthetic health variable.
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ScrapeHealthMetricName = LabelValue("up")
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// The metric name for synthetic alert timeseries.
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AlertMetricName = LabelValue("ALERTS")
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// The label name indicating the name of an alert.
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AlertNameLabel = LabelName("alertname")
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// The label name indicating the state of an alert.
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AlertStateLabel = LabelName("alertstate")
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)
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// A LabelName is a key for a LabelSet or Metric. It has a value associated
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// therewith.
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type LabelName string
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type LabelNames []LabelName
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func (l LabelNames) Len() int {
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return len(l)
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}
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func (l LabelNames) Less(i, j int) bool {
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return l[i] < l[j]
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}
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func (l LabelNames) Swap(i, j int) {
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l[i], l[j] = l[j], l[i]
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}
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