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52 lines
1.4 KiB
52 lines
1.4 KiB
9 years ago
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// Copyright 2015 The Prometheus Authors
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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 collector
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import (
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"github.com/prometheus/client_golang/prometheus"
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)
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var (
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Version string
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Revision string
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Branch string
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)
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type versionCollector struct {
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metric *prometheus.GaugeVec
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}
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func init() {
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Factories["version"] = NewVersionCollector
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}
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func NewVersionCollector() (Collector, error) {
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metric := prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "node_exporter_build_info",
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Help: "A metric with a constant '1' value labeled by version, revision, and branch from which the node_exporter was built.",
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},
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[]string{"version", "revision", "branch"},
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)
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metric.WithLabelValues(Version, Revision, Branch).Set(1)
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return &versionCollector{
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metric: metric,
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}, nil
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}
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func (c *versionCollector) Update(ch chan<- prometheus.Metric) (err error) {
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c.metric.Collect(ch)
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return err
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}
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