Steve Durrheimer
9 years ago
7 changed files with 122 additions and 62 deletions
@ -1,51 +0,0 @@
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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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@ -0,0 +1,89 @@
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// Copyright 2016 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 version |
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import ( |
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"bytes" |
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"fmt" |
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"runtime" |
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"strings" |
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"text/template" |
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"github.com/prometheus/client_golang/prometheus" |
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) |
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// Build information. Populated at build-time.
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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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BuildUser string |
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BuildDate string |
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GoVersion = runtime.Version() |
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) |
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// NewCollector returns a collector which exports metrics about current version information.
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func NewCollector(program string) *prometheus.GaugeVec { |
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buildInfo := prometheus.NewGaugeVec( |
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prometheus.GaugeOpts{ |
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Namespace: program, |
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Name: "build_info", |
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Help: fmt.Sprintf( |
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"A metric with a constant '1' value labeled by version, revision, branch, and goversion from which %s was built.", |
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program, |
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), |
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}, |
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[]string{"version", "revision", "branch", "goversion"}, |
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) |
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buildInfo.WithLabelValues(Version, Revision, Branch, GoVersion).Set(1) |
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return buildInfo |
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} |
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// versionInfoTmpl contains the template used by Info.
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var versionInfoTmpl = ` |
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{{.program}}, version {{.version}} (branch: {{.branch}}, revision: {{.revision}}) |
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build user: {{.buildUser}} |
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build date: {{.buildDate}} |
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go version: {{.goVersion}} |
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` |
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// Print returns version information.
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func Print(program string) string { |
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m := map[string]string{ |
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"program": program, |
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"version": Version, |
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"revision": Revision, |
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"branch": Branch, |
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"buildUser": BuildUser, |
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"buildDate": BuildDate, |
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"goVersion": GoVersion, |
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} |
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t := template.Must(template.New("version").Parse(versionInfoTmpl)) |
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var buf bytes.Buffer |
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if err := t.ExecuteTemplate(&buf, "version", m); err != nil { |
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panic(err) |
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} |
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return strings.TrimSpace(buf.String()) |
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} |
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// Info returns version, branch and revision information.
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func Info() string { |
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return fmt.Sprintf("(version=%s, branch=%s, revision=%s)", Version, Branch, Revision) |
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} |
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// BuildContext returns goVersion, buildUser and buildDate information.
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func BuildContext() string { |
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return fmt.Sprintf("(go=%s, user=%s, date=%s)", GoVersion, BuildUser, BuildDate) |
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} |
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