mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-11-09 23:24:09 -08:00
Make version informations consistent between prometheus components
This also fixes #231 by adding the '-version' flag
This commit is contained in:
Steve Durrheimer
parent
d890b63fb5
commit
60cbc9efc0
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@ -3,10 +3,11 @@ repository:
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path: github.com/prometheus/node_exporter
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build:
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ldflags: |
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-X main.Version={{.Version}}
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-X {{repoPath}}/collector.Version={{.Version}}
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-X {{repoPath}}/collector.Revision={{.Revision}}
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-X {{repoPath}}/collector.Branch={{.Branch}}
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-X {{repoPath}}/vendor/github.com/prometheus/common/version.Version={{.Version}}
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-X {{repoPath}}/vendor/github.com/prometheus/common/version.Revision={{.Revision}}
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-X {{repoPath}}/vendor/github.com/prometheus/common/version.Branch={{.Branch}}
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-X {{repoPath}}/vendor/github.com/prometheus/common/version.BuildUser={{user}}@{{host}}
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-X {{repoPath}}/vendor/github.com/prometheus/common/version.BuildDate={{date "20060102-15:04:05"}}
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tarball:
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files:
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- LICENSE
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@ -34,7 +34,6 @@ stat | Exposes various statistics from `/proc/stat`. This includes CPU usage, bo
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textfile | Exposes statistics read from local disk. The `--collector.textfile.directory` flag must be set. | _any_
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time | Exposes the current system time. | _any_
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vmstat | Exposes statistics from `/proc/vmstat`. | Linux
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version | Exposes node\_exporter version. | _any_
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### Disabled by default
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@ -365,6 +365,9 @@ node_disk_writes_merged{device="vda"} 2.0711856e+07
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# HELP node_entropy_available_bits Bits of available entropy.
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# TYPE node_entropy_available_bits gauge
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node_entropy_available_bits 1337
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# HELP node_exporter_build_info A metric with a constant '1' value labeled by version, revision, branch, and goversion from which node_exporter was built.
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# TYPE node_exporter_build_info gauge
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node_exporter_build_info{branch="master",goversion="go1.5.4",revision="252feb6",version="0.12.0rc3"} 1
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# HELP node_exporter_scrape_duration_seconds node_exporter: Duration of a scrape job.
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# TYPE node_exporter_scrape_duration_seconds summary
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node_exporter_scrape_duration_seconds{collector="bonding",result="success",quantile="0.5"} 7.481600000000001e-05
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@ -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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@ -18,6 +18,7 @@ import (
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"fmt"
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"net/http"
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_ "net/http/pprof"
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"os"
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"sort"
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"strings"
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"sync"
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@ -25,17 +26,15 @@ import (
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/common/log"
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"github.com/prometheus/common/version"
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"github.com/prometheus/node_exporter/collector"
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)
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const (
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defaultCollectors = "conntrack,cpu,diskstats,entropy,filefd,filesystem,loadavg,mdadm,meminfo,netdev,netstat,sockstat,stat,textfile,time,uname,version,vmstat"
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defaultCollectors = "conntrack,cpu,diskstats,entropy,filefd,filesystem,loadavg,mdadm,meminfo,netdev,netstat,sockstat,stat,textfile,time,uname,vmstat"
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)
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var (
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// Version of node_exporter. Set at build time.
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Version = "0.0.0.dev"
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scrapeDurations = prometheus.NewSummaryVec(
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prometheus.SummaryOpts{
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Namespace: collector.Namespace,
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@ -114,8 +113,13 @@ func loadCollectors(list string) (map[string]collector.Collector, error) {
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return collectors, nil
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}
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func init() {
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prometheus.MustRegister(version.NewCollector("node_exporter"))
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}
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func main() {
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var (
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showVersion = flag.Bool("version", false, "Print version information.")
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listenAddress = flag.String("web.listen-address", ":9100", "Address on which to expose metrics and web interface.")
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metricsPath = flag.String("web.telemetry-path", "/metrics", "Path under which to expose metrics.")
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enabledCollectors = flag.String("collectors.enabled", filterAvailableCollectors(defaultCollectors), "Comma-separated list of collectors to use.")
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@ -123,6 +127,14 @@ func main() {
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)
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flag.Parse()
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if *showVersion {
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fmt.Fprintln(os.Stdout, version.Print("node_exporter"))
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os.Exit(0)
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}
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log.Infoln("Starting node_exporter", version.Info())
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log.Infoln("Build context", version.BuildContext())
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if *printCollectors {
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collectorNames := make(sort.StringSlice, 0, len(collector.Factories))
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for n := range collector.Factories {
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@ -161,7 +173,7 @@ func main() {
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</html>`))
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})
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log.Infof("Starting node_exporter v%s at %s", Version, *listenAddress)
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log.Infoln("Listening on", *listenAddress)
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err = http.ListenAndServe(*listenAddress, nil)
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if err != nil {
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log.Fatal(err)
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89
vendor/github.com/prometheus/common/version/info.go
generated
vendored
Normal file
89
vendor/github.com/prometheus/common/version/info.go
generated
vendored
Normal file
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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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9
vendor/vendor.json
vendored
9
vendor/vendor.json
vendored
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@ -72,6 +72,12 @@
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"revision": "0a3005bb37bc411040083a55372e77c405f6464c",
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"revisionTime": "2016-01-04T14:47:38+01:00"
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},
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{
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"checksumSHA1": "91KYK0SpvkaMJJA2+BcxbVnyRO0=",
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"path": "github.com/prometheus/common/version",
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"revision": "dd586c1c5abb0be59e60f942c22af711a2008cb4",
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"revisionTime": "2016-05-03T22:05:32Z"
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},
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{
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"path": "github.com/prometheus/procfs",
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"revision": "406e5b7bfd8201a36e2bb5f7bdae0b03380c2ce8",
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@ -87,5 +93,6 @@
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"revision": "833a04a10549a95dc34458c195cbad61bbb6cb4d",
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"revisionTime": "2015-12-10T17:34:15-08:00"
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}
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]
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],
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"rootPath": "github.com/prometheus/node_exporter"
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}
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