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add query labels command to promtool (#4346)

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Signed-off-by: Daisy T <daisyts@gmx.com>
This commit is contained in:
Daisy T 2018-07-18 16:27:28 +02:00 committed by Julius Volz
parent afdb66dfac
commit a3376e8f36
1 changed files with 37 additions and 0 deletions
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37
cmd/promtool/main.go
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@ -89,6 +89,10 @@ func main() {
debugAllCmd := debugCmd.Command("all", "Fetch all debug information.")
debugAllServer := debugAllCmd.Arg("server", "Prometheus server to get all debug information from.").Required().String()
queryLabelsCmd := queryCmd.Command("labels", "Run labels query.")
queryLabelsServer := queryLabelsCmd.Arg("server", "Prometheus server to query.").Required().URL()
queryLabelsName := queryLabelsCmd.Arg("name", "Label name to provide label values for.").Required().String()
switch kingpin.MustParse(app.Parse(os.Args[1:])) {
case checkConfigCmd.FullCommand():
os.Exit(CheckConfig(*configFiles...))
@ -119,6 +123,9 @@ func main() {
case debugAllCmd.FullCommand():
os.Exit(debugAll(*debugAllServer))
case queryLabelsCmd.FullCommand():
os.Exit(QueryLabels(*queryLabelsServer, *queryLabelsName))
}
}
@ -519,6 +526,36 @@ func QuerySeries(url *url.URL, matchers []string, start string, end string) int
return 0
}
// QueryLabels queries for label values against a Prometheus server.
func QueryLabels(url *url.URL, name string) int {
config := api.Config{
Address: url.String(),
}
// Create new client.
c, err := api.NewClient(config)
if err != nil {
fmt.Fprintln(os.Stderr, "error creating API client:", err)
return 1
}
// Run query against client.
api := v1.NewAPI(c)
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
val, err := api.LabelValues(ctx, name)
cancel()
if err != nil {
fmt.Fprintln(os.Stderr, "query error:", err)
return 1
}
for _, v := range val {
fmt.Println(v)
}
return 0
}
func parseTime(s string) (time.Time, error) {
if t, err := strconv.ParseFloat(s, 64); err == nil {
s, ns := math.Modf(t)