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promtool: add command for querying series (#4308)

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Signed-off-by: Shubheksha Jalan <jshubheksha@gmail.com>
This commit is contained in:
Shubheksha 2018-07-18 04:15:58 -04:00 committed by Julius Volz
parent a215aed9b6
commit 125da3b812
1 changed files with 65 additions and 0 deletions
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65
cmd/promtool/main.go
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@ -74,6 +74,12 @@ func main() {
queryRangeBegin := queryRangeCmd.Flag("start", "Query range start time (RFC3339 or Unix timestamp).").String()
queryRangeEnd := queryRangeCmd.Flag("end", "Query range end time (RFC3339 or Unix timestamp).").String()
querySeriesCmd := queryCmd.Command("series", "Run series query.")
querySeriesServer := querySeriesCmd.Arg("server", "Prometheus server to query.").Required().URL()
querySeriesMatch := querySeriesCmd.Flag("match", "Series selector. Can be specified multiple times.").Required().Strings()
querySeriesBegin := querySeriesCmd.Flag("start", "Start time (RFC3339 or Unix timestamp).").String()
querySeriesEnd := querySeriesCmd.Flag("end", "End time (RFC3339 or Unix timestamp).").String()
debugCmd := app.Command("debug", "Fetch debug information.")
debugPprofCmd := debugCmd.Command("pprof", "Fetch profiling debug information.")
debugPprofServer := debugPprofCmd.Arg("server", "Prometheus server to get pprof files from.").Required().String()
@ -101,6 +107,9 @@ func main() {
case queryRangeCmd.FullCommand():
os.Exit(QueryRange(*queryRangeServer, *queryRangeExpr, *queryRangeBegin, *queryRangeEnd))
case querySeriesCmd.FullCommand():
os.Exit(QuerySeries(*querySeriesServer, *querySeriesMatch, *querySeriesBegin, *querySeriesEnd))
case debugPprofCmd.FullCommand():
os.Exit(debugPprof(*debugPprofServer))
@ -453,6 +462,62 @@ func QueryRange(url string, query string, start string, end string) int {
return 0
}
// QuerySeries queries for a series against a Prometheus server.
func QuerySeries(url *url.URL, matchers []string, start string, end 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
}
// TODO: clean up timestamps
var (
minTime = time.Now().Add(-9999 * time.Hour)
maxTime = time.Now().Add(9999 * time.Hour)
)
var stime, etime time.Time
if start == "" {
stime = minTime
} else {
stime, err = parseTime(start)
if err != nil {
fmt.Fprintln(os.Stderr, "error parsing start time:", err)
}
}
if end == "" {
etime = maxTime
} else {
etime, err = parseTime(end)
if err != nil {
fmt.Fprintln(os.Stderr, "error parsing end time:", err)
}
}
// Run query against client.
api := v1.NewAPI(c)
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
val, err := api.Series(ctx, matchers, stime, etime)
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)