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app: expose /api/v1/status/config endpoint in the same way as Prometheus does

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This endpoint is needed for third-party tools.

See https://prometheus.io/docs/prometheus/latest/querying/api/#config
This commit is contained in:
Aliaksandr Valialkin 2022-05-25 09:57:11 +03:00
parent 514843be77
commit df9ffa6854
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2 changed files with 21 additions and 1 deletions
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20
app/vmagent/main.go
View file

@ -23,6 +23,7 @@ import (
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/vmimport"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/buildinfo"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/envflag"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
@ -284,6 +285,22 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
promscrape.WriteConfigData(w)
return true
case "/api/v1/status/config":
// See https://prometheus.io/docs/prometheus/latest/querying/api/#config
if *configAuthKey != "" && r.FormValue("authKey") != *configAuthKey {
err := &httpserver.ErrorWithStatusCode{
Err: fmt.Errorf("The provided authKey doesn't match -configAuthKey"),
StatusCode: http.StatusUnauthorized,
}
httpserver.Errorf(w, r, "%s", err)
return true
}
promscrapeStatusConfigRequests.Inc()
w.Header().Set("Content-Type", "application/json")
var bb bytesutil.ByteBuffer
promscrape.WriteConfigData(&bb)
fmt.Fprintf(w, `{"status":"success","data":{"yaml":%q}}`, bb.B)
return true
case "/api/v1/targets":
promscrapeAPIV1TargetsRequests.Inc()
w.Header().Set("Content-Type", "application/json")
@ -455,7 +472,8 @@ var (
promscrapeTargetResponseRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/target_response"}`)
promscrapeTargetResponseErrors = metrics.NewCounter(`vmagent_http_request_errors_total{path="/target_response"}`)
promscrapeConfigRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/config"}`)
promscrapeConfigRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/config"}`)
promscrapeStatusConfigRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/status/config"}`)
promscrapeConfigReloadRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/-/reload"}`)
)

2
docs/CHANGELOG.md
View file

@ -15,6 +15,8 @@ The following tip changes can be tested by building VictoriaMetrics components f
## tip
* FEATURE: [vmagent](https://docs.victoriametrics.com/vmagent.html): expose `/api/v1/status/config` endpoint in the same way as Prometheus does. See [these docs](https://prometheus.io/docs/prometheus/latest/querying/api/#config).
## [v1.77.2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.77.2)
Released at 21-05-2022