VictoriaMetrics/app/vmagent/main.go
Aliaksandr Valialkin 4f3764b140
lib/pushmetrics: wait until the background goroutines, which push metrics, are stopped at pushmetrics.Stop()
Previously the was a race condition when the background goroutine still could try collecting metrics
from already stopped resources after returning from pushmetrics.Stop().
Now the pushmetrics.Stop() waits until the background goroutine is stopped before returning.

This is a follow-up for https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5549
and the commit fe2d9f6646 .

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5548
2024-01-16 23:44:31 +02:00

591 lines
24 KiB
Go

package main
import (
"embed"
"flag"
"fmt"
"io"
"net/http"
"os"
"strings"
"sync/atomic"
"time"
"github.com/VictoriaMetrics/metrics"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/csvimport"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/datadog"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/graphite"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/influx"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/native"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/opentsdb"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/opentsdbhttp"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/prometheusimport"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/promremotewrite"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
"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"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/influxutils"
graphiteserver "github.com/VictoriaMetrics/VictoriaMetrics/lib/ingestserver/graphite"
influxserver "github.com/VictoriaMetrics/VictoriaMetrics/lib/ingestserver/influx"
opentsdbserver "github.com/VictoriaMetrics/VictoriaMetrics/lib/ingestserver/opentsdb"
opentsdbhttpserver "github.com/VictoriaMetrics/VictoriaMetrics/lib/ingestserver/opentsdbhttp"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/procutil"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/common"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/pushmetrics"
)
var (
httpListenAddr = flag.String("httpListenAddr", ":8429", "TCP address to listen for http connections. "+
"Set this flag to empty value in order to disable listening on any port. This mode may be useful for running multiple vmagent instances on the same server. "+
"Note that /targets and /metrics pages aren't available if -httpListenAddr=''. See also -httpListenAddr.useProxyProtocol")
useProxyProtocol = flag.Bool("httpListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -httpListenAddr . "+
"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
influxListenAddr = flag.String("influxListenAddr", "", "TCP and UDP address to listen for InfluxDB line protocol data. Usually :8089 must be set. Doesn't work if empty. "+
"This flag isn't needed when ingesting data over HTTP - just send it to http://<vmagent>:8429/write . "+
"See also -influxListenAddr.useProxyProtocol")
influxUseProxyProtocol = flag.Bool("influxListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -influxListenAddr . "+
"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt")
graphiteListenAddr = flag.String("graphiteListenAddr", "", "TCP and UDP address to listen for Graphite plaintext data. Usually :2003 must be set. Doesn't work if empty. "+
"See also -graphiteListenAddr.useProxyProtocol")
graphiteUseProxyProtocol = flag.Bool("graphiteListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -graphiteListenAddr . "+
"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt")
opentsdbListenAddr = flag.String("opentsdbListenAddr", "", "TCP and UDP address to listen for OpentTSDB metrics. "+
"Telnet put messages and HTTP /api/put messages are simultaneously served on TCP port. "+
"Usually :4242 must be set. Doesn't work if empty. See also -opentsdbListenAddr.useProxyProtocol")
opentsdbUseProxyProtocol = flag.Bool("opentsdbListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -opentsdbListenAddr . "+
"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt")
opentsdbHTTPListenAddr = flag.String("opentsdbHTTPListenAddr", "", "TCP address to listen for OpentTSDB HTTP put requests. Usually :4242 must be set. Doesn't work if empty. "+
"See also -opentsdbHTTPListenAddr.useProxyProtocol")
opentsdbHTTPUseProxyProtocol = flag.Bool("opentsdbHTTPListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted "+
"at -opentsdbHTTPListenAddr . See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt")
configAuthKey = flag.String("configAuthKey", "", "Authorization key for accessing /config page. It must be passed via authKey query arg")
dryRun = flag.Bool("dryRun", false, "Whether to check only config files without running vmagent. The following files are checked: "+
"-promscrape.config, -remoteWrite.relabelConfig, -remoteWrite.urlRelabelConfig . "+
"Unknown config entries aren't allowed in -promscrape.config by default. This can be changed by passing -promscrape.config.strictParse=false command-line flag")
)
var (
influxServer *influxserver.Server
graphiteServer *graphiteserver.Server
opentsdbServer *opentsdbserver.Server
opentsdbhttpServer *opentsdbhttpserver.Server
)
var (
//go:embed static
staticFiles embed.FS
staticServer = http.FileServer(http.FS(staticFiles))
)
func main() {
// Write flags and help message to stdout, since it is easier to grep or pipe.
flag.CommandLine.SetOutput(os.Stdout)
flag.Usage = usage
envflag.Parse()
remotewrite.InitSecretFlags()
buildinfo.Init()
logger.Init()
if promscrape.IsDryRun() {
if err := promscrape.CheckConfig(); err != nil {
logger.Fatalf("error when checking -promscrape.config: %s", err)
}
logger.Infof("-promscrape.config is ok; exitting with 0 status code")
return
}
if *dryRun {
if err := remotewrite.CheckRelabelConfigs(); err != nil {
logger.Fatalf("error when checking relabel configs: %s", err)
}
if err := promscrape.CheckConfig(); err != nil {
logger.Fatalf("error when checking -promscrape.config: %s", err)
}
logger.Infof("all the configs are ok; exitting with 0 status code")
return
}
logger.Infof("starting vmagent at %q...", *httpListenAddr)
startTime := time.Now()
remotewrite.Init()
common.StartUnmarshalWorkers()
if len(*influxListenAddr) > 0 {
influxServer = influxserver.MustStart(*influxListenAddr, *influxUseProxyProtocol, func(r io.Reader) error {
return influx.InsertHandlerForReader(r, false)
})
}
if len(*graphiteListenAddr) > 0 {
graphiteServer = graphiteserver.MustStart(*graphiteListenAddr, *graphiteUseProxyProtocol, graphite.InsertHandler)
}
if len(*opentsdbListenAddr) > 0 {
httpInsertHandler := getOpenTSDBHTTPInsertHandler()
opentsdbServer = opentsdbserver.MustStart(*opentsdbListenAddr, *opentsdbUseProxyProtocol, opentsdb.InsertHandler, httpInsertHandler)
}
if len(*opentsdbHTTPListenAddr) > 0 {
httpInsertHandler := getOpenTSDBHTTPInsertHandler()
opentsdbhttpServer = opentsdbhttpserver.MustStart(*opentsdbHTTPListenAddr, *opentsdbHTTPUseProxyProtocol, httpInsertHandler)
}
promscrape.Init(remotewrite.Push)
if len(*httpListenAddr) > 0 {
go httpserver.Serve(*httpListenAddr, *useProxyProtocol, requestHandler)
}
logger.Infof("started vmagent in %.3f seconds", time.Since(startTime).Seconds())
pushmetrics.Init()
sig := procutil.WaitForSigterm()
logger.Infof("received signal %s", sig)
pushmetrics.Stop()
startTime = time.Now()
if len(*httpListenAddr) > 0 {
logger.Infof("gracefully shutting down webservice at %q", *httpListenAddr)
if err := httpserver.Stop(*httpListenAddr); err != nil {
logger.Fatalf("cannot stop the webservice: %s", err)
}
logger.Infof("successfully shut down the webservice in %.3f seconds", time.Since(startTime).Seconds())
}
promscrape.Stop()
if len(*influxListenAddr) > 0 {
influxServer.MustStop()
}
if len(*graphiteListenAddr) > 0 {
graphiteServer.MustStop()
}
if len(*opentsdbListenAddr) > 0 {
opentsdbServer.MustStop()
}
if len(*opentsdbHTTPListenAddr) > 0 {
opentsdbhttpServer.MustStop()
}
common.StopUnmarshalWorkers()
remotewrite.Stop()
logger.Infof("successfully stopped vmagent in %.3f seconds", time.Since(startTime).Seconds())
}
func getOpenTSDBHTTPInsertHandler() func(req *http.Request) error {
if !remotewrite.MultitenancyEnabled() {
return func(req *http.Request) error {
path := strings.Replace(req.URL.Path, "//", "/", -1)
if path != "/api/put" {
return fmt.Errorf("unsupported path requested: %q; expecting '/api/put'", path)
}
return opentsdbhttp.InsertHandler(nil, req)
}
}
return func(req *http.Request) error {
path := strings.Replace(req.URL.Path, "//", "/", -1)
at, err := getAuthTokenFromPath(path)
if err != nil {
return fmt.Errorf("cannot obtain auth token from path %q: %w", path, err)
}
return opentsdbhttp.InsertHandler(at, req)
}
}
func getAuthTokenFromPath(path string) (*auth.Token, error) {
p, err := httpserver.ParsePath(path)
if err != nil {
return nil, fmt.Errorf("cannot parse multitenant path: %w", err)
}
if p.Prefix != "insert" {
return nil, fmt.Errorf(`unsupported multitenant prefix: %q; expected "insert"`, p.Prefix)
}
if p.Suffix != "opentsdb/api/put" {
return nil, fmt.Errorf("unsupported path requested: %q; expecting 'opentsdb/api/put'", p.Suffix)
}
return auth.NewTokenPossibleMultitenant(p.AuthToken)
}
func requestHandler(w http.ResponseWriter, r *http.Request) bool {
if r.URL.Path == "/" {
if r.Method != "GET" {
return false
}
w.Header().Add("Content-Type", "text/html; charset=utf-8")
fmt.Fprintf(w, "<h2>vmagent</h2>")
fmt.Fprintf(w, "See docs at <a href='https://docs.victoriametrics.com/vmagent.html'>https://docs.victoriametrics.com/vmagent.html</a></br>")
fmt.Fprintf(w, "Useful endpoints:</br>")
httpserver.WriteAPIHelp(w, [][2]string{
{"targets", "status for discovered active targets"},
{"service-discovery", "labels before and after relabeling for discovered targets"},
{"metric-relabel-debug", "debug metric relabeling"},
{"api/v1/targets", "advanced information about discovered targets in JSON format"},
{"config", "-promscrape.config contents"},
{"metrics", "available service metrics"},
{"flags", "command-line flags"},
{"-/reload", "reload configuration"},
})
return true
}
path := strings.Replace(r.URL.Path, "//", "/", -1)
if strings.HasPrefix(path, "/prometheus/api/v1/import/prometheus") || strings.HasPrefix(path, "/api/v1/import/prometheus") {
prometheusimportRequests.Inc()
if err := prometheusimport.InsertHandler(nil, r); err != nil {
prometheusimportErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
statusCode := http.StatusNoContent
if strings.HasPrefix(path, "/prometheus/api/v1/import/prometheus/metrics/job/") ||
strings.HasPrefix(path, "/api/v1/import/prometheus/metrics/job/") {
// Return 200 status code for pushgateway requests.
// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3636
statusCode = http.StatusOK
}
w.WriteHeader(statusCode)
return true
}
if strings.HasPrefix(path, "/datadog/") {
// Trim suffix from paths starting from /datadog/ in order to support legacy DataDog agent.
// See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/2670
path = strings.TrimSuffix(path, "/")
}
switch path {
case "/prometheus/api/v1/write", "/api/v1/write":
prometheusWriteRequests.Inc()
if err := promremotewrite.InsertHandler(nil, r); err != nil {
prometheusWriteErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
w.WriteHeader(http.StatusNoContent)
return true
case "/prometheus/api/v1/import", "/api/v1/import":
vmimportRequests.Inc()
if err := vmimport.InsertHandler(nil, r); err != nil {
vmimportErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
w.WriteHeader(http.StatusNoContent)
return true
case "/prometheus/api/v1/import/csv", "/api/v1/import/csv":
csvimportRequests.Inc()
if err := csvimport.InsertHandler(nil, r); err != nil {
csvimportErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
w.WriteHeader(http.StatusNoContent)
return true
case "/prometheus/api/v1/import/native", "/api/v1/import/native":
nativeimportRequests.Inc()
if err := native.InsertHandler(nil, r); err != nil {
nativeimportErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
w.WriteHeader(http.StatusNoContent)
return true
case "/influx/write", "/influx/api/v2/write", "/write", "/api/v2/write":
influxWriteRequests.Inc()
if err := influx.InsertHandlerForHTTP(nil, r); err != nil {
influxWriteErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
w.WriteHeader(http.StatusNoContent)
return true
case "/influx/query", "/query":
influxQueryRequests.Inc()
influxutils.WriteDatabaseNames(w)
return true
case "/datadog/api/v1/series":
datadogWriteRequests.Inc()
if err := datadog.InsertHandlerForHTTP(nil, r); err != nil {
datadogWriteErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
// See https://docs.datadoghq.com/api/latest/metrics/#submit-metrics
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(202)
fmt.Fprintf(w, `{"status":"ok"}`)
return true
case "/datadog/api/v1/validate":
datadogValidateRequests.Inc()
// See https://docs.datadoghq.com/api/latest/authentication/#validate-api-key
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, `{"valid":true}`)
return true
case "/datadog/api/v1/check_run":
datadogCheckRunRequests.Inc()
// See https://docs.datadoghq.com/api/latest/service-checks/#submit-a-service-check
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(202)
fmt.Fprintf(w, `{"status":"ok"}`)
return true
case "/datadog/intake":
datadogIntakeRequests.Inc()
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, `{}`)
return true
case "/datadog/api/v1/metadata":
datadogMetadataRequests.Inc()
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, `{}`)
return true
case "/prometheus/targets", "/targets":
promscrapeTargetsRequests.Inc()
promscrape.WriteHumanReadableTargetsStatus(w, r)
return true
case "/prometheus/service-discovery", "/service-discovery":
promscrapeServiceDiscoveryRequests.Inc()
promscrape.WriteServiceDiscovery(w, r)
return true
case "/prometheus/metric-relabel-debug", "/metric-relabel-debug":
promscrapeMetricRelabelDebugRequests.Inc()
promscrape.WriteMetricRelabelDebug(w, r)
return true
case "/prometheus/target-relabel-debug", "/target-relabel-debug":
promscrapeTargetRelabelDebugRequests.Inc()
promscrape.WriteTargetRelabelDebug(w, r)
return true
case "/prometheus/api/v1/targets", "/api/v1/targets":
promscrapeAPIV1TargetsRequests.Inc()
w.Header().Set("Content-Type", "application/json")
state := r.FormValue("state")
promscrape.WriteAPIV1Targets(w, state)
return true
case "/prometheus/target_response", "/target_response":
promscrapeTargetResponseRequests.Inc()
if err := promscrape.WriteTargetResponse(w, r); err != nil {
promscrapeTargetResponseErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
return true
case "/prometheus/config", "/config":
if !httpserver.CheckAuthFlag(w, r, *configAuthKey, "configAuthKey") {
return true
}
promscrapeConfigRequests.Inc()
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
promscrape.WriteConfigData(w)
return true
case "/prometheus/api/v1/status/config", "/api/v1/status/config":
// See https://prometheus.io/docs/prometheus/latest/querying/api/#config
if !httpserver.CheckAuthFlag(w, r, *configAuthKey, "configAuthKey") {
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 "/prometheus/-/reload", "/-/reload":
promscrapeConfigReloadRequests.Inc()
procutil.SelfSIGHUP()
w.WriteHeader(http.StatusOK)
return true
case "/ready":
if rdy := atomic.LoadInt32(&promscrape.PendingScrapeConfigs); rdy > 0 {
errMsg := fmt.Sprintf("waiting for scrapes to init, left: %d", rdy)
http.Error(w, errMsg, http.StatusTooEarly)
} else {
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
w.WriteHeader(http.StatusOK)
w.Write([]byte("OK"))
}
return true
default:
if strings.HasPrefix(r.URL.Path, "/static") {
staticServer.ServeHTTP(w, r)
return true
}
if remotewrite.MultitenancyEnabled() {
return processMultitenantRequest(w, r, path)
}
return false
}
}
func processMultitenantRequest(w http.ResponseWriter, r *http.Request, path string) bool {
p, err := httpserver.ParsePath(path)
if err != nil {
// Cannot parse multitenant path. Skip it - probably it will be parsed later.
return false
}
if p.Prefix != "insert" {
httpserver.Errorf(w, r, `unsupported multitenant prefix: %q; expected "insert"`, p.Prefix)
return true
}
at, err := auth.NewToken(p.AuthToken)
if err != nil {
httpserver.Errorf(w, r, "cannot obtain auth token: %s", err)
return true
}
if strings.HasPrefix(p.Suffix, "prometheus/api/v1/import/prometheus") {
prometheusimportRequests.Inc()
if err := prometheusimport.InsertHandler(at, r); err != nil {
prometheusimportErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
w.WriteHeader(http.StatusNoContent)
return true
}
if strings.HasPrefix(p.Suffix, "datadog/") {
// Trim suffix from paths starting from /datadog/ in order to support legacy DataDog agent.
// See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/2670
p.Suffix = strings.TrimSuffix(p.Suffix, "/")
}
switch p.Suffix {
case "prometheus/", "prometheus", "prometheus/api/v1/write":
prometheusWriteRequests.Inc()
if err := promremotewrite.InsertHandler(at, r); err != nil {
prometheusWriteErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
w.WriteHeader(http.StatusNoContent)
return true
case "prometheus/api/v1/import":
vmimportRequests.Inc()
if err := vmimport.InsertHandler(at, r); err != nil {
vmimportErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
w.WriteHeader(http.StatusNoContent)
return true
case "prometheus/api/v1/import/csv":
csvimportRequests.Inc()
if err := csvimport.InsertHandler(at, r); err != nil {
csvimportErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
w.WriteHeader(http.StatusNoContent)
return true
case "prometheus/api/v1/import/native":
nativeimportRequests.Inc()
if err := native.InsertHandler(at, r); err != nil {
nativeimportErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
w.WriteHeader(http.StatusNoContent)
return true
case "influx/write", "influx/api/v2/write":
influxWriteRequests.Inc()
if err := influx.InsertHandlerForHTTP(at, r); err != nil {
influxWriteErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
w.WriteHeader(http.StatusNoContent)
return true
case "influx/query":
influxQueryRequests.Inc()
influxutils.WriteDatabaseNames(w)
return true
case "datadog/api/v1/series":
datadogWriteRequests.Inc()
if err := datadog.InsertHandlerForHTTP(at, r); err != nil {
datadogWriteErrors.Inc()
httpserver.Errorf(w, r, "%s", err)
return true
}
// See https://docs.datadoghq.com/api/latest/metrics/#submit-metrics
w.WriteHeader(202)
fmt.Fprintf(w, `{"status":"ok"}`)
return true
case "datadog/api/v1/validate":
datadogValidateRequests.Inc()
// See https://docs.datadoghq.com/api/latest/authentication/#validate-api-key
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, `{"valid":true}`)
return true
case "datadog/api/v1/check_run":
datadogCheckRunRequests.Inc()
// See https://docs.datadoghq.com/api/latest/service-checks/#submit-a-service-check
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(202)
fmt.Fprintf(w, `{"status":"ok"}`)
return true
case "datadog/intake":
datadogIntakeRequests.Inc()
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, `{}`)
return true
case "datadog/api/v1/metadata":
datadogMetadataRequests.Inc()
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, `{}`)
return true
default:
httpserver.Errorf(w, r, "unsupported multitenant path suffix: %q", p.Suffix)
return true
}
}
var (
prometheusWriteRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/write", protocol="promremotewrite"}`)
prometheusWriteErrors = metrics.NewCounter(`vmagent_http_request_errors_total{path="/api/v1/write", protocol="promremotewrite"}`)
vmimportRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/import", protocol="vmimport"}`)
vmimportErrors = metrics.NewCounter(`vmagent_http_request_errors_total{path="/api/v1/import", protocol="vmimport"}`)
csvimportRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/import/csv", protocol="csvimport"}`)
csvimportErrors = metrics.NewCounter(`vmagent_http_request_errors_total{path="/api/v1/import/csv", protocol="csvimport"}`)
prometheusimportRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/import/prometheus", protocol="prometheusimport"}`)
prometheusimportErrors = metrics.NewCounter(`vmagent_http_request_errors_total{path="/api/v1/import/prometheus", protocol="prometheusimport"}`)
nativeimportRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/import/native", protocol="nativeimport"}`)
nativeimportErrors = metrics.NewCounter(`vmagent_http_request_errors_total{path="/api/v1/import/native", protocol="nativeimport"}`)
influxWriteRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/influx/write", protocol="influx"}`)
influxWriteErrors = metrics.NewCounter(`vmagent_http_request_errors_total{path="/influx/write", protocol="influx"}`)
influxQueryRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/influx/query", protocol="influx"}`)
datadogWriteRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/datadog/api/v1/series", protocol="datadog"}`)
datadogWriteErrors = metrics.NewCounter(`vmagent_http_request_errors_total{path="/datadog/api/v1/series", protocol="datadog"}`)
datadogValidateRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/datadog/api/v1/validate", protocol="datadog"}`)
datadogCheckRunRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/datadog/api/v1/check_run", protocol="datadog"}`)
datadogIntakeRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/datadog/intake", protocol="datadog"}`)
datadogMetadataRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/datadog/api/v1/metadata", protocol="datadog"}`)
promscrapeTargetsRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/targets"}`)
promscrapeServiceDiscoveryRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/service-discovery"}`)
promscrapeMetricRelabelDebugRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/metric-relabel-debug"}`)
promscrapeTargetRelabelDebugRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/target-relabel-debug"}`)
promscrapeAPIV1TargetsRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/targets"}`)
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"}`)
promscrapeStatusConfigRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/status/config"}`)
promscrapeConfigReloadRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/-/reload"}`)
)
func usage() {
const s = `
vmagent collects metrics data via popular data ingestion protocols and routes it to VictoriaMetrics.
See the docs at https://docs.victoriametrics.com/vmagent.html .
`
flagutil.Usage(s)
}