mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-11-21 14:44:00 +00:00
274 lines
11 KiB
Go
274 lines
11 KiB
Go
package main
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"net/http"
|
|
"os"
|
|
"strings"
|
|
"sync/atomic"
|
|
"time"
|
|
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/csvimport"
|
|
"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/buildinfo"
|
|
"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/writeconcurrencylimiter"
|
|
"github.com/VictoriaMetrics/metrics"
|
|
)
|
|
|
|
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=''")
|
|
influxListenAddr = flag.String("influxListenAddr", "", "TCP and UDP address to listen for Influx line protocol data. Usually :8189 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")
|
|
graphiteListenAddr = flag.String("graphiteListenAddr", "", "TCP and UDP address to listen for Graphite plaintext data. Usually :2003 must be set. Doesn't work if empty")
|
|
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")
|
|
opentsdbHTTPListenAddr = flag.String("opentsdbHTTPListenAddr", "", "TCP address to listen for OpentTSDB HTTP put requests. Usually :4242 must be set. Doesn't work if empty")
|
|
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 are allowed in -promscrape.config by default. This can be changed with -promscrape.config.strictParse")
|
|
)
|
|
|
|
var (
|
|
influxServer *influxserver.Server
|
|
graphiteServer *graphiteserver.Server
|
|
opentsdbServer *opentsdbserver.Server
|
|
opentsdbhttpServer *opentsdbhttpserver.Server
|
|
)
|
|
|
|
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()
|
|
writeconcurrencylimiter.Init()
|
|
if len(*influxListenAddr) > 0 {
|
|
influxServer = influxserver.MustStart(*influxListenAddr, influx.InsertHandlerForReader)
|
|
}
|
|
if len(*graphiteListenAddr) > 0 {
|
|
graphiteServer = graphiteserver.MustStart(*graphiteListenAddr, graphite.InsertHandler)
|
|
}
|
|
if len(*opentsdbListenAddr) > 0 {
|
|
opentsdbServer = opentsdbserver.MustStart(*opentsdbListenAddr, opentsdb.InsertHandler, opentsdbhttp.InsertHandler)
|
|
}
|
|
if len(*opentsdbHTTPListenAddr) > 0 {
|
|
opentsdbhttpServer = opentsdbhttpserver.MustStart(*opentsdbHTTPListenAddr, opentsdbhttp.InsertHandler)
|
|
}
|
|
|
|
promscrape.Init(remotewrite.Push)
|
|
|
|
if len(*httpListenAddr) > 0 {
|
|
go httpserver.Serve(*httpListenAddr, requestHandler)
|
|
}
|
|
logger.Infof("started vmagent in %.3f seconds", time.Since(startTime).Seconds())
|
|
|
|
sig := procutil.WaitForSigterm()
|
|
logger.Infof("received signal %s", sig)
|
|
|
|
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 requestHandler(w http.ResponseWriter, r *http.Request) bool {
|
|
if r.URL.Path == "/" {
|
|
fmt.Fprintf(w, "vmagent - see docs at https://victoriametrics.github.io/vmagent.html")
|
|
return true
|
|
}
|
|
path := strings.Replace(r.URL.Path, "//", "/", -1)
|
|
switch path {
|
|
case "/api/v1/write":
|
|
prometheusWriteRequests.Inc()
|
|
if err := promremotewrite.InsertHandler(r); err != nil {
|
|
prometheusWriteErrors.Inc()
|
|
httpserver.Errorf(w, r, "error in %q: %s", r.URL.Path, err)
|
|
return true
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
return true
|
|
case "/api/v1/import":
|
|
vmimportRequests.Inc()
|
|
if err := vmimport.InsertHandler(r); err != nil {
|
|
vmimportErrors.Inc()
|
|
httpserver.Errorf(w, r, "error in %q: %s", r.URL.Path, err)
|
|
return true
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
return true
|
|
case "/api/v1/import/csv":
|
|
csvimportRequests.Inc()
|
|
if err := csvimport.InsertHandler(r); err != nil {
|
|
csvimportErrors.Inc()
|
|
httpserver.Errorf(w, r, "error in %q: %s", r.URL.Path, err)
|
|
return true
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
return true
|
|
case "/api/v1/import/prometheus":
|
|
prometheusimportRequests.Inc()
|
|
if err := prometheusimport.InsertHandler(r); err != nil {
|
|
prometheusimportErrors.Inc()
|
|
httpserver.Errorf(w, r, "error in %q: %s", r.URL.Path, err)
|
|
return true
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
return true
|
|
case "/api/v1/import/native":
|
|
nativeimportRequests.Inc()
|
|
if err := native.InsertHandler(r); err != nil {
|
|
nativeimportErrors.Inc()
|
|
httpserver.Errorf(w, r, "error in %q: %s", r.URL.Path, err)
|
|
return true
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
return true
|
|
case "/write", "/api/v2/write":
|
|
influxWriteRequests.Inc()
|
|
if err := influx.InsertHandlerForHTTP(r); err != nil {
|
|
influxWriteErrors.Inc()
|
|
httpserver.Errorf(w, r, "error in %q: %s", r.URL.Path, err)
|
|
return true
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
return true
|
|
case "/query":
|
|
influxQueryRequests.Inc()
|
|
influxutils.WriteDatabaseNames(w)
|
|
return true
|
|
case "/targets":
|
|
promscrapeTargetsRequests.Inc()
|
|
promscrape.WriteHumanReadableTargetsStatus(w, r)
|
|
return true
|
|
case "/api/v1/targets":
|
|
promscrapeAPIV1TargetsRequests.Inc()
|
|
w.Header().Set("Content-Type", "application/json; charset=utf-8")
|
|
state := r.FormValue("state")
|
|
promscrape.WriteAPIV1Targets(w, state)
|
|
return true
|
|
case "/-/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
|
|
}
|
|
return false
|
|
}
|
|
|
|
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="/write", protocol="influx"}`)
|
|
influxWriteErrors = metrics.NewCounter(`vmagent_http_request_errors_total{path="/write", protocol="influx"}`)
|
|
|
|
influxQueryRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/query", protocol="influx"}`)
|
|
|
|
promscrapeTargetsRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/targets"}`)
|
|
promscrapeAPIV1TargetsRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/targets"}`)
|
|
|
|
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://victoriametrics.github.io/vmagent.html .
|
|
`
|
|
flagutil.Usage(s)
|
|
}
|