package main import ( "flag" "fmt" "net/http" "os" "time" "github.com/VictoriaMetrics/VictoriaMetrics/app/vlinsert" "github.com/VictoriaMetrics/VictoriaMetrics/app/vlselect" "github.com/VictoriaMetrics/VictoriaMetrics/app/vlstorage" "github.com/VictoriaMetrics/VictoriaMetrics/lib/buildinfo" "github.com/VictoriaMetrics/VictoriaMetrics/lib/cgroup" "github.com/VictoriaMetrics/VictoriaMetrics/lib/envflag" "github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil" "github.com/VictoriaMetrics/VictoriaMetrics/lib/fs" "github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver" "github.com/VictoriaMetrics/VictoriaMetrics/lib/logger" "github.com/VictoriaMetrics/VictoriaMetrics/lib/procutil" "github.com/VictoriaMetrics/VictoriaMetrics/lib/pushmetrics" ) var ( httpListenAddr = flag.String("httpListenAddr", ":9428", "TCP address to listen for http connections. 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") gogc = flag.Int("gogc", 100, "GOGC to use. See https://tip.golang.org/doc/gc-guide") ) 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() cgroup.SetGOGC(*gogc) buildinfo.Init() logger.Init() pushmetrics.Init() logger.Infof("starting VictoriaLogs at %q...", *httpListenAddr) startTime := time.Now() vlstorage.Init() vlselect.Init() vlinsert.Init() go httpserver.Serve(*httpListenAddr, *useProxyProtocol, requestHandler) logger.Infof("started VictoriaLogs in %.3f seconds; see https://docs.victoriametrics.com/VictoriaLogs/", time.Since(startTime).Seconds()) sig := procutil.WaitForSigterm() logger.Infof("received signal %s", sig) logger.Infof("gracefully shutting down webservice at %q", *httpListenAddr) startTime = time.Now() 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()) pushmetrics.Stop() vlinsert.Stop() vlselect.Stop() vlstorage.Stop() fs.MustStopDirRemover() logger.Infof("the VictoriaLogs has been stopped in %.3f seconds", time.Since(startTime).Seconds()) } func requestHandler(w http.ResponseWriter, r *http.Request) bool { if r.URL.Path == "/" { if r.Method != http.MethodGet { return false } w.Header().Add("Content-Type", "text/html; charset=utf-8") fmt.Fprintf(w, "

Single-node VictoriaLogs


") fmt.Fprintf(w, "See docs at https://docs.victoriametrics.com/VictoriaLogs/
") fmt.Fprintf(w, "Useful endpoints:
") httpserver.WriteAPIHelp(w, [][2]string{ {"select/vmui", "Web UI for VictoriaLogs"}, {"metrics", "available service metrics"}, {"flags", "command-line flags"}, }) return true } if vlinsert.RequestHandler(w, r) { return true } if vlselect.RequestHandler(w, r) { return true } return false } func usage() { const s = ` victoria-logs is a log management and analytics service. See the docs at https://docs.victoriametrics.com/VictoriaLogs/ ` flagutil.Usage(s) }