prometheus-fail2ban-exporter/exporter.go
Markus Pesch 3998f9e2c2
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Initial Commit
2023-10-02 12:50:34 +02:00

67 lines
1.5 KiB
Go

package main
import (
"fmt"
"log"
"os"
"os/signal"
"syscall"
"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/cfg"
"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/collector/f2b"
"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/collector/textfile"
"git.cryptic.systems/volker.raschek/prometheus-fail2ban-exporter/server"
"github.com/prometheus/client_golang/prometheus"
)
var (
version = "dev"
commit = "none"
date = "unknown"
builtBy = "unknown"
)
func printAppVersion() {
fmt.Println(version)
fmt.Printf(" build date: %s\r\n commit hash: %s\r\n built by: %s\r\n", date, commit, builtBy)
}
func main() {
appSettings := cfg.Parse()
if appSettings.VersionMode {
printAppVersion()
return
}
handleGracefulShutdown()
log.Printf("fail2ban exporter version %s", version)
log.Printf("starting server at %s", appSettings.MetricsAddress)
f2bCollector := f2b.NewExporter(appSettings, version)
prometheus.MustRegister(f2bCollector)
textFileCollector := textfile.NewCollector(appSettings)
prometheus.MustRegister(textFileCollector)
if !appSettings.DryRunMode {
svrErr := server.StartServer(appSettings, textFileCollector)
err := <-svrErr
log.Fatal(err)
} else {
log.Print("running in dry-run mode - exiting")
}
}
func handleGracefulShutdown() {
var signals = make(chan os.Signal, 1)
signal.Notify(signals, syscall.SIGTERM)
signal.Notify(signals, syscall.SIGINT)
go func() {
sig := <-signals
log.Printf("caught signal: %+v", sig)
os.Exit(0)
}()
}