feat: use goreleaser

main.go

@@ -0,0 +1,64 @@
+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"
+	date    = "unknown"
+)
+
+func printAppVersion() {
+	fmt.Printf("Version:    %s\n", version)
+	fmt.Printf("Build date: %s\n", date)
+}
+
+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)
+	}()
+}