b6cec83503
* Add `go vet` to the test stage of the Gitlab CI/CD pipeline * Fix issues raised by `go vet` https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/-/merge_requests/99
67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
package main
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import (
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"fmt"
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"log"
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"os"
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"os/signal"
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"syscall"
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"github.com/prometheus/client_golang/prometheus"
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"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/cfg"
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"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/collector/f2b"
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"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/collector/textfile"
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"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/server"
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)
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var (
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version = "dev"
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commit = "none"
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date = "unknown"
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builtBy = "unknown"
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)
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func printAppVersion() {
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fmt.Println(version)
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fmt.Printf(" build date: %s\r\n commit hash: %s\r\n built by: %s\r\n", date, commit, builtBy)
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}
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func main() {
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appSettings := cfg.Parse()
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if appSettings.VersionMode {
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printAppVersion()
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return
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}
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handleGracefulShutdown()
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log.Printf("fail2ban exporter version %s", version)
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log.Printf("starting server at %s", appSettings.MetricsAddress)
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f2bCollector := f2b.NewExporter(appSettings, version)
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prometheus.MustRegister(f2bCollector)
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textFileCollector := textfile.NewCollector(appSettings)
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prometheus.MustRegister(textFileCollector)
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if !appSettings.DryRunMode {
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svrErr := server.StartServer(appSettings, textFileCollector)
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err := <-svrErr
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log.Fatal(err)
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} else {
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log.Print("running in dry-run mode - exiting")
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}
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}
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func handleGracefulShutdown() {
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var signals = make(chan os.Signal, 1)
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signal.Notify(signals, syscall.SIGTERM)
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signal.Notify(signals, syscall.SIGINT)
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go func() {
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sig := <-signals
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log.Printf("caught signal: %+v", sig)
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os.Exit(0)
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}()
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}
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