feature: add logging to a file (#112)

* feature: add logging to a file

* refactor: move InitLog to util lib

* docs: update signal and management docs

* chore: update docker compose

* set --log-file to console

* chore: comment out log volume in docker compose

Co-authored-by: mlsmaycon <mlsmaycon@gmail.com>

signal/cmd/root.go

@@ -2,10 +2,10 @@ package cmd
 
 import (
 	"fmt"
-	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"os"
 	"os/signal"
+	"runtime"
 )
 
 const (
@@ -14,7 +14,9 @@ const (
 )
 
 var (
-	logLevel string
+	logLevel       string
+	defaultLogFile string
+	logFile        string
 
 	rootCmd = &cobra.Command{
 		Use:   "wiretrustee-signal",
@@ -33,10 +35,14 @@ func Execute() error {
 func init() {
 
 	stopCh = make(chan int)
+	defaultLogFile = "/var/log/wiretrustee/signal.log"
+	if runtime.GOOS == "windows" {
+		defaultLogFile = os.Getenv("PROGRAMDATA") + "\\Wiretrustee\\" + "signal.log"
+	}
 
 	rootCmd.PersistentFlags().StringVar(&logLevel, "log-level", "info", "")
+	rootCmd.PersistentFlags().StringVar(&logFile, "log-file", defaultLogFile, "sets Wiretrustee log path. If console is specified the the log will be output to stdout")
 	rootCmd.AddCommand(runCmd)
-	InitLog(logLevel)
 }
 
 // SetupCloseHandler handles SIGTERM signal and exits with success
@@ -50,13 +56,3 @@ func SetupCloseHandler() {
 		}
 	}()
 }
-
-// InitLog parses and sets log-level input
-func InitLog(logLevel string) {
-	level, err := log.ParseLevel(logLevel)
-	if err != nil {
-		log.Errorf("Failed parsing log-level %s: %s", logLevel, err)
-		os.Exit(ExitSetupFailed)
-	}
-	log.SetLevel(level)
-}