Fix: Use log instead of fmt

cmd/agent.go

@@ -89,12 +89,12 @@ WAIT:
 	case s := <-signalCh:
 		sig = s
 	case err := <-agent.RetryJoinCh():
-		fmt.Println("[ERR] agent: Retry join failed: ", err)
+		log.WithError(err).Error("agent: Retry join failed")
 		return 1
 	case <-ShutdownCh:
 		sig = os.Interrupt
 	}
-	fmt.Printf("Caught signal: %v", sig)
+	log.Infof("Caught signal: %v", sig)
 
 	// Check if this is a SIGHUP
 	if sig == syscall.SIGHUP {
@@ -111,8 +111,7 @@ WAIT:
 	log.Info("agent: Gracefully shutting down agent...")
 	go func() {
 		if err := agent.Stop(); err != nil {
-			fmt.Printf("Error: %s", err)
-			log.Error(fmt.Sprintf("Error: %s", err))
+			log.WithError(err).Error("unable to stop agent")
 			return
 		}
 	}()
@@ -145,7 +144,7 @@ WAIT:
 
 // handleReload is invoked when we should reload our configs, e.g. SIGHUP
 func handleReload() {
-	fmt.Println("Reloading configuration...")
+	log.Info("Reloading configuration...")
 	initConfig()
 	//Config reloading will also reload Notification settings
 	agent.UpdateTags(config.Tags)

cmd/keygen.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 
+	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
 
@@ -26,7 +27,7 @@ var keygenCmd = &cobra.Command{
 			return errors.New("couldn't read enough entropy. Generate more entropy")
 		}
 
-		fmt.Println(base64.StdEncoding.EncodeToString(key))
+		log.Info(base64.StdEncoding.EncodeToString(key))
 		return nil
 	},
 }

cmd/leave.go

@@ -31,6 +31,7 @@ var leaveCmd = &cobra.Command{
 			return err
 		}
 
+		log.Info("Left the cluster successfully")
 		return nil
 	},
 }

cmd/raft.go

@@ -68,7 +68,7 @@ var raftRemovePeerCmd = &cobra.Command{
 		if err := gc.RaftRemovePeerByID(ip, peerID); err != nil {
 			return err
 		}
-		fmt.Println("Peer removed")
+		log.Info("Peer removed")
 
 		return nil
 	},