1 files changed, 63 insertions, 9 deletions
diff --git a/cmd/podmanV2/root.go b/cmd/podmanV2/root.go
index 68e8b4531..cb4cb4e00 100644
--- a/cmd/podmanV2/root.go
+++ b/cmd/podmanV2/root.go
@@ -2,24 +2,35 @@ package main
 
 import (
 	"fmt"
+	"log/syslog"
 	"os"
 	"path"
 
 	"github.com/containers/libpod/cmd/podmanV2/registry"
 	"github.com/containers/libpod/libpod/define"
+	"github.com/containers/libpod/pkg/domain/entities"
 	"github.com/containers/libpod/version"
+	"github.com/sirupsen/logrus"
+	logrusSyslog "github.com/sirupsen/logrus/hooks/syslog"
 	"github.com/spf13/cobra"
 )
 
-var rootCmd = &cobra.Command{
-	Use:              path.Base(os.Args[0]),
-	Long:             "Manage pods, containers and images",
-	SilenceUsage:     true,
-	SilenceErrors:    true,
-	TraverseChildren: true,
-	RunE:             registry.SubCommandExists,
-	Version:          version.Version,
-}
+var (
+	rootCmd = &cobra.Command{
+		Use:               path.Base(os.Args[0]),
+		Long:              "Manage pods, containers and images",
+		SilenceUsage:      true,
+		SilenceErrors:     true,
+		TraverseChildren:  true,
+		PersistentPreRunE: preRunE,
+		RunE:              registry.SubCommandExists,
+		Version:           version.Version,
+	}
+
+	logLevels = entities.NewStringSet("debug", "info", "warn", "error", "fatal", "panic")
+	logLevel  = "error"
+	useSyslog bool
+)
 
 func init() {
 	// Override default --help information of `--version` global flag}
@@ -28,6 +39,49 @@ func init() {
 	rootCmd.PersistentFlags().BoolVar(&dummyVersion, "version", false, "Version of Podman")
 	rootCmd.PersistentFlags().StringVarP(&registry.EngineOptions.Uri, "remote", "r", "", "URL to access Podman service")
 	rootCmd.PersistentFlags().StringSliceVar(&registry.EngineOptions.Identities, "identity", []string{}, "path to SSH identity file")
+	rootCmd.PersistentFlags().StringVar(&logLevel, "log-level", "error", fmt.Sprintf("Log messages above specified level (%s)", logLevels.String()))
+	rootCmd.PersistentFlags().BoolVar(&useSyslog, "syslog", false, "Output logging information to syslog as well as the console (default false)")
+
+	cobra.OnInitialize(
+		logging,
+		syslogHook,
+	)
+}
+
+func preRunE(cmd *cobra.Command, args []string) error {
+	cmd.SetHelpTemplate(registry.HelpTemplate())
+	cmd.SetUsageTemplate(registry.UsageTemplate())
+	return nil
+}
+
+func logging() {
+	if !logLevels.Contains(logLevel) {
+		fmt.Fprintf(os.Stderr, "Log Level \"%s\" is not supported, choose from: %s\n", logLevel, logLevels.String())
+		os.Exit(1)
+	}
+
+	level, err := logrus.ParseLevel(logLevel)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+	logrus.SetLevel(level)
+
+	if logrus.IsLevelEnabled(logrus.InfoLevel) {
+		logrus.Infof("%s filtering at log level %s", os.Args[0], logrus.GetLevel())
+	}
+}
+
+func syslogHook() {
+	if useSyslog {
+		hook, err := logrusSyslog.NewSyslogHook("", "", syslog.LOG_INFO, "")
+		if err != nil {
+			logrus.WithError(err).Error("Failed to initialize syslog hook")
+		}
+		if err == nil {
+			logrus.AddHook(hook)
+		}
+	}
 }
 
 func Execute() {