Can ctl init with index

clitools/pkg/cmd/root/root.go

@@ -2,6 +2,7 @@ package root
 
 import (
 	"flag"
+	"os"
 
 	"github.com/spf13/cobra"
 	"k8s.io/cli-runtime/pkg/genericclioptions"
@@ -15,6 +16,16 @@ import (
 	versioncmd "undecided.project/monok8s/pkg/cmd/version"
 )
 
+func init() {
+	klog.InitFlags(nil)
+
+	if os.Getenv("DEBUG") != "" {
+		_ = flag.Set("v", "4") // debug level
+	} else {
+		_ = flag.Set("v", "0")
+	}
+}
+
 func NewRootCmd() *cobra.Command {
 	flags := genericclioptions.NewConfigFlags(true)
 
@@ -24,7 +35,6 @@ func NewRootCmd() *cobra.Command {
 		SilenceUsage:  true,
 		SilenceErrors: true,
 		PersistentPreRun: func(*cobra.Command, []string) {
-			klog.InitFlags(nil)
 			_ = flag.Set("logtostderr", "true")
 		},
 	}