Add login judgment before push

cmd/sealer/cmd/image/push.go

@@ -15,6 +15,10 @@
 package image
 
 import (
+	"fmt"
+	"os"
+	"strings"
+
 	"github.com/spf13/cobra"
 
 	"github.com/sealerio/sealer/pkg/auth"
@@ -34,18 +38,29 @@ var exampleForPushCmd = `
 func NewPushCmd() *cobra.Command {
 	pushCmd := &cobra.Command{
 		Use:   "push",
-		Short: "push ClusterImage to remote registry",
+		Short: "push sealer image to remote registry",
 		// TODO: add long description.
 		Long:    longNewPushCmdDescription,
 		Example: exampleForPushCmd,
 		Args:    cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
-			engine, err := imageengine.NewImageEngine(options.EngineGlobalConfigurations{})
+
+			login, err := checkIsLogin(pushOpts.Authfile)
 			if err != nil {
 				return err
 			}
-			pushOpts.Image = args[0]
-			return engine.Push(pushOpts)
+
+			if login {
+				engine, err := imageengine.NewImageEngine(options.EngineGlobalConfigurations{})
+				if err != nil {
+					return err
+				}
+				pushOpts.Image = args[0]
+				return engine.Push(pushOpts)
+			}
+
+			return nil
+
 		},
 	}
 	pushOpts = &options.PushOptions{}
@@ -56,3 +71,15 @@ func NewPushCmd() *cobra.Command {
 	pushCmd.Flags().BoolVar(&pushOpts.All, "all", true, "also push the images in the list")
 	return pushCmd
 }
+
+func checkIsLogin(filePath string) (bool, error) {
+	authInfo, err := os.ReadFile(filePath)
+	if err != nil {
+		return false, err
+	}
+	count := strings.Count(string(authInfo), "auth")
+	if count > 1 {
+		return true, nil
+	}
+	return false, fmt.Errorf("please login registry")
+}