github.com/alibaba/sealer@v0.8.6-0.20220430115802-37a2bdaa8173/sealer/cmd/load.go (about)

     1  // Copyright © 2021 Alibaba Group Holding Ltd.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package cmd
    16  
    17  import (
    18  	"fmt"
    19  	"os"
    20  
    21  	"github.com/spf13/cobra"
    22  
    23  	"github.com/alibaba/sealer/logger"
    24  	"github.com/alibaba/sealer/pkg/image"
    25  )
    26  
    27  var imageSrc string
    28  
    29  // loadCmd represents the load command
    30  var loadCmd = &cobra.Command{
    31  	Use:     "load",
    32  	Short:   "load image from a tar file",
    33  	Long:    `Load an image from a tar archive`,
    34  	Example: `sealer load -i kubernetes.tar`,
    35  	Args:    cobra.NoArgs,
    36  	RunE: func(cmd *cobra.Command, args []string) error {
    37  		ifs, err := image.NewImageFileService()
    38  		if err != nil {
    39  			return err
    40  		}
    41  		if err = ifs.Load(imageSrc); err != nil {
    42  			return fmt.Errorf("failed to load image from %s: %v", imageSrc, err)
    43  		}
    44  		return nil
    45  	},
    46  }
    47  
    48  func init() {
    49  	rootCmd.AddCommand(loadCmd)
    50  	loadCmd.Flags().StringVarP(&imageSrc, "input", "i", "", "read image from tar archive file")
    51  	if err := loadCmd.MarkFlagRequired("input"); err != nil {
    52  		logger.Error("failed to init flag: %v", err)
    53  		os.Exit(1)
    54  	}
    55  }