73 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			73 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package main
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import (
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	"fmt"
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	"io"
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	"os"
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	"github.com/containerd/containerd"
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	"github.com/containerd/containerd/log"
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	"github.com/urfave/cli"
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)
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var imagesImportCommand = cli.Command{
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	Name:        "import",
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	Usage:       "import an image",
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	ArgsUsage:   "[flags] <ref> <in>",
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	Description: `Import an image from a tar stream.`,
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	Flags: []cli.Flag{
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		cli.StringFlag{
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			Name:  "ref-object",
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			Value: "",
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			Usage: "reference object e.g. tag@digest (default: use the object specified in ref)",
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		},
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		labelFlag,
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	},
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	Action: func(clicontext *cli.Context) error {
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		var (
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			ref       = clicontext.Args().First()
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			in        = clicontext.Args().Get(1)
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			refObject = clicontext.String("ref-object")
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			labels    = labelArgs(clicontext.StringSlice("label"))
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		)
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		ctx, cancel := appContext(clicontext)
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		defer cancel()
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		client, err := newClient(clicontext)
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		if err != nil {
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			return err
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		}
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		var r io.ReadCloser
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		if in == "-" {
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			r = os.Stdin
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		} else {
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			r, err = os.Open(in)
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			if err != nil {
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				return err
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			}
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		}
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		img, err := client.Import(ctx,
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			ref,
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			r,
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			containerd.WithRefObject(refObject),
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			containerd.WithImportLabels(labels),
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		)
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		if err != nil {
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			return err
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		}
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		if err = r.Close(); err != nil {
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			return err
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		}
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		log.G(ctx).WithField("image", ref).Debug("unpacking")
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		// TODO: Show unpack status
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		fmt.Printf("unpacking %s...", img.Target().Digest)
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		err = img.Unpack(ctx, clicontext.String("snapshotter"))
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		fmt.Println("done")
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		return err
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	},
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}
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