load: import all platforms

Currently if you try to import a non-native image the blobs will get
GC'd and unpack fails with with "not found" on the blobs.

Import doesn't really have a way to select which platforms to important,
so I don't think it makes sense to make this optional. After all the tar
could just be modified with the desired platforms.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>

Author: cpuguy83

cmd/nerdctl/load.go

@@ -62,13 +62,13 @@ func loadImage(in io.Reader, clicontext *cli.Context) error {
 	defer cancel()
 
 	sn := clicontext.String("snapshotter")
-	imgs, err := client.Import(ctx, in, containerd.WithDigestRef(archive.DigestTranslator(sn)))
+	imgs, err := client.Import(ctx, in, containerd.WithDigestRef(archive.DigestTranslator(sn)), containerd.WithAllPlatforms(true))
 	if err != nil {
 		return err
 	}
+
 	for _, img := range imgs {
 		image := containerd.NewImage(client, img)
-
 		// TODO: Show unpack status
 		fmt.Fprintf(clicontext.App.Writer, "unpacking %s (%s)...", img.Name, img.Target.Digest)
 		err = image.Unpack(ctx, sn)