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package specialimage
import (
"github.com/containerd/platforms"
"github.com/distribution/reference"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
)
// ConfigTarget creates an image index with an image config being used as an
// image target instead of a manifest or index.
func ConfigTarget(dir string) (*ocispec.Index, error) {
const imageRef = "config:latest"
ref, err := reference.ParseNormalizedNamed(imageRef)
if err != nil {
return nil, err
}
desc, err := writeJsonBlob(dir, ocispec.MediaTypeImageConfig, ocispec.Image{
Platform: platforms.MustParse("linux/amd64"),
Config: ocispec.ImageConfig{
Env: []string{"FOO=BAR"},
},
})
if err != nil {
return nil, err
}
desc.Annotations = map[string]string{
"io.containerd.image.name": ref.String(),
}
return ociImage(dir, ref, desc)
}
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