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Add image config function.

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Signed-off-by: Lantao Liu <lantaol@google.com>
This commit is contained in:
Lantao Liu 2017-08-30 06:51:17 +00:00
parent 2f237b2fde
commit 76e016ca30
1 changed files with 9 additions and 2 deletions
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11
image.go
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@ -20,10 +20,12 @@ type Image interface {
Target() ocispec.Descriptor Target() ocispec.Descriptor
// Unpack unpacks the image's content into a snapshot // Unpack unpacks the image's content into a snapshot
Unpack(context.Context, string) error Unpack(context.Context, string) error
// RootFS returns the image digests // RootFS returns the unpacked diffids that make up images rootfs.
RootFS(ctx context.Context) ([]digest.Digest, error) RootFS(ctx context.Context) ([]digest.Digest, error)
// Size returns the image size // Size returns the total size of the image's packed resources.
Size(ctx context.Context) (int64, error) Size(ctx context.Context) (int64, error)
// Config descriptor for the image.
Config(ctx context.Context) (ocispec.Descriptor, error)
} }
var _ = (Image)(&image{}) var _ = (Image)(&image{})
@ -52,6 +54,11 @@ func (i *image) Size(ctx context.Context) (int64, error) {
return i.i.Size(ctx, provider) return i.i.Size(ctx, provider)
} }
func (i *image) Config(ctx context.Context) (ocispec.Descriptor, error) {
provider := i.client.ContentStore()
return i.i.Config(ctx, provider)
}
func (i *image) Unpack(ctx context.Context, snapshotterName string) error { func (i *image) Unpack(ctx context.Context, snapshotterName string) error {
layers, err := i.getLayers(ctx) layers, err := i.getLayers(ctx)
if err != nil { if err != nil {