mirror of
https://github.com/moby/moby.git
synced 2026-01-11 18:51:37 +00:00
59169d0f97
`GET /image/{name}/json` now supports `platform` parameter allowing to
specify which platform variant of a multi-platform image to inspect.
For servers that do not use containerd image store integration, this
option will cause an error if the requested platform doesn't match the
image's actual platform
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
56 lines
1.6 KiB
Go
56 lines
1.6 KiB
Go
package specialimage
|
|
|
|
import (
|
|
"github.com/containerd/platforms"
|
|
"github.com/distribution/reference"
|
|
"github.com/opencontainers/go-digest"
|
|
"github.com/opencontainers/image-spec/specs-go"
|
|
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
|
|
)
|
|
|
|
type PartialOpts struct {
|
|
Stored []ocispec.Platform
|
|
Missing []ocispec.Platform
|
|
}
|
|
|
|
// PartialMultiPlatform creates an index with all platforms in storedPlatforms
|
|
// and missingPlatforms. However, only the blobs of the storedPlatforms are
|
|
// created and stored, while the missingPlatforms are only referenced in the
|
|
// index.
|
|
func PartialMultiPlatform(dir string, imageRef string, opts PartialOpts) (*ocispec.Index, []ocispec.Descriptor, error) {
|
|
ref, err := reference.ParseNormalizedNamed(imageRef)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
|
|
var descs []ocispec.Descriptor
|
|
|
|
for _, platform := range opts.Stored {
|
|
ps := platforms.Format(platform)
|
|
manifestDesc, _, err := oneLayerPlatformManifest(dir, platform, FileInLayer{Path: "bash", Content: []byte("layer-" + ps)})
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
descs = append(descs, manifestDesc)
|
|
}
|
|
|
|
for _, platform := range opts.Missing {
|
|
platformStr := platforms.FormatAll(platform)
|
|
dgst := digest.FromBytes([]byte(platformStr))
|
|
|
|
descs = append(descs, ocispec.Descriptor{
|
|
MediaType: ocispec.MediaTypeImageManifest,
|
|
Size: 128,
|
|
Platform: &platform,
|
|
Digest: dgst,
|
|
})
|
|
}
|
|
|
|
idx, err := multiPlatformImage(dir, ref, ocispec.Index{
|
|
Versioned: specs.Versioned{SchemaVersion: 2},
|
|
MediaType: ocispec.MediaTypeImageIndex,
|
|
Manifests: descs,
|
|
})
|
|
return idx, descs, err
|
|
}
|