87 lines
2.7 KiB
Go
87 lines
2.7 KiB
Go
package testutil
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import (
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"fmt"
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"github.com/docker/distribution"
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"github.com/docker/distribution/context"
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"github.com/docker/distribution/manifest"
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"github.com/docker/distribution/manifest/manifestlist"
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"github.com/docker/distribution/manifest/schema1"
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"github.com/docker/distribution/manifest/schema2"
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"github.com/docker/libtrust"
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"github.com/opencontainers/go-digest"
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)
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// MakeManifestList constructs a manifest list out of a list of manifest digests
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func MakeManifestList(blobstatter distribution.BlobStatter, manifestDigests []digest.Digest) (*manifestlist.DeserializedManifestList, error) {
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ctx := context.Background()
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var manifestDescriptors []manifestlist.ManifestDescriptor
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for _, manifestDigest := range manifestDigests {
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descriptor, err := blobstatter.Stat(ctx, manifestDigest)
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if err != nil {
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return nil, err
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}
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platformSpec := manifestlist.PlatformSpec{
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Architecture: "atari2600",
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OS: "CP/M",
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Variant: "ternary",
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Features: []string{"VLIW", "superscalaroutoforderdevnull"},
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}
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manifestDescriptor := manifestlist.ManifestDescriptor{
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Descriptor: descriptor,
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Platform: platformSpec,
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}
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manifestDescriptors = append(manifestDescriptors, manifestDescriptor)
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}
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return manifestlist.FromDescriptors(manifestDescriptors)
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}
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// MakeSchema1Manifest constructs a schema 1 manifest from a given list of digests and returns
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// the digest of the manifest
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func MakeSchema1Manifest(digests []digest.Digest) (distribution.Manifest, error) {
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manifest := schema1.Manifest{
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Versioned: manifest.Versioned{
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SchemaVersion: 1,
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},
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Name: "who",
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Tag: "cares",
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}
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for _, digest := range digests {
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manifest.FSLayers = append(manifest.FSLayers, schema1.FSLayer{BlobSum: digest})
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manifest.History = append(manifest.History, schema1.History{V1Compatibility: ""})
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}
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pk, err := libtrust.GenerateECP256PrivateKey()
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if err != nil {
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return nil, fmt.Errorf("unexpected error generating private key: %v", err)
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}
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signedManifest, err := schema1.Sign(&manifest, pk)
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if err != nil {
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return nil, fmt.Errorf("error signing manifest: %v", err)
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}
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return signedManifest, nil
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}
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// MakeSchema2Manifest constructs a schema 2 manifest from a given list of digests and returns
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// the digest of the manifest
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func MakeSchema2Manifest(repository distribution.Repository, digests []digest.Digest) (distribution.Manifest, error) {
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ctx := context.Background()
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blobStore := repository.Blobs(ctx)
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builder := schema2.NewManifestBuilder(blobStore, schema2.MediaTypeImageConfig, []byte{})
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for _, digest := range digests {
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builder.AppendReference(distribution.Descriptor{Digest: digest})
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}
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manifest, err := builder.Build(ctx)
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if err != nil {
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return nil, fmt.Errorf("unexpected error generating manifest: %v", err)
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}
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return manifest, nil
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}
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