Remove signature store from registry. Return a generated signature for manifest

pull.

Signed-off-by: Richard Scothern <richard.scothern@docker.com>

configuration/configuration.go

@@ -157,11 +157,6 @@ type Configuration struct {
 			// TrustKey is the signing key to use for adding the signature to
 			// schema1 manifests.
 			TrustKey string `yaml:"signingkeyfile,omitempty"`
-
-			// DisableSignatureStore will cause all signatures attached to schema1 manifests
-			// to be ignored. Signatures will be generated on all schema1 manifest requests
-			// rather than only requests which converted schema2 to schema1.
-			DisableSignatureStore bool `yaml:"disablesignaturestore,omitempty"`
 		} `yaml:"schema1,omitempty"`
 	} `yaml:"compatibility,omitempty"`
 }

docs/configuration.md

@@ -243,7 +243,6 @@ information about each option that appears later in this page.
     compatibility:
       schema1:
         signingkeyfile: /etc/registry/key.json
-        disablesignaturestore: true
 
 In some instances a configuration option is **optional** but it contains child
 options marked as **required**. This indicates that you can omit the parent with
@@ -1730,7 +1729,6 @@ To enable pulling private repositories (e.g. `batman/robin`) a username and pass
     compatibility:
       schema1:
         signingkeyfile: /etc/registry/key.json
-        disablesignaturestore: true
 
 Configure handling of older and deprecated features. Each subsection
 defines a such a feature with configurable behavior.
@@ -1756,23 +1754,6 @@ defines a such a feature with configurable behavior.
      startup.
     </td>
   </tr>
-  <tr>
-    <td>
-      <code>disablesignaturestore</code>
-    </td>
-    <td>
-      no
-    </td>
-    <td>
-     Disables storage of signatures attached to schema1 manifests. By default
-     signatures are detached from schema1 manifests, stored, and reattached
-     when the manifest is requested. When this is true, the storage is disabled
-     and a new signature is always generated for schema1 manifests using the
-     schema1 signing key. Disabling signature storage will cause all newly
-     uploaded signatures to be discarded. Existing stored signatures will not
-     be removed but they will not be re-attached to the corresponding manifest.
-    </td>
-  </tr>
 </table>
 
 ## Example: Development configuration

manifests.go

@@ -61,12 +61,6 @@ type ManifestEnumerator interface {
 	Enumerate(ctx context.Context, ingester func(digest.Digest) error) error
 }
 
-// SignaturesGetter provides an interface for getting the signatures of a schema1 manifest. If the digest
-// referred to is not a schema1 manifest, an error should be returned.
-type SignaturesGetter interface {
-	GetSignatures(ctx context.Context, manifestDigest digest.Digest) ([]digest.Digest, error)
-}
-
 // Describable is an interface for descriptors
 type Describable interface {
 	Descriptor() Descriptor

notifications/listener_test.go

@@ -20,7 +20,12 @@ import (
 
 func TestListener(t *testing.T) {
 	ctx := context.Background()
-	registry, err := storage.NewRegistry(ctx, inmemory.New(), storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), storage.EnableDelete, storage.EnableRedirect)
+	k, err := libtrust.GenerateECP256PrivateKey()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	registry, err := storage.NewRegistry(ctx, inmemory.New(), storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), storage.EnableDelete, storage.EnableRedirect, storage.Schema1SigningKey(k))
 	if err != nil {
 		t.Fatalf("error creating registry: %v", err)
 	}

registry/handlers/api_test.go

@@ -1067,13 +1067,13 @@ func testManifestAPISchema1(t *testing.T, env *testEnv, imageName reference.Name
 		t.Fatalf("error decoding fetched manifest: %v", err)
 	}
 
-	// check two signatures were roundtripped
+	// check only 1 signature is returned
 	signatures, err = fetchedManifestByDigest.Signatures()
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	if len(signatures) != 2 {
+	if len(signatures) != 1 {
 		t.Fatalf("expected 2 signature from manifest, got: %d", len(signatures))
 	}
 

registry/handlers/app.go

@@ -155,6 +155,7 @@ func NewApp(ctx context.Context, config *configuration.Configuration) *App {
 	app.configureRedis(config)
 	app.configureLogHook(config)
 
+	options := registrymiddleware.GetRegistryOptions()
 	if config.Compatibility.Schema1.TrustKey != "" {
 		app.trustKey, err = libtrust.LoadKeyFile(config.Compatibility.Schema1.TrustKey)
 		if err != nil {
@@ -169,6 +170,8 @@ func NewApp(ctx context.Context, config *configuration.Configuration) *App {
 		}
 	}
 
+	options = append(options, storage.Schema1SigningKey(app.trustKey))
+
 	if config.HTTP.Host != "" {
 		u, err := url.Parse(config.HTTP.Host)
 		if err != nil {
@@ -177,17 +180,10 @@ func NewApp(ctx context.Context, config *configuration.Configuration) *App {
 		app.httpHost = *u
 	}
 
-	options := registrymiddleware.GetRegistryOptions()
-
 	if app.isCache {
 		options = append(options, storage.DisableDigestResumption)
 	}
 
-	if config.Compatibility.Schema1.DisableSignatureStore {
-		options = append(options, storage.DisableSchema1Signatures)
-		options = append(options, storage.Schema1SigningKey(app.trustKey))
-	}
-
 	// configure deletion
 	if d, ok := config.Storage["delete"]; ok {
 		e, ok := d["enabled"]

registry/proxy/proxymanifeststore_test.go

@@ -60,12 +60,6 @@ func (sm statsManifest) Put(ctx context.Context, manifest distribution.Manifest,
 	return sm.manifests.Put(ctx, manifest)
 }
 
-/*func (sm statsManifest) Enumerate(ctx context.Context, manifests []distribution.Manifest, last distribution.Manifest) (n int, err error) {
-	sm.stats["enumerate"]++
-	return sm.manifests.Enumerate(ctx, manifests, last)
-}
-*/
-
 type mockChallenger struct {
 	sync.Mutex
 	count int
@@ -75,7 +69,6 @@ type mockChallenger struct {
 func (m *mockChallenger) tryEstablishChallenges(context.Context) error {
 	m.Lock()
 	defer m.Unlock()
-
 	m.count++
 	return nil
 }
@@ -93,9 +86,15 @@ func newManifestStoreTestEnv(t *testing.T, name, tag string) *manifestStoreTestE
 	if err != nil {
 		t.Fatalf("unable to parse reference: %s", err)
 	}
+	k, err := libtrust.GenerateECP256PrivateKey()
+	if err != nil {
+		t.Fatal(err)
+	}
 
 	ctx := context.Background()
-	truthRegistry, err := storage.NewRegistry(ctx, inmemory.New(), storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()))
+	truthRegistry, err := storage.NewRegistry(ctx, inmemory.New(),
+		storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()),
+		storage.Schema1SigningKey(k))
 	if err != nil {
 		t.Fatalf("error creating registry: %v", err)
 	}
@@ -117,7 +116,7 @@ func newManifestStoreTestEnv(t *testing.T, name, tag string) *manifestStoreTestE
 		t.Fatalf(err.Error())
 	}
 
-	localRegistry, err := storage.NewRegistry(ctx, inmemory.New(), storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), storage.EnableRedirect, storage.DisableDigestResumption)
+	localRegistry, err := storage.NewRegistry(ctx, inmemory.New(), storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), storage.EnableRedirect, storage.DisableDigestResumption, storage.Schema1SigningKey(k))
 	if err != nil {
 		t.Fatalf("error creating registry: %v", err)
 	}

registry/root.go

@@ -69,7 +69,7 @@ var GCCmd = &cobra.Command{
 			os.Exit(1)
 		}
 
-		registry, err := storage.NewRegistry(ctx, driver, storage.DisableSchema1Signatures, storage.Schema1SigningKey(k))
+		registry, err := storage.NewRegistry(ctx, driver, storage.Schema1SigningKey(k))
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "failed to construct registry: %v", err)
 			os.Exit(1)

registry/storage/blobstore.go

@@ -75,7 +75,6 @@ func (bs *blobStore) Put(ctx context.Context, mediaType string, p []byte) (distr
 	}
 
 	// TODO(stevvooe): Write out mediatype here, as well.
-
 	return distribution.Descriptor{
 		Size: int64(len(p)),
 

registry/storage/garbagecollect.go

@@ -6,7 +6,6 @@ import (
 	"github.com/docker/distribution"
 	"github.com/docker/distribution/context"
 	"github.com/docker/distribution/digest"
-	"github.com/docker/distribution/manifest/schema1"
 	"github.com/docker/distribution/manifest/schema2"
 	"github.com/docker/distribution/reference"
 	"github.com/docker/distribution/registry/storage/driver"
@@ -71,22 +70,6 @@ func MarkAndSweep(ctx context.Context, storageDriver driver.StorageDriver, regis
 			}
 
 			switch manifest.(type) {
-			case *schema1.SignedManifest:
-				signaturesGetter, ok := manifestService.(distribution.SignaturesGetter)
-				if !ok {
-					return fmt.Errorf("unable to convert ManifestService into SignaturesGetter")
-				}
-				signatures, err := signaturesGetter.GetSignatures(ctx, dgst)
-				if err != nil {
-					return fmt.Errorf("failed to get signatures for signed manifest: %v", err)
-				}
-				for _, signatureDigest := range signatures {
-					if dryRun {
-						emit("%s: marking signature %s", repoName, signatureDigest)
-					}
-					markSet[signatureDigest] = struct{}{}
-				}
-				break
 			case *schema2.DeserializedManifest:
 				config := manifest.(*schema2.DeserializedManifest).Config
 				if dryRun {

registry/storage/garbagecollect_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/docker/distribution/registry/storage/driver"
 	"github.com/docker/distribution/registry/storage/driver/inmemory"
 	"github.com/docker/distribution/testutil"
+	"github.com/docker/libtrust"
 )
 
 type image struct {
@@ -22,7 +23,11 @@ type image struct {
 
 func createRegistry(t *testing.T, driver driver.StorageDriver) distribution.Namespace {
 	ctx := context.Background()
-	registry, err := NewRegistry(ctx, driver, EnableDelete)
+	k, err := libtrust.GenerateECP256PrivateKey()
+	if err != nil {
+		t.Fatal(err)
+	}
+	registry, err := NewRegistry(ctx, driver, EnableDelete, Schema1SigningKey(k))
 	if err != nil {
 		t.Fatalf("Failed to construct namespace")
 	}
@@ -139,13 +144,13 @@ func TestNoDeletionNoEffect(t *testing.T) {
 	ctx := context.Background()
 	inmemoryDriver := inmemory.New()
 
-	registry := createRegistry(t, inmemoryDriver)
+	registry := createRegistry(t, inmemory.New())
 	repo := makeRepository(t, registry, "palailogos")
 	manifestService, err := repo.Manifests(ctx)
 
 	image1 := uploadRandomSchema1Image(t, repo)
 	image2 := uploadRandomSchema1Image(t, repo)
-	image3 := uploadRandomSchema2Image(t, repo)
+	uploadRandomSchema2Image(t, repo)
 
 	// construct manifestlist for fun.
 	blobstatter := registry.BlobStatter()
@@ -160,20 +165,17 @@ func TestNoDeletionNoEffect(t *testing.T) {
 		t.Fatalf("Failed to add manifest list: %v", err)
 	}
 
+	before := allBlobs(t, registry)
+
 	// Run GC
 	err = MarkAndSweep(context.Background(), inmemoryDriver, registry, false)
 	if err != nil {
 		t.Fatalf("Failed mark and sweep: %v", err)
 	}
 
-	blobs := allBlobs(t, registry)
+	after := allBlobs(t, registry)
-
+	if len(before) != len(after) {
-	// the +1 at the end is for the manifestList
+		t.Fatalf("Garbage collection affected storage: %d != %d", len(before), len(after))
-	// the first +3 at the end for each manifest's blob
-	// the second +3 at the end for each manifest's signature/config layer
-	totalBlobCount := len(image1.layers) + len(image2.layers) + len(image3.layers) + 1 + 3 + 3
-	if len(blobs) != totalBlobCount {
-		t.Fatalf("Garbage collection affected storage")
 	}
 }
 

registry/storage/manifeststore.go

@@ -2,7 +2,6 @@ package storage
 
 import (
 	"fmt"
-	"path"
 
 	"encoding/json"
 	"github.com/docker/distribution"
@@ -12,7 +11,6 @@ import (
 	"github.com/docker/distribution/manifest/manifestlist"
 	"github.com/docker/distribution/manifest/schema1"
 	"github.com/docker/distribution/manifest/schema2"
-	"github.com/docker/distribution/registry/storage/driver"
 )
 
 // A ManifestHandler gets and puts manifests of a particular type.
@@ -141,48 +139,3 @@ func (ms *manifestStore) Enumerate(ctx context.Context, ingester func(digest.Dig
 	})
 	return err
 }
-
-// Only valid for schema1 signed manifests
-func (ms *manifestStore) GetSignatures(ctx context.Context, manifestDigest digest.Digest) ([]digest.Digest, error) {
-	// sanity check that digest refers to a schema1 digest
-	manifest, err := ms.Get(ctx, manifestDigest)
-	if err != nil {
-		return nil, err
-	}
-
-	if _, ok := manifest.(*schema1.SignedManifest); !ok {
-		return nil, fmt.Errorf("digest %v is not for schema1 manifest", manifestDigest)
-	}
-
-	signaturesPath, err := pathFor(manifestSignaturesPathSpec{
-		name:     ms.repository.Named().Name(),
-		revision: manifestDigest,
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	var digests []digest.Digest
-	alg := string(digest.SHA256)
-	signaturePaths, err := ms.blobStore.driver.List(ctx, path.Join(signaturesPath, alg))
-
-	switch err.(type) {
-	case nil:
-		break
-	case driver.PathNotFoundError:
-		// Manifest may have been pushed with signature store disabled
-		return digests, nil
-	default:
-		return nil, err
-	}
-
-	for _, sigPath := range signaturePaths {
-		sigdigest, err := digest.ParseDigest(alg + ":" + path.Base(sigPath))
-		if err != nil {
-			// merely found not a digest
-			continue
-		}
-		digests = append(digests, sigdigest)
-	}
-	return digests, nil
-}

registry/storage/manifeststore_test.go

@@ -52,15 +52,11 @@ func newManifestStoreTestEnv(t *testing.T, name reference.Named, tag string, opt
 }
 
 func TestManifestStorage(t *testing.T) {
-	testManifestStorage(t, BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), EnableDelete, EnableRedirect)
-}
-
-func TestManifestStorageDisabledSignatures(t *testing.T) {
 	k, err := libtrust.GenerateECP256PrivateKey()
 	if err != nil {
 		t.Fatal(err)
 	}
-	testManifestStorage(t, BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), EnableDelete, EnableRedirect, DisableSchema1Signatures, Schema1SigningKey(k))
+	testManifestStorage(t, BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), EnableDelete, EnableRedirect, Schema1SigningKey(k))
 }
 
 func testManifestStorage(t *testing.T, options ...RegistryOption) {
@@ -71,7 +67,6 @@ func testManifestStorage(t *testing.T, options ...RegistryOption) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	equalSignatures := env.registry.(*registry).schema1SignaturesEnabled
 
 	m := schema1.Manifest{
 		Versioned: manifest.Versioned{
@@ -175,12 +170,6 @@ func testManifestStorage(t *testing.T, options ...RegistryOption) {
 		t.Fatalf("fetched payload does not match original payload: %q != %q", fetchedManifest.Canonical, sm.Canonical)
 	}
 
-	if equalSignatures {
-		if !reflect.DeepEqual(fetchedManifest, sm) {
-			t.Fatalf("fetched manifest not equal: %#v != %#v", fetchedManifest.Manifest, sm.Manifest)
-		}
-	}
-
 	_, pl, err := fetchedManifest.Payload()
 	if err != nil {
 		t.Fatalf("error getting payload %#v", err)
@@ -223,12 +212,6 @@ func testManifestStorage(t *testing.T, options ...RegistryOption) {
 		t.Fatalf("fetched manifest not equal: %q != %q", byDigestManifest.Canonical, fetchedManifest.Canonical)
 	}
 
-	if equalSignatures {
-		if !reflect.DeepEqual(fetchedByDigest, fetchedManifest) {
-			t.Fatalf("fetched manifest not equal: %#v != %#v", fetchedByDigest, fetchedManifest)
-		}
-	}
-
 	sigs, err := fetchedJWS.Signatures()
 	if err != nil {
 		t.Fatalf("unable to extract signatures: %v", err)
@@ -285,17 +268,6 @@ func testManifestStorage(t *testing.T, options ...RegistryOption) {
 		t.Fatalf("unexpected error verifying manifest: %v", err)
 	}
 
-	// Assemble our payload and two signatures to get what we expect!
-	expectedJWS, err := libtrust.NewJSONSignature(payload, sigs[0], sigs2[0])
-	if err != nil {
-		t.Fatalf("unexpected error merging jws: %v", err)
-	}
-
-	expectedSigs, err := expectedJWS.Signatures()
-	if err != nil {
-		t.Fatalf("unexpected error getting expected signatures: %v", err)
-	}
-
 	_, pl, err = fetched.Payload()
 	if err != nil {
 		t.Fatalf("error getting payload %#v", err)
@@ -315,19 +287,6 @@ func testManifestStorage(t *testing.T, options ...RegistryOption) {
 		t.Fatalf("payloads are not equal")
 	}
 
-	if equalSignatures {
-		receivedSigs, err := receivedJWS.Signatures()
-		if err != nil {
-			t.Fatalf("error getting signatures: %v", err)
-		}
-
-		for i, sig := range receivedSigs {
-			if !bytes.Equal(sig, expectedSigs[i]) {
-				t.Fatalf("mismatched signatures from remote: %v != %v", string(sig), string(expectedSigs[i]))
-			}
-		}
-	}
-
 	// Test deleting manifests
 	err = ms.Delete(ctx, dgst)
 	if err != nil {

registry/storage/paths.go

@@ -30,8 +30,6 @@ const (
 // 						revisions
 //							-> <manifest digest path>
 //								-> link
-//								-> signatures
-// 									<algorithm>/<digest>/link
 // 						tags/<tag>
 //							-> current/link
 // 							-> index
@@ -62,8 +60,7 @@ const (
 //
 // The third component of the repository directory is the manifests store,
 // which is made up of a revision store and tag store. Manifests are stored in
-// the blob store and linked into the revision store. Signatures are separated
+// the blob store and linked into the revision store.
-// from the manifest payload data and linked into the blob store, as well.
 // While the registry can save all revisions of a manifest, no relationship is
 // implied as to the ordering of changes to a manifest. The tag store provides
 // support for name, tag lookups of manifests, using "current/link" under a
@@ -77,8 +74,6 @@ const (
 // 	manifestRevisionsPathSpec:      <root>/v2/repositories/<name>/_manifests/revisions/
 // 	manifestRevisionPathSpec:      <root>/v2/repositories/<name>/_manifests/revisions/<algorithm>/<hex digest>/
 // 	manifestRevisionLinkPathSpec:  <root>/v2/repositories/<name>/_manifests/revisions/<algorithm>/<hex digest>/link
-// 	manifestSignaturesPathSpec:    <root>/v2/repositories/<name>/_manifests/revisions/<algorithm>/<hex digest>/signatures/
-// 	manifestSignatureLinkPathSpec: <root>/v2/repositories/<name>/_manifests/revisions/<algorithm>/<hex digest>/signatures/<algorithm>/<hex digest>/link
 //
 //	Tags:
 //
@@ -148,33 +143,6 @@ func pathFor(spec pathSpec) (string, error) {
 		}
 
 		return path.Join(root, "link"), nil
-	case manifestSignaturesPathSpec:
-		root, err := pathFor(manifestRevisionPathSpec{
-			name:     v.name,
-			revision: v.revision,
-		})
-
-		if err != nil {
-			return "", err
-		}
-
-		return path.Join(root, "signatures"), nil
-	case manifestSignatureLinkPathSpec:
-		root, err := pathFor(manifestSignaturesPathSpec{
-			name:     v.name,
-			revision: v.revision,
-		})
-
-		if err != nil {
-			return "", err
-		}
-
-		signatureComponents, err := digestPathComponents(v.signature, false)
-		if err != nil {
-			return "", err
-		}
-
-		return path.Join(root, path.Join(append(signatureComponents, "link")...)), nil
 	case manifestTagsPathSpec:
 		return path.Join(append(repoPrefix, v.name, "_manifests", "tags")...), nil
 	case manifestTagPathSpec:
@@ -325,26 +293,6 @@ type manifestRevisionLinkPathSpec struct {
 
 func (manifestRevisionLinkPathSpec) pathSpec() {}
 
-// manifestSignaturesPathSpec describes the path components for the directory
-// containing all the signatures for the target blob. Entries are named with
-// the underlying key id.
-type manifestSignaturesPathSpec struct {
-	name     string
-	revision digest.Digest
-}
-
-func (manifestSignaturesPathSpec) pathSpec() {}
-
-// manifestSignatureLinkPathSpec describes the path components used to look up
-// a signature file by the hash of its blob.
-type manifestSignatureLinkPathSpec struct {
-	name      string
-	revision  digest.Digest
-	signature digest.Digest
-}
-
-func (manifestSignatureLinkPathSpec) pathSpec() {}
-
 // manifestTagsPathSpec describes the path elements required to point to the
 // manifest tags directory.
 type manifestTagsPathSpec struct {

registry/storage/paths_test.go

@@ -26,21 +26,6 @@ func TestPathMapper(t *testing.T) {
 			},
 			expected: "/docker/registry/v2/repositories/foo/bar/_manifests/revisions/sha256/abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789/link",
 		},
-		{
-			spec: manifestSignatureLinkPathSpec{
-				name:      "foo/bar",
-				revision:  "sha256:abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789",
-				signature: "sha256:abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789",
-			},
-			expected: "/docker/registry/v2/repositories/foo/bar/_manifests/revisions/sha256/abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789/signatures/sha256/abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789/link",
-		},
-		{
-			spec: manifestSignaturesPathSpec{
-				name:     "foo/bar",
-				revision: "sha256:abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789",
-			},
-			expected: "/docker/registry/v2/repositories/foo/bar/_manifests/revisions/sha256/abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789/signatures",
-		},
 		{
 			spec: manifestTagsPathSpec{
 				name: "foo/bar",
@@ -113,7 +98,7 @@ func TestPathMapper(t *testing.T) {
 	// Add a few test cases to ensure we cover some errors
 
 	// Specify a path that requires a revision and get a digest validation error.
-	badpath, err := pathFor(manifestSignaturesPathSpec{
+	badpath, err := pathFor(manifestRevisionPathSpec{
 		name: "foo/bar",
 	})
 

registry/storage/registry.go

@@ -18,7 +18,6 @@ type registry struct {
 	blobDescriptorCacheProvider  cache.BlobDescriptorCacheProvider
 	deleteEnabled                bool
 	resumableDigestEnabled       bool
-	schema1SignaturesEnabled     bool
 	schema1SigningKey            libtrust.PrivateKey
 	blobDescriptorServiceFactory distribution.BlobDescriptorServiceFactory
 }
@@ -47,17 +46,8 @@ func DisableDigestResumption(registry *registry) error {
 	return nil
 }
 
-// DisableSchema1Signatures is a functional option for NewRegistry. It disables
-// signature storage and ensures all schema1 manifests will only be returned
-// with a signature from a provided signing key.
-func DisableSchema1Signatures(registry *registry) error {
-	registry.schema1SignaturesEnabled = false
-	return nil
-}
-
 // Schema1SigningKey returns a functional option for NewRegistry. It sets the
-// signing key for adding a signature to all schema1 manifests. This should be
+// key for signing  all schema1 manifests.
-// used in conjunction with disabling signature store.
 func Schema1SigningKey(key libtrust.PrivateKey) RegistryOption {
 	return func(registry *registry) error {
 		registry.schema1SigningKey = key
@@ -116,9 +106,8 @@ func NewRegistry(ctx context.Context, driver storagedriver.StorageDriver, option
 			statter: statter,
 			pathFn:  bs.path,
 		},
-		statter:                  statter,
+		statter:                statter,
-		resumableDigestEnabled:   true,
+		resumableDigestEnabled: true,
-		schema1SignaturesEnabled: true,
 	}
 
 	for _, option := range options {
@@ -231,11 +220,6 @@ func (repo *repository) Manifests(ctx context.Context, options ...distribution.M
 			ctx:        ctx,
 			repository: repo,
 			blobStore:  blobStore,
-			signatures: &signatureStore{
-				ctx:        ctx,
-				repository: repo,
-				blobStore:  repo.blobStore,
-			},
 		},
 		schema2Handler: &schema2ManifestHandler{
 			ctx:        ctx,

registry/storage/signaturestore.go

@@ -1,131 +0,0 @@
-package storage
-
-import (
-	"path"
-	"sync"
-
-	"github.com/docker/distribution/context"
-	"github.com/docker/distribution/digest"
-)
-
-type signatureStore struct {
-	repository *repository
-	blobStore  *blobStore
-	ctx        context.Context
-}
-
-func (s *signatureStore) Get(dgst digest.Digest) ([][]byte, error) {
-	signaturesPath, err := pathFor(manifestSignaturesPathSpec{
-		name:     s.repository.Named().Name(),
-		revision: dgst,
-	})
-
-	if err != nil {
-		return nil, err
-	}
-
-	// Need to append signature digest algorithm to path to get all items.
-	// Perhaps, this should be in the pathMapper but it feels awkward. This
-	// can be eliminated by implementing listAll on drivers.
-	signaturesPath = path.Join(signaturesPath, "sha256")
-
-	signaturePaths, err := s.blobStore.driver.List(s.ctx, signaturesPath)
-	if err != nil {
-		return nil, err
-	}
-
-	var wg sync.WaitGroup
-	type result struct {
-		index     int
-		signature []byte
-		err       error
-	}
-	ch := make(chan result)
-
-	bs := s.linkedBlobStore(s.ctx, dgst)
-	for i, sigPath := range signaturePaths {
-		sigdgst, err := digest.ParseDigest("sha256:" + path.Base(sigPath))
-		if err != nil {
-			context.GetLogger(s.ctx).Errorf("could not get digest from path: %q, skipping", sigPath)
-			continue
-		}
-
-		wg.Add(1)
-		go func(idx int, sigdgst digest.Digest) {
-			defer wg.Done()
-			context.GetLogger(s.ctx).
-				Debugf("fetching signature %q", sigdgst)
-
-			r := result{index: idx}
-
-			if p, err := bs.Get(s.ctx, sigdgst); err != nil {
-				context.GetLogger(s.ctx).
-					Errorf("error fetching signature %q: %v", sigdgst, err)
-				r.err = err
-			} else {
-				r.signature = p
-			}
-
-			ch <- r
-		}(i, sigdgst)
-	}
-	done := make(chan struct{})
-	go func() {
-		wg.Wait()
-		close(done)
-	}()
-
-	// aggregrate the results
-	signatures := make([][]byte, len(signaturePaths))
-loop:
-	for {
-		select {
-		case result := <-ch:
-			signatures[result.index] = result.signature
-			if result.err != nil && err == nil {
-				// only set the first one.
-				err = result.err
-			}
-		case <-done:
-			break loop
-		}
-	}
-
-	return signatures, err
-}
-
-func (s *signatureStore) Put(dgst digest.Digest, signatures ...[]byte) error {
-	bs := s.linkedBlobStore(s.ctx, dgst)
-	for _, signature := range signatures {
-		if _, err := bs.Put(s.ctx, "application/json", signature); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// linkedBlobStore returns the namedBlobStore of the signatures for the
-// manifest with the given digest. Effectively, each signature link path
-// layout is a unique linked blob store.
-func (s *signatureStore) linkedBlobStore(ctx context.Context, revision digest.Digest) *linkedBlobStore {
-	linkpath := func(name string, dgst digest.Digest) (string, error) {
-		return pathFor(manifestSignatureLinkPathSpec{
-			name:      name,
-			revision:  revision,
-			signature: dgst,
-		})
-
-	}
-
-	return &linkedBlobStore{
-		ctx:        ctx,
-		repository: s.repository,
-		blobStore:  s.blobStore,
-		blobAccessController: &linkedBlobStatter{
-			blobStore:   s.blobStore,
-			repository:  s.repository,
-			linkPathFns: []linkPathFunc{linkpath},
-		},
-		linkPathFns: []linkPathFunc{linkpath},
-	}
-}

registry/storage/signedmanifesthandler.go

@@ -18,7 +18,6 @@ type signedManifestHandler struct {
 	repository *repository
 	blobStore  *linkedBlobStore
 	ctx        context.Context
-	signatures *signatureStore
 }
 
 var _ ManifestHandler = &signedManifestHandler{}
@@ -30,13 +29,6 @@ func (ms *signedManifestHandler) Unmarshal(ctx context.Context, dgst digest.Dige
 		signatures [][]byte
 		err        error
 	)
-	if ms.repository.schema1SignaturesEnabled {
-		// Fetch the signatures for the manifest
-		signatures, err = ms.signatures.Get(dgst)
-		if err != nil {
-			return nil, err
-		}
-	}
 
 	jsig, err := libtrust.NewJSONSignature(content, signatures...)
 	if err != nil {
@@ -47,8 +39,6 @@ func (ms *signedManifestHandler) Unmarshal(ctx context.Context, dgst digest.Dige
 		if err := jsig.Sign(ms.repository.schema1SigningKey); err != nil {
 			return nil, err
 		}
-	} else if !ms.repository.schema1SignaturesEnabled {
-		return nil, fmt.Errorf("missing signing key with signature store disabled")
 	}
 
 	// Extract the pretty JWS
@@ -90,18 +80,6 @@ func (ms *signedManifestHandler) Put(ctx context.Context, manifest distribution.
 		return "", err
 	}
 
-	if ms.repository.schema1SignaturesEnabled {
-		// Grab each json signature and store them.
-		signatures, err := sm.Signatures()
-		if err != nil {
-			return "", err
-		}
-
-		if err := ms.signatures.Put(revision.Digest, signatures...); err != nil {
-			return "", err
-		}
-	}
-
 	return revision.Digest, nil
 }