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

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pull.

Signed-off-by: Richard Scothern <richard.scothern@docker.com>
This commit is contained in:
Richard Scothern 2016-04-06 17:01:30 -07:00 committed by Richard Scothern
parent 596ca8b86a
commit 0c15ab6952
18 changed files with 39 additions and 409 deletions
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5
configuration/configuration.go
View file

@ -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"`
}

19
docs/configuration.md
View file

@ -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

6
manifests.go
View file

@ -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

7
notifications/listener_test.go
View file

@ -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)
}

4
registry/handlers/api_test.go
View file

@ -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))
}

10
registry/handlers/app.go
View file

@ -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"]

17
registry/proxy/proxymanifeststore_test.go
View file

@ -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)
}

2
registry/root.go
View file

@ -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)

1
registry/storage/blobstore.go
View file

@ -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)),

17
registry/storage/garbagecollect.go
View file

@ -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 {

24
registry/storage/garbagecollect_test.go
View file

@ -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)
// the +1 at the end is for the manifestList
// 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")
after := allBlobs(t, registry)
if len(before) != len(after) {
t.Fatalf("Garbage collection affected storage: %d != %d", len(before), len(after))
}
}

47
registry/storage/manifeststore.go
View file

@ -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
}

43
registry/storage/manifeststore_test.go
View file

@ -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 {

54
registry/storage/paths.go
View file

@ -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
// from the manifest payload data and linked into the blob store, as well.
// the blob store and linked into the revision store.
// 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 {

17
registry/storage/paths_test.go
View file

@ -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",
})

18
registry/storage/registry.go
View file

@ -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
// used in conjunction with disabling signature store.
// key for signing all schema1 manifests.
func Schema1SigningKey(key libtrust.PrivateKey) RegistryOption {
return func(registry *registry) error {
registry.schema1SigningKey = key
@ -118,7 +108,6 @@ func NewRegistry(ctx context.Context, driver storagedriver.StorageDriver, option
},
statter: statter,
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,

131
registry/storage/signaturestore.go
View file

@ -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},
}
}

22
registry/storage/signedmanifesthandler.go
View file

@ -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
}