275 lines
7.4 KiB
Go
275 lines
7.4 KiB
Go
package proxy
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import (
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"io"
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"sync"
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"testing"
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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/digest"
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"github.com/docker/distribution/manifest"
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"github.com/docker/distribution/manifest/schema1"
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"github.com/docker/distribution/reference"
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"github.com/docker/distribution/registry/client/auth"
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"github.com/docker/distribution/registry/proxy/scheduler"
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"github.com/docker/distribution/registry/storage"
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"github.com/docker/distribution/registry/storage/cache/memory"
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"github.com/docker/distribution/registry/storage/driver/inmemory"
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"github.com/docker/distribution/testutil"
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"github.com/docker/libtrust"
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)
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type statsManifest struct {
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manifests distribution.ManifestService
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stats map[string]int
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}
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type manifestStoreTestEnv struct {
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manifestDigest digest.Digest // digest of the signed manifest in the local storage
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manifests proxyManifestStore
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}
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func (te manifestStoreTestEnv) LocalStats() *map[string]int {
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ls := te.manifests.localManifests.(statsManifest).stats
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return &ls
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}
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func (te manifestStoreTestEnv) RemoteStats() *map[string]int {
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rs := te.manifests.remoteManifests.(statsManifest).stats
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return &rs
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}
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func (sm statsManifest) Delete(ctx context.Context, dgst digest.Digest) error {
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sm.stats["delete"]++
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return sm.manifests.Delete(ctx, dgst)
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}
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func (sm statsManifest) Exists(ctx context.Context, dgst digest.Digest) (bool, error) {
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sm.stats["exists"]++
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return sm.manifests.Exists(ctx, dgst)
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}
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func (sm statsManifest) Get(ctx context.Context, dgst digest.Digest, options ...distribution.ManifestServiceOption) (distribution.Manifest, error) {
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sm.stats["get"]++
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return sm.manifests.Get(ctx, dgst)
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}
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func (sm statsManifest) Put(ctx context.Context, manifest distribution.Manifest, options ...distribution.ManifestServiceOption) (digest.Digest, error) {
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sm.stats["put"]++
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return sm.manifests.Put(ctx, manifest)
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}
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type mockChallenger struct {
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sync.Mutex
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count int
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}
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// Called for remote operations only
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func (m *mockChallenger) tryEstablishChallenges(context.Context) error {
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m.Lock()
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defer m.Unlock()
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m.count++
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return nil
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}
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func (m *mockChallenger) credentialStore() auth.CredentialStore {
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return nil
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}
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func (m *mockChallenger) challengeManager() auth.ChallengeManager {
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return nil
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}
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func newManifestStoreTestEnv(t *testing.T, name, tag string) *manifestStoreTestEnv {
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nameRef, err := reference.ParseNamed(name)
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if err != nil {
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t.Fatalf("unable to parse reference: %s", err)
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}
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k, err := libtrust.GenerateECP256PrivateKey()
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if err != nil {
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t.Fatal(err)
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}
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ctx := context.Background()
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truthRegistry, err := storage.NewRegistry(ctx, inmemory.New(),
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storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()),
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storage.Schema1SigningKey(k))
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if err != nil {
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t.Fatalf("error creating registry: %v", err)
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}
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truthRepo, err := truthRegistry.Repository(ctx, nameRef)
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if err != nil {
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t.Fatalf("unexpected error getting repo: %v", err)
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}
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tr, err := truthRepo.Manifests(ctx)
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if err != nil {
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t.Fatal(err.Error())
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}
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truthManifests := statsManifest{
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manifests: tr,
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stats: make(map[string]int),
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}
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manifestDigest, err := populateRepo(ctx, t, truthRepo, name, tag)
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if err != nil {
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t.Fatalf(err.Error())
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}
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localRegistry, err := storage.NewRegistry(ctx, inmemory.New(), storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), storage.EnableRedirect, storage.DisableDigestResumption, storage.Schema1SigningKey(k))
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if err != nil {
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t.Fatalf("error creating registry: %v", err)
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}
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localRepo, err := localRegistry.Repository(ctx, nameRef)
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if err != nil {
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t.Fatalf("unexpected error getting repo: %v", err)
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}
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lr, err := localRepo.Manifests(ctx)
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if err != nil {
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t.Fatal(err.Error())
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}
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localManifests := statsManifest{
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manifests: lr,
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stats: make(map[string]int),
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}
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s := scheduler.New(ctx, inmemory.New(), "/scheduler-state.json")
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return &manifestStoreTestEnv{
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manifestDigest: manifestDigest,
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manifests: proxyManifestStore{
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ctx: ctx,
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localManifests: localManifests,
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remoteManifests: truthManifests,
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scheduler: s,
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repositoryName: nameRef,
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authChallenger: &mockChallenger{},
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},
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}
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}
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func populateRepo(ctx context.Context, t *testing.T, repository distribution.Repository, name, tag string) (digest.Digest, error) {
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m := schema1.Manifest{
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Versioned: manifest.Versioned{
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SchemaVersion: 1,
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},
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Name: name,
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Tag: tag,
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}
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for i := 0; i < 2; i++ {
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wr, err := repository.Blobs(ctx).Create(ctx)
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if err != nil {
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t.Fatalf("unexpected error creating test upload: %v", err)
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}
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rs, ts, err := testutil.CreateRandomTarFile()
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if err != nil {
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t.Fatalf("unexpected error generating test layer file")
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}
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dgst := digest.Digest(ts)
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if _, err := io.Copy(wr, rs); err != nil {
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t.Fatalf("unexpected error copying to upload: %v", err)
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}
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if _, err := wr.Commit(ctx, distribution.Descriptor{Digest: dgst}); err != nil {
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t.Fatalf("unexpected error finishing upload: %v", err)
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}
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}
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pk, err := libtrust.GenerateECP256PrivateKey()
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if err != nil {
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t.Fatalf("unexpected error generating private key: %v", err)
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}
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sm, err := schema1.Sign(&m, pk)
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if err != nil {
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t.Fatalf("error signing manifest: %v", err)
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}
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ms, err := repository.Manifests(ctx)
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if err != nil {
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t.Fatalf(err.Error())
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}
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dgst, err := ms.Put(ctx, sm)
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if err != nil {
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t.Fatalf("unexpected errors putting manifest: %v", err)
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}
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return dgst, nil
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}
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// TestProxyManifests contains basic acceptance tests
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// for the pull-through behavior
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func TestProxyManifests(t *testing.T) {
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name := "foo/bar"
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env := newManifestStoreTestEnv(t, name, "latest")
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localStats := env.LocalStats()
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remoteStats := env.RemoteStats()
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ctx := context.Background()
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// Stat - must check local and remote
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exists, err := env.manifests.Exists(ctx, env.manifestDigest)
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if err != nil {
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t.Fatalf("Error checking existence")
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}
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if !exists {
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t.Errorf("Unexpected non-existant manifest")
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}
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if (*localStats)["exists"] != 1 && (*remoteStats)["exists"] != 1 {
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t.Errorf("Unexpected exists count : \n%v \n%v", localStats, remoteStats)
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}
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if env.manifests.authChallenger.(*mockChallenger).count != 1 {
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t.Fatalf("Expected 1 auth challenge, got %#v", env.manifests.authChallenger)
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}
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// Get - should succeed and pull manifest into local
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_, err = env.manifests.Get(ctx, env.manifestDigest)
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if err != nil {
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t.Fatal(err)
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}
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if (*localStats)["get"] != 1 && (*remoteStats)["get"] != 1 {
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t.Errorf("Unexpected get count")
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}
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if (*localStats)["put"] != 1 {
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t.Errorf("Expected local put")
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}
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if env.manifests.authChallenger.(*mockChallenger).count != 2 {
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t.Fatalf("Expected 2 auth challenges, got %#v", env.manifests.authChallenger)
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}
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// Stat - should only go to local
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exists, err = env.manifests.Exists(ctx, env.manifestDigest)
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if err != nil {
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t.Fatal(err)
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}
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if !exists {
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t.Errorf("Unexpected non-existant manifest")
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}
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if (*localStats)["exists"] != 2 && (*remoteStats)["exists"] != 1 {
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t.Errorf("Unexpected exists count")
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}
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if env.manifests.authChallenger.(*mockChallenger).count != 2 {
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t.Fatalf("Expected 2 auth challenges, got %#v", env.manifests.authChallenger)
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}
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// Get proxied - won't require another authchallenge
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_, err = env.manifests.Get(ctx, env.manifestDigest)
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if err != nil {
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t.Fatal(err)
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}
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if env.manifests.authChallenger.(*mockChallenger).count != 2 {
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t.Fatalf("Expected 2 auth challenges, got %#v", env.manifests.authChallenger)
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}
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}
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