test(e2e): migrate oras cp and oras discover specs to ZOT

.gitignore

@@ -53,8 +53,8 @@ test/e2e/testdata/distribution/mount_fallback/docker/
 
 # OCI Layout Files ZOT storage files for local E2E testing
 test/e2e/testdata/zot/
-!test/e2e/testdata/zot/command/images/
-!test/e2e/testdata/zot/command/artifacts/
-!test/e2e/testdata/zot/command/blobs/
+!test/e2e/testdata/zot/command/images/**/*
+!test/e2e/testdata/zot/command/artifacts/**/*
+!test/e2e/testdata/zot/command/blobs/**/*
 !test/e2e/testdata/zot/config.json
 !test/e2e/testdata/zot/passwd_bcrypt

test/e2e/internal/testdata/foobar/const.go

@@ -121,6 +121,7 @@ var (
 		{Digest: "8d7a27ff2662", Name: "application/vnd.oci.artifact.manifest.v1+json"},
 		{Digest: "2dbea575a349", Name: "application/vnd.oci.artifact.manifest.v1+json"},
 	}
+
 	ImageReferrersStateKeys = []match.StateKey{
 		{Digest: "0cb8c4da7e9f", Name: "application/vnd.oci.image.manifest.v1+json"},
 		{Digest: "e2c6633a7998", Name: "application/vnd.oci.image.manifest.v1+json"},

test/e2e/internal/testdata/multi_arch/const.go

@@ -27,14 +27,16 @@ var (
 	Manifest                    = `{"mediaType":"application/vnd.oci.image.index.v1+json","schemaVersion":2,"manifests":[{"mediaType":"application/vnd.oci.image.manifest.v1+json","digest":"sha256:9d84a5716c66a1d1b9c13f8ed157ba7d1edfe7f9b8766728b8a1f25c0d9c14c1","size":458,"platform":{"architecture":"amd64","os":"linux"}},{"mediaType":"application/vnd.oci.image.manifest.v1+json","digest":"sha256:4f93460061882467e6fb3b772dc6ab72130d9ac1906aed2fc7589a5cd145433c","size":458,"platform":{"architecture":"arm64","os":"linux"}},{"mediaType":"application/vnd.oci.image.manifest.v1+json","digest":"sha256:58efe73e78fe043ca31b89007a025c594ce12aa7e6da27d21c7b14b50112e255","size":458,"platform":{"architecture":"arm","os":"linux","variant":"v7"}}]}`
 	Descriptor                  = `{"mediaType":"application/vnd.oci.image.index.v1+json","digest":"sha256:e2bfc9cc6a84ec2d7365b5a28c6bc5806b7fa581c9ad7883be955a64e3cc034f","size":706}`
 	AnnotatedDescriptor         = `{"mediaType":"application/vnd.oci.image.index.v1+json","digest":"sha256:e2bfc9cc6a84ec2d7365b5a28c6bc5806b7fa581c9ad7883be955a64e3cc034f","size":706,"annotations":{"org.opencontainers.image.ref.name":"multi"}}`
-	IndexReferrerDigest         = "sha256:d3cf790759b006e1a2aeee52f9b1ee250bb848fce7e873b992b86bf9408f12d0"
+	IndexReferrerDigest         = "sha256:d37baf66300b9006b0f4c7102075d56b970fbf910be5c6bca07fdbb000dfa383"
 	IndexReferrerStateKey       = match.StateKey{Digest: "d3cf790759b0", Name: "application/vnd.oci.image.manifest.v1+json"}
-	IndexReferrerConfigStateKey = match.StateKey{Digest: "44136fa355b3", Name: "referrer.index"}
+	IndexReferrerConfigStateKey = match.StateKey{Digest: "44136fa355b3", Name: "referrer/index"}
 	IndexStateKeys              = []match.StateKey{
 		{Digest: "2ef548696ac7", Name: "hello.tar"},
 		{Digest: "fe9dbc99451d", Name: "application/vnd.oci.image.config.v1+json"},
 		{Digest: "9d84a5716c66", Name: "application/vnd.oci.image.manifest.v1+json"},
 	}
+	// below are newly baked artifacts for ZOT
+	IndexZOTReferrerStateKey = match.StateKey{Digest: "d37baf66300b", Name: "application/vnd.oci.image.manifest.v1+json"}
 )
 
 // child images
@@ -51,17 +53,17 @@ var (
 	LinuxAMD64ConfigDesc = `{"mediaType":"application/vnd.oci.image.config.v1+json","digest":"sha256:fe9dbc99451d0517d65e048c309f0b5afb2cc513b7a3d456b6cc29fe641386c5","size":53}`
 	LinuxAMD64Referrer   = ocispec.Descriptor{
 		MediaType: "application/vnd.oci.image.manifest.v1+json",
-		Digest:    digest.Digest("sha256:57e6462826c85be15f22f824666f6b467d488fa7bc7e2975f43a2fae27a24ef0"),
+		Digest:    digest.Digest("sha256:c5e00045954a70e3fd28307dd543d4cc158946117943700b8f520f72ddca031f"),
 		Annotations: map[string]string{
 			"org.opencontainers.image.created": "2023-02-15T07:56:34Z",
 			"subject":                          "linux/amd64",
 		},
-		ArtifactType: "referrer.image",
-		Size:         481,
+		ArtifactType: "referrer/image",
+		Size:         482,
 	}
 	LayerName                        = "hello.tar"
-	LinuxAMD64ReferrerStateKey       = match.StateKey{Digest: "57e6462826c8", Name: "application/vnd.oci.image.manifest.v1+json"}
-	LinuxAMD64ReferrerConfigStateKey = match.StateKey{Digest: "44136fa355b3", Name: "referrer.image"}
+	LinuxAMD64ReferrerStateKey       = match.StateKey{Digest: "c5e00045954a", Name: "application/vnd.oci.image.manifest.v1+json"}
+	LinuxAMD64ReferrerConfigStateKey = match.StateKey{Digest: "44136fa355b3", Name: "referrer/image"}
 	LinuxAMD64StateKeys              = []match.StateKey{
 		{Digest: "9d84a5716c66", Name: "application/vnd.oci.image.manifest.v1+json"},
 		{Digest: "fe9dbc99451d", Name: "application/vnd.oci.image.config.v1+json"},