feat(cmd/rofl): Add support for pushing ORCs into OCI repositories #414
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| package rofl | ||
|
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||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
|
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||
| v1 "github.com/opencontainers/image-spec/specs-go/v1" | ||
| oras "oras.land/oras-go/v2" | ||
| "oras.land/oras-go/v2/content/file" | ||
| "oras.land/oras-go/v2/registry/remote" | ||
| "oras.land/oras-go/v2/registry/remote/auth" | ||
| "oras.land/oras-go/v2/registry/remote/credentials" | ||
| "oras.land/oras-go/v2/registry/remote/retry" | ||
|
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| "github.com/oasisprotocol/oasis-core/go/runtime/bundle" | ||
| ) | ||
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| const ( | ||
| ociTypeOrcConfig = "application/vnd.oasis.orc.config.v1+json" | ||
| ociTypeOrcLayer = "application/vnd.oasis.orc.layer.v1" | ||
| ociTypeOrcArtifact = "application/vnd.oasis.orc" | ||
| ) | ||
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| // PushBundleToOciRepository pushes an ORC bundle to the given remote OCI repository. | ||
| func PushBundleToOciRepository(bundleFn, dst, tag string) error { | ||
| ctx := context.Background() | ||
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| // Open the bundle. | ||
| bnd, err := bundle.Open(bundleFn) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to open bundle: %w", err) | ||
| } | ||
| defer bnd.Close() | ||
|
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| // Create a temporary file store to build the OCI layers. | ||
| tmpDir, err := os.MkdirTemp("", "oasis-orc2oci") | ||
| if err != nil { | ||
| return fmt.Errorf("failed to create temporary directory: %w", err) | ||
| } | ||
| defer os.RemoveAll(tmpDir) | ||
|
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| storeDir := filepath.Join(tmpDir, "oci") | ||
| store, err := file.New(storeDir) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to create temporary OCI store: %w", err) | ||
| } | ||
| defer store.Close() | ||
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| bundleDir := filepath.Join(tmpDir, "bundle") | ||
| if err = bnd.WriteExploded(bundleDir); err != nil { | ||
| return fmt.Errorf("failed to explode bundle: %w", err) | ||
| } | ||
|
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| // Generate the config object from the manifest. | ||
| const manifestName = "META-INF/MANIFEST.MF" | ||
| configDsc, err := store.Add(ctx, manifestName, ociTypeOrcConfig, filepath.Join(bundleDir, manifestName)) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to add config object from manifest: %w", err) | ||
| } | ||
|
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| // Add other files as layers. | ||
| layers := make([]v1.Descriptor, 0, len(bnd.Data)-1) | ||
| for fn := range bnd.Data { | ||
| if fn == manifestName { | ||
| continue | ||
| } | ||
|
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| layerDsc, err := store.Add(ctx, fn, ociTypeOrcLayer, filepath.Join(bundleDir, fn)) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to add OCI layer: %w", err) | ||
| } | ||
|
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| layers = append(layers, layerDsc) | ||
| } | ||
|
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| // Pack the OCI manifest. | ||
| opts := oras.PackManifestOptions{ | ||
| Layers: layers, | ||
| ConfigDescriptor: &configDsc, | ||
| } | ||
| manifestDescriptor, err := oras.PackManifest(ctx, store, oras.PackManifestVersion1_1, ociTypeOrcArtifact, opts) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to pack OCI manifest: %w", err) | ||
| } | ||
|
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| // Tag the manifest. | ||
| if err = store.Tag(ctx, manifestDescriptor, tag); err != nil { | ||
| return fmt.Errorf("failed to tag OCI manifest: %w", err) | ||
| } | ||
|
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| // Connect to remote repository. | ||
| repo, err := remote.NewRepository(dst) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to init remote OCI repository: %w", err) | ||
| } | ||
| creds, err := credentials.NewStoreFromDocker(credentials.StoreOptions{}) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to init OCI credential store: %w", err) | ||
| } | ||
| repo.Client = &auth.Client{ | ||
| Client: retry.DefaultClient, | ||
| Cache: auth.NewCache(), | ||
| Credential: credentials.Credential(creds), | ||
| } | ||
|
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| // Push to remote repository. | ||
| if _, err = oras.Copy(ctx, store, tag, repo, tag, oras.DefaultCopyOptions); err != nil { | ||
| return fmt.Errorf("failed to push to remote OCI repository: %w", err) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
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Will you need to add
oras.landdependency tooasis-sdkthe scheduler too in order to fetch .orc files on the node? Or there you could simply use HTTP GET?There was a problem hiding this comment.
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Yes, but the corresponding Rust package (as the scheduler is written in Rust).