schema1

Documentation

Overview

Package schema1 provides a converter to fetch an image formatted in Docker Image Manifest v2, Schema 1.

Deprecated: use images formatted in Docker Image Manifest v2, Schema 2, or OCI Image Spec v1.

Index

• func ReadStripSignature(schema1Blob io.Reader) ([]byte, error)
• type ConvertOpt
  • func UseDockerSchema2() ConvertOpt
• type ConvertOptions
• type Converter
  • func NewConverter(contentStore content.Store, fetcher remotes.Fetcher) *Converter
  • func (c *Converter) Convert(ctx context.Context, opts ...ConvertOpt) (ocispec.Descriptor, error)
  • func (c *Converter) Handle(ctx context.Context, desc ocispec.Descriptor) ([]ocispec.Descriptor, error)

Functions

func ReadStripSignature

func ReadStripSignature(schema1Blob io.Reader) ([]byte, error)

ReadStripSignature reads in a schema1 manifest and returns a byte array with the "signatures" field stripped

Types

type ConvertOpt

type ConvertOpt func(context.Context, *ConvertOptions) error

ConvertOpt allows configuring a convert operation.

func UseDockerSchema2

func UseDockerSchema2() ConvertOpt

UseDockerSchema2 is used to indicate that a schema1 manifest should be converted into the media types for a docker schema2 manifest.

type ConvertOptions

type ConvertOptions struct {
	// ManifestMediaType specifies the media type of the manifest OCI descriptor.
	ManifestMediaType string

	// ConfigMediaType specifies the media type of the manifest config OCI
	// descriptor.
	ConfigMediaType string
}

ConvertOptions provides options on converting a docker schema1 manifest.

type Converter

type Converter struct {
	// contains filtered or unexported fields
}

Converter converts schema1 manifests to schema2 on fetch

func NewConverter

func NewConverter(contentStore content.Store, fetcher remotes.Fetcher) *Converter

NewConverter returns a new converter

func (*Converter) Convert

func (c *Converter) Convert(ctx context.Context, opts ...ConvertOpt) (ocispec.Descriptor, error)

Convert a docker manifest to an OCI descriptor

func (*Converter) Handle

func (c *Converter) Handle(ctx context.Context, desc ocispec.Descriptor) ([]ocispec.Descriptor, error)

Handle fetching descriptors for a docker media type