oci

Documentation

Overview

Package oci contains functions for interacting with Zarf packages stored in OCI registries.

Package oci contains functions for interacting with Zarf packages stored in OCI registries.

Package oci contains functions for interacting with Zarf packages stored in OCI registries.

Package oci contains functions for interacting with Zarf packages stored in OCI registries.

Package oci contains functions for interacting with Zarf packages stored in OCI registries.

Index

• Constants
• Variables
• func ReferenceFromMetadata(registryLocation string, metadata *types.ZarfMetadata, suffix string) (*registry.Reference, error)
• type ConfigPartial
• type OrasRemote
  • func NewOrasRemote(url string) (*OrasRemote, error)
  • func (o *OrasRemote) FetchImagesIndex(manifest *ZarfOCIManifest) (index *ocispec.Index, err error)
  • func (o *OrasRemote) FetchLayer(desc ocispec.Descriptor) (bytes []byte, err error)
  • func (o *OrasRemote) FetchManifest(desc ocispec.Descriptor) (manifest *ZarfOCIManifest, err error)
  • func (o *OrasRemote) FetchRoot() (*ZarfOCIManifest, error)
  • func (o *OrasRemote) FetchZarfYAML(manifest *ZarfOCIManifest) (pkg types.ZarfPackage, err error)
  • func (o *OrasRemote) LayersFromPaths(requestedPaths []string) (layers []ocispec.Descriptor, err error)
  • func (o *OrasRemote) LayersFromRequestedComponents(requestedComponents []string) (layers []ocispec.Descriptor, err error)
  • func (o *OrasRemote) PublishPackage(pkg *types.ZarfPackage, sourceDir string, concurrency int) error
  • func (o *OrasRemote) PullLayer(desc ocispec.Descriptor, destinationDir string) error
  • func (o *OrasRemote) PullPackage(destinationDir string, concurrency int, layersToPull ...ocispec.Descriptor) (partialPaths []string, err error)
  • func (o *OrasRemote) PullPackageMetadata(destinationDir string) (err error)
  • func (o *OrasRemote) PushLayer(b []byte, mediaType string) (*ocispec.Descriptor, error)
  • func (o *OrasRemote) WithRepository(ref registry.Reference) error
• type ZarfOCIManifest
  • func NewZarfOCIManifest(manifest *ocispec.Manifest) *ZarfOCIManifest
  • func (m *ZarfOCIManifest) Locate(path string) ocispec.Descriptor
  • func (m *ZarfOCIManifest) SumLayersSize() int64

Constants

const (
	// ZarfLayerMediaTypeBlob is the media type for all Zarf layers due to the range of possible content
	ZarfLayerMediaTypeBlob = "application/vnd.zarf.layer.v1.blob"
	// SkeletonSuffix is the reference suffix used for skeleton packages
	SkeletonSuffix = "skeleton"
)

Variables

var (
	// AlwaysPull is a list of paths that will always be pulled from the remote repository.
	AlwaysPull = []string{config.ZarfYAML, config.ZarfChecksumsTxt, config.ZarfYAMLSignature}
)

Functions

func ReferenceFromMetadata

func ReferenceFromMetadata(registryLocation string, metadata *types.ZarfMetadata, suffix string) (*registry.Reference, error)

ReferenceFromMetadata returns a reference for the given metadata.

prepending the provided prefix

appending the provided suffix to the version

Types

type ConfigPartial

type ConfigPartial struct {
	Architecture string            `json:"architecture"`
	OCIVersion   string            `json:"ociVersion"`
	Annotations  map[string]string `json:"annotations,omitempty"`
}

ConfigPartial is a partial OCI config that is used to create the manifest config.

Unless specified, an empty manifest config will be used: `{}` which causes an error on Google Artifact Registry

to negate this, we create a simple manifest config with some build metadata

the contents of this file are not used by Zarf

type OrasRemote

type OrasRemote struct {
	Transport *utils.Transport
	CopyOpts  oras.CopyOptions
	// contains filtered or unexported fields
}

OrasRemote is a wrapper around the Oras remote repository that includes a progress bar for interactive feedback.

func NewOrasRemote

func NewOrasRemote(url string) (*OrasRemote, error)

NewOrasRemote returns an oras remote repository client and context for the given url.

Registry auth is handled by the Docker CLI's credential store and checked before returning the client

func (*OrasRemote) FetchImagesIndex

func (o *OrasRemote) FetchImagesIndex(manifest *ZarfOCIManifest) (index *ocispec.Index, err error)

FetchImagesIndex fetches the images/index.json file from the remote repository.

func (*OrasRemote) FetchLayer

func (o *OrasRemote) FetchLayer(desc ocispec.Descriptor) (bytes []byte, err error)

FetchLayer fetches the layer with the given descriptor from the remote repository.

func (*OrasRemote) FetchManifest

func (o *OrasRemote) FetchManifest(desc ocispec.Descriptor) (manifest *ZarfOCIManifest, err error)

FetchManifest fetches the manifest with the given descriptor from the remote repository.

func (*OrasRemote) FetchRoot

func (o *OrasRemote) FetchRoot() (*ZarfOCIManifest, error)

FetchRoot fetches the root manifest from the remote repository.

func (*OrasRemote) FetchZarfYAML

func (o *OrasRemote) FetchZarfYAML(manifest *ZarfOCIManifest) (pkg types.ZarfPackage, err error)

FetchZarfYAML fetches the zarf.yaml file from the remote repository.

func (*OrasRemote) LayersFromPaths

func (o *OrasRemote) LayersFromPaths(requestedPaths []string) (layers []ocispec.Descriptor, err error)

LayersFromPaths returns the descriptors for the given paths from the root manifest.

func (*OrasRemote) LayersFromRequestedComponents

func (o *OrasRemote) LayersFromRequestedComponents(requestedComponents []string) (layers []ocispec.Descriptor, err error)

LayersFromRequestedComponents returns the descriptors for the given components from the root manifest.

It also retrieves the descriptors for all image layers that are required by the components.

It also respects the `required` flag on components, and will retrieve all necessary layers for required components.

func (*OrasRemote) PublishPackage

func (o *OrasRemote) PublishPackage(pkg *types.ZarfPackage, sourceDir string, concurrency int) error

PublishPackage publishes the package to the remote repository.

func (*OrasRemote) PullLayer

func (o *OrasRemote) PullLayer(desc ocispec.Descriptor, destinationDir string) error

PullLayer pulls a layer from the remote repository and saves it to `destinationDir/annotationTitle`.

func (*OrasRemote) PullPackage

func (o *OrasRemote) PullPackage(destinationDir string, concurrency int, layersToPull ...ocispec.Descriptor) (partialPaths []string, err error)

PullPackage pulls the package from the remote repository and saves it to the given path.

layersToPull is an optional parameter that allows the caller to specify which layers to pull.

The following layers will ALWAYS be pulled if they exist:

• zarf.yaml
• checksums.txt
• zarf.yaml.sig

func (*OrasRemote) PullPackageMetadata

func (o *OrasRemote) PullPackageMetadata(destinationDir string) (err error)

PullPackageMetadata pulls the package metadata from the remote repository and saves it to `destinationDir`.

func (*OrasRemote) PushLayer

func (o *OrasRemote) PushLayer(b []byte, mediaType string) (*ocispec.Descriptor, error)

PushLayer pushes the given layer (bytes) to the remote repository.

func (*OrasRemote) WithRepository

func (o *OrasRemote) WithRepository(ref registry.Reference) error

WithRepository sets the repository for the remote as well as the auth client.

type ZarfOCIManifest

type ZarfOCIManifest struct {
	ocispec.Manifest
	// contains filtered or unexported fields
}

ZarfOCIManifest is a wrapper around the OCI manifest

it includes the path to the index.json, oci-layout, and image blobs. as well as a few helper functions for locating layers and calculating the size of the layers.

func NewZarfOCIManifest

func NewZarfOCIManifest(manifest *ocispec.Manifest) *ZarfOCIManifest

NewZarfOCIManifest returns a new ZarfOCIManifest.

func (*ZarfOCIManifest) Locate

func (m *ZarfOCIManifest) Locate(path string) ocispec.Descriptor

Locate returns the descriptor for the layer with the given path.

func (*ZarfOCIManifest) SumLayersSize

func (m *ZarfOCIManifest) SumLayersSize() int64

SumLayersSize returns the sum of the size of all the layers in the manifest.