cache

Documentation

Index

• type ChainID
  • func CalculateCacheID(cacheLayers []Layer) (ChainID, error)
  • func (id ChainID) Digest() digest.Digest
  • func (id ChainID) String() string
• type ChainStore
  • func NewImageStore(fs store.Backend, ls store.LayerStore) (ChainStore, error)
• type ImageID
  • func (id ImageID) Digest() digest.Digest
  • func (id ImageID) String() string
• type Layer
  • func (l *Layer) ChainID(parentID ChainID) (ChainID, error)
  • func (l *Layer) String() string
• type LocalImageCache
  • func NewLocalImageCache(chainStore ChainStore) (*LocalImageCache, error)
  • func (lic *LocalImageCache) GetCache(parentID string, layer *Layer) (layerID digest.Digest, err error)
• type NopImageCache
  • func (NopImageCache) GetCache(parentID string, layer *Layer) (layerID digest.Digest, err error)
• type Service
  • func NewService() (Service, error)

Types

type ChainID

type ChainID digest.Digest

ChainID is calculated from a series of serialized cache layers. The layers cacheID is "", but the COPY layer. same ChainID indicates that same entire file system.

func CalculateCacheID

func CalculateCacheID(cacheLayers []Layer) (ChainID, error)

func (ChainID) Digest

func (id ChainID) Digest() digest.Digest

Digest converts ID into a digest

func (ChainID) String

func (id ChainID) String() string

type ChainStore

type ChainStore interface {
	Images() map[ImageID]*v1.Image
	GetChainLayer(id ChainID) (v1.Layer, error)
}

ChainStore is an interface for manipulating images

func NewImageStore

func NewImageStore(fs store.Backend, ls store.LayerStore) (ChainStore, error)

type ImageID

type ImageID digest.Digest

func (ImageID) Digest

func (id ImageID) Digest() digest.Digest

Digest converts ID into a digest

func (ImageID) String

func (id ImageID) String() string

type Layer

type Layer struct {
	// cacheID for layerdb/layersid/cacheID, we will load the content only for COPY layer
	CacheID string `json:"cache_id"`
	// same as v1Layer type
	Type string `json:"type"`
	// same as v1Layer value
	Value string `json:"value"`
}

func (*Layer) ChainID

func (l *Layer) ChainID(parentID ChainID) (ChainID, error)

func (*Layer) String

func (l *Layer) String() string

type LocalImageCache

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

LocalImageCache saves all the layer

func NewLocalImageCache

func NewLocalImageCache(chainStore ChainStore) (*LocalImageCache, error)

func (*LocalImageCache) GetCache

func (lic *LocalImageCache) GetCache(parentID string, layer *Layer) (layerID digest.Digest, err error)

type NopImageCache

type NopImageCache struct {
}

func (NopImageCache) GetCache

func (NopImageCache) GetCache(parentID string, layer *Layer) (layerID digest.Digest, err error)

type Service

type Service interface {
	NewCacheLayer(layer v1.Layer, cacheID digest.Digest) Layer

	CalculateChainID(layers interface{}) (ChainID, error)
}

func NewService

func NewService() (Service, error)