warmer

type FetchLocalSource ¶

type FetchLocalSource func(*config.CacheOptions, string) (v1.Image, error)

FetchLocalSource retrieves a Docker image manifest from a local source. github.com/GoogleContainerTools/kaniko/cache.LocalSource can be used as this type.

type FetchRemoteImage ¶

type FetchRemoteImage func(image string, opts config.RegistryOptions, customPlatform string) (v1.Image, error)

FetchRemoteImage retrieves a Docker image manifest from a remote source. github.com/GoogleContainerTools/kaniko/image/remote.RetrieveRemoteImage can be used as this type.

type OciWarmer ¶

type OciWarmer struct {
	Remote FetchRemoteImage
	Local  FetchLocalSource
	TmpDir string
}

func (w *OciWarmer) Warm(image string, opts *config.WarmerOptions) (v1.Hash, error)

type Warmer ¶

type Warmer struct {
	Remote         FetchRemoteImage
	Local          FetchLocalSource
	TarWriter      io.Writer
	ManifestWriter io.Writer
}

Warmer is used to prepopulate the cache with a Docker image

func (w *Warmer) Warm(image string, opts *config.WarmerOptions) (v1.Hash, error)

tarBuf := new(bytes.Buffer)
manifestBuf := new(bytes.Buffer)
w := &Warmer{
	Remote:         remote.RetrieveRemoteImage,
	Local:          cache.LocalSource,
	TarWriter:      tarBuf,
	ManifestWriter: manifestBuf,
}

options := &config.WarmerOptions{}

digest, err := w.Warm("ubuntu:latest", options)
if err != nil {
	if !cache.IsAlreadyCached(err) {
		log.Fatal(err)
	}
}

log.Printf("digest %v tar len %d\nmanifest:\n%s\n", digest, tarBuf.Len(), manifestBuf.String())