image

Documentation

Index

• Variables
• func DeleteFromCacheDir(images []string) error
• func DigestByDockerLib(imgClient *client.Client, imgName string) string
• func DigestByGoLib(imgName string) string
• func SaveToDir(images []string, cacheDir string, overwrite bool) error
• func Tag(img string) string
• func TrimDockerIO(name string) string
• func UploadCachedImage(imgName string) error
• func UseDaemon(use bool)
• func UseRemote(use bool)

Variables

var ErrGithubNeedsLogin error

ErrGithubNeedsLogin is thrown when user needs to login specifically to github packages)

var ErrNeedsLogin error

ErrNeedsLogin is thrown when registry needs login (a general error)

Functions

func DeleteFromCacheDir

func DeleteFromCacheDir(images []string) error

DeleteFromCacheDir deletes tar files stored in cache dir

func DigestByDockerLib

func DigestByDockerLib(imgClient *client.Client, imgName string) string

DigestByDockerLib uses client by docker lib to return image digest img.ID in as same as image digest

func DigestByGoLib

func DigestByGoLib(imgName string) string

DigestByGoLib gets image digest uses go-containerregistry lib which is 4s slower thabn local daemon per lookup https://github.com/google/go-containerregistry/issues/627

func SaveToDir

func SaveToDir(images []string, cacheDir string, overwrite bool) error

SaveToDir will cache images on the host

The cache directory currently caches images using the imagename_tag For example, registry.k8s.io/kube-addon-manager:v6.5 would be stored at $CACHE_DIR/registry.k8s.io/kube-addon-manager_v6.5

func Tag

func Tag(img string) string

Tag returns just the image with the tag eg image:tag@sha256:digest -> image:tag if there is an associated tag if not possible, just return the initial img

func TrimDockerIO

func TrimDockerIO(name string) string

Remove docker.io prefix since it won't be included in image names when we call `docker images`.

func UploadCachedImage

func UploadCachedImage(imgName string) error

UploadCachedImage uploads cached image

func UseDaemon

func UseDaemon(use bool)

UseDaemon is if we should look in local daemon for image ref

func UseRemote

func UseRemote(use bool)

UseRemote is if we should look in remote registry for image ref