gcrane

func Copy ¶

func Copy(src, dst string) error

Copy copies a remote image or index from src to dst.

func CopyRepository ¶

func CopyRepository(ctx context.Context, src, dst string, opts ...Option) error

CopyRepository copies everything from the src GCR repository to the dst GCR repository.

func GCRBackoff ¶

func GCRBackoff() retry.Backoff

GCRBackoff returns a retry.Backoff that is suitable for use with gcr.io.

These numbers are based on GCR's posted quotas: https://cloud.google.com/container-registry/quotas - 30k requests per 10 minutes. - 500k requests per 24 hours.

On error, we will wait for: - 6 seconds (in case of very short term 429s from GCS), then - 1 minute (in case of temporary network issues), then - 10 minutes (to get around GCR 10 minute quotas), then fail.

TODO: In theory, we could keep retrying until the next day to get around the 500k limit.