NewInMemoryTracker returns a StatusTracker that tracks content status in-memory.

NewResolver returns a new resolver to a Docker registry.

ErrInvalidAuthorization is used when credentials are passed to a server but those credentials are rejected.

ErrNoToken is returned if a request is successful but the body does not contain an authorization token.

Options are used to configured a new Docker register resolver.

Status of a content operation.

StatusTracker to track status of operations.