dockrhelper

func RobustImagePull ¶

func RobustImagePull(imageName string) (closer io.ReadCloser, err error)

RobustImagePull will attempt to use the docker api to pull an image

	if it is not found via the api, it will attempt to use the docker client to pull the image, as that way will
 pull in authentication from linux/mac/whatever keychain. The API proved useless in this case, as all that is
 in the client code and it pulled in way too much garbage code from docker go api
 anyone can feel free to prove me wrong, but github.com/moby/moby has me at my wits'o end