This is a minor improvement over the 0.1 release but since it fixes #3 it is recommended that you use this one over the 0.1 release.
By default, the supported images are pre-pulled via DaemonSets. This is a one-time operation, only necessary the first time when kubed-sh starts up. If you are in an environment that doesn't allow you to create DaemonSets (you will notice at start-up time) then set the environment variable KUBEDSH_NOPREPULL=true at or before launching kubed-sh.