This updates the kubernetes-entrypoint image reference to consume
the publicly available kubernetes-entrypoint image that is built
and maintained under the airshipit namespace, as the stackanetes
image is no longer actively maintained
Change-Id: I5bfdc156ae228ab16da57569ac6b05a9a125cb6a
Signed-off-by: Steve Wilkerson <sw5822@att.com>
b50fae62a4