Allow a port to be opened for CDP proxy
Allow a port to be opened for CDP proxy

Signed-off-by: Arjun Naik <9afa56c7967b5e382c018a5d069bd0228633fdfa@gmail.com>

zalando-incubator/kubernetes-on-aws,zalando-incubator/kubernetes-on-aws,zalando-incubator/kubernetes-on-aws