Added my pubkey to the worker nodes.
Added my pubkey to the worker nodes.

Signed-off-by: Arjun Naik <5e82aab4041ad6df455d340e8de44234e9e4f827@zalando.de>

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