CONTENT_TYPE in this case is `kube-api-content-type=application/vnd.kubernetes.protobuf` and it can be removed since we don’t see a need for setting it differently in the tests. Signed-off-by: Jiaxin Shan <seedjeffwan@gmail.com>
In order to expand the use of kubemark, allow developers to use kubemark with a pre-existing Kubemark master.