kubernetes: hide contrib (#320)

This is purely travis (and maybe local testing). Does not warrent (IMHO)
a contrib/ directory. Hide it in a .travis directory.

.travis/kubernetes/15_run_skydns.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# Running skydns based on instructions at: https://testdatamanagement.wordpress.com/2015/09/01/running-kubernetes-in-docker-with-dns-on-a-single-node/
+
+PWD=`pwd`
+BASEDIR=`readlink -e $(dirname ${0})`
+
+cd ${BASEDIR}
+
+KUBECTL='./kubectl'
+
+#RUN_SKYDNS="yes"
+RUN_SKYDNS="no"
+
+wait_until_k8s_ready() {
+	# Wait until kubernetes is up and fully responsive
+	while :
+	do
+   	 ${KUBECTL} get nodes 2>/dev/null | grep -q '127.0.0.1'
+		if [ "${?}" = "0" ]; then
+			break
+		else
+			echo "sleeping for 5 seconds (waiting for kubernetes to start)"
+			sleep 5
+		fi
+	done
+	echo "kubernetes nodes:"
+	${KUBECTL} get nodes
+}
+
+
+if [ "${RUN_SKYDNS}" = "yes" ]; then
+	wait_until_k8s_ready
+
+	echo "Launch kube2sky..."
+	docker run -d --net=host gcr.io/google_containers/kube2sky:1.11 --kube_master_url=http://127.0.0.1:8080 --domain=cluster.local
+
+	echo ""
+
+	echo "Launch SkyDNS..."
+	docker run -d --net=host gcr.io/google_containers/skydns:2015-03-11-001 --machines=http://localhost:4001 --addr=0.0.0.0:53 --domain=cluster.local
+else
+	true
+fi
+
+cd ${PWD}