Add a init script for starting Kubernetes

Change-Id: I73f2116b3943fbd2538e1df5ce17c7d6d9bc8168

tools/kube-init.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+
+set -x
+
+# Switch off SE-Linux
+setenforce 0
+
+# Get the latest stable version of kubernetes
+export K8S_VERSION=$(curl -sS https://storage.googleapis.com/kubernetes-release/release/stable.txt)
+echo "K8S_VERSION : ${K8S_VERSION}"
+
+echo "Starting docker service"
+sudo systemctl enable docker.service
+sudo systemctl start docker.service --ignore-dependencies
+echo "Checking docker service"
+sudo docker ps
+
+# Run the docker containers for kubernetes
+echo "Starting Kubernetes containers"
+sudo docker run \
+    --volume=/:/rootfs:ro \
+    --volume=/sys:/sys:ro \
+    --volume=/var/lib/docker/:/var/lib/docker:rw \
+    --volume=/var/lib/kubelet/:/var/lib/kubelet:rw \
+    --volume=/var/run:/var/run:rw \
+    --net=host \
+    --pid=host \
+    --privileged=true \
+    --name=kubelet \
+    -d \
+    gcr.io/google_containers/hyperkube-amd64:${K8S_VERSION} \
+    /hyperkube kubelet \
+        --containerized \
+        --hostname-override="127.0.0.1" \
+        --address="0.0.0.0" \
+        --api-servers=http://localhost:8080 \
+        --config=/etc/kubernetes/manifests \
+        --allow-privileged=true --v=2
+
+
+echo "Download Kubernetes CLI"
+wget -O kubectl "http://storage.googleapis.com/kubernetes-release/release/${K8S_VERSION}/bin/linux/amd64/kubectl"
+chmod 755 kubectl
+./kubectl get nodes
+
+echo "Waiting for master components to start..."
+while true; do
+    running_count=$(./kubectl -s=http://127.0.0.1:8080 get pods --no-headers 2>/dev/null | grep "Running" | wc -l)
+    # We expect to have 3 running pods - etcd, master and kube-proxy.
+    if [ "$running_count" -ge 3 ]; then
+      break
+    fi
+    echo -n "."
+    sleep 1
+done
+echo "SUCCESS"
+echo "Cluster created!"
+echo ""