Kubeadm-aio: Fix echo outputs

This PS fixes the quotes round the echo statments. Though mostly
cosmetic, it is needed for some things that slipped thorough with ! them.

Change-Id: Ie752cc88732192c51e97a2f44f554ad0474f09e5

tools/kubeadm-aio/assets/kubeadm-aio

@@ -15,23 +15,23 @@
 #    under the License.
 set -xe
 
-echo "Checking cgroups"
+echo 'Checking cgroups'
 if ls -dZ /sys/fs/cgroup | grep -q :svirt_sandbox_file_t: ; then
-  echo "Invocation error: use -v /sys/fs/cgroup:/sys/fs/cgroup:ro parameter to docker run."
+  echo 'Invocation error: use -v /sys/fs/cgroup:/sys/fs/cgroup:ro parameter to docker run.'
   exit 1
 fi
 
-echo "Setting up K8s version to deploy"
+echo 'Setting up K8s version to deploy'
 : ${KUBE_VERSION:="default"}
 sed -i "s|KUBE_VERSION=.*|KUBE_VERSION=${KUBE_VERSION}|g" /etc/kube-version
 
-echo "Setting up device image to use for kube-api"
+echo 'Setting up device image to use for kube-api'
 : ${KUBE_BIND_DEV:="autodetect"}
 sed -i "s|KUBE_BIND_DEV=.*|KUBE_BIND_DEV=${KUBE_BIND_DEV}|g" /etc/kubeapi-device
 
-echo "Setting up container image to use for kubelet"
+echo 'Setting up container image to use for kubelet'
 : ${KUBELET_CONTAINER:="this_one"}
 sed -i "s|KUBELET_CONTAINER=.*|KUBELET_CONTAINER=${KUBELET_CONTAINER}|g" /etc/kubelet-container
 
-echo "Starting Systemd"
+echo 'Starting Systemd'
 exec /bin/systemd --system

tools/kubeadm-aio/assets/usr/bin/kubeadm-aio

@@ -24,25 +24,25 @@ else
   echo "We will use K8s ${KUBE_VERSION}"
 fi
 
-echo "Setting up K8s"
+echo 'Setting up K8s'
 source /etc/kubeapi-device
 if [[ "$KUBE_BIND_DEV" != "autodetect" ]]; then
   KUBE_BIND_IP=$(ip addr list ${KUBE_BIND_DEV} |grep "inet " |cut -d' ' -f6|cut -d/ -f1)
-  echo "We are going to bind the K8s API to: ${KUBE_BIND_IP}"
+  echo 'We are going to bind the K8s API to: ${KUBE_BIND_IP}'
   kubeadm init --skip-preflight-checks ${KUBE_VERSION_FLAG} --api-advertise-addresses ${KUBE_BIND_IP}
 else
   kubeadm init --skip-preflight-checks ${KUBE_VERSION_FLAG}
 fi
 
-echo "Setting up K8s client"
+echo 'Setting up K8s client'
 cp /etc/kubernetes/admin.conf /root/
 export KUBECONFIG=/root/admin.conf
 
-echo "Marking master node as sceduleable"
+echo 'Marking master node as schedulable'
 kubectl taint nodes --all node-role.kubernetes.io/master-
 
-echo "Installing Calico CNI"
+echo 'Installing Calico CNI'
 kubectl create -f http://docs.projectcalico.org/v2.1/getting-started/kubernetes/installation/hosted/kubeadm/1.6/calico.yaml
 
-echo "Setting Up Cluser for OpenStack-Helm dev use"
+echo 'Setting Up Cluser for OpenStack-Helm dev use'
 /usr/bin/openstack-helm-dev-prep

tools/kubeadm-aio/assets/usr/bin/openstack-helm-aio-network-prep

@@ -15,7 +15,7 @@
 #    under the License.
 set -xe
 
-echo "Setting up virtual network devices"
+echo 'Setting up virtual network devices'
 ip link add neutron-ext type dummy || true
 ip link set neutron-ext up
 ip link add neutron-phys type dummy || true

tools/kubeadm-aio/assets/usr/bin/openstack-helm-demo-prep

@@ -15,20 +15,20 @@
 #    under the License.
 set -xe
 
-echo "Setting Kubecfg Location"
+echo 'Setting Kubecfg Location'
 export KUBECONFIG=/root/admin.conf
 
-echo "Cloning OpenStack-Helm"
+echo 'Cloning OpenStack-Helm'
 git clone --depth 1 https://github.com/openstack/openstack-helm.git /opt/openstack-helm
 
-echo "Starting helm local repo"
+echo 'Starting helm local repo'
 helm serve &
 until curl -sSL --connect-timeout 1 http://localhost:8879 > /dev/null; do
-  echo "Waiting for helm serve to start"
+  echo 'Waiting for helm serve to start'
   sleep 2
 done
 helm repo add local http://localhost:8879/charts
 
-echo "Building OpenStack-Helm"
+echo 'Building OpenStack-Helm'
 cd /opt/openstack-helm
 make

tools/kubeadm-aio/assets/usr/bin/openstack-helm-dev-prep

@@ -15,14 +15,13 @@
 #    under the License.
 set -xe
 
-echo "Setting Kubecfg Location"
+echo 'Setting Kubecfg Location'
 export KUBECONFIG=/root/admin.conf
 
-echo "Labeling the nodes for Openstack-Helm deployment"
+echo 'Labeling the nodes for Openstack-Helm deployment'
 kubectl label nodes openstack-control-plane=enabled --all --namespace=openstack --overwrite
 kubectl label nodes openvswitch=enabled --all --namespace=openstack --overwrite
 kubectl label nodes openstack-compute-node=enabled --all --namespace=openstack --overwrite
 
-
-echo "RBAC: applying development rules (totally open!)"
+echo 'RBAC: applying development rules (totally open!)'
 kubectl update -f /opt/rbac/dev.yaml

tools/kubeadm-aio/assets/usr/bin/openstack-helm-nfs-prep

@@ -15,8 +15,8 @@
 #    under the License.
 set -xe
 
-echo "Setting Kubecfg Location"
+echo 'Setting Kubecfg Location'
 export KUBECONFIG=/root/admin.conf
 
-echo "Deploying NFS Provisioner"
+echo 'Deploying NFS Provisioner'
 kubectl create -R -f /opt/nfs-provisioner/