install kubernetes with containerd. no docker

setup-k8s-ctrd.sh

#!/bin/bash
set -o errexit
set -o pipefail

echo "Pre-reqs"
sudo apt-get -y install wget 
sudo modprobe br_netfilter
sudo swapoff -a

VERSION="1.1.4"
echo "Install Containerd ${VERSION}"
wget -q https://storage.googleapis.com/cri-containerd-release/cri-containerd-${VERSION}.linux-amd64.tar.gz
sudo tar --no-overwrite-dir -C / -xzf cri-containerd-${VERSION}.linux-amd64.tar.gz
sudo systemctl enable --now containerd

echo "Install k8s binaries"
sudo apt-get update && sudo apt-get install -y apt-transport-https
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
cat <<EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list
deb http://apt.kubernetes.io/ kubernetes-xenial main
EOF

sudo apt-get update && sudo apt-get install -y kubelet=1.10.* kubeadm=1.10.* kubectl=1.10.*

echo "Setup Kubelet"
cat <<EOF | sudo tee /etc/systemd/system/kubelet.service.d/0-containerd.conf
[Service]                                                 
Environment="KUBELET_EXTRA_ARGS=--container-runtime=remote --runtime-request-timeout=15m --container-runtime-endpoint=unix:///run/containerd/containerd.sock"
EOF
sudo systemctl daemon-reload && sudo systemctl enable kubelet && sudo systemctl start kubelet

echo "Init k8s Cluster"
sudo kubeadm init --pod-network-cidr 10.244.0.0/16 --kubernetes-version stable-1.10 --cri-socket="unix:///run/containerd/containerd.sock" --ignore-preflight-errors="Service-Docker"

echo "Setup k8s Credentials"
echo 'export KUBECONFIG="/etc/kubernetes/admin.conf"' | sudo tee -a /etc/profile
source /etc/profile
sudo chown $(id -u):$(id -g) /etc/kubernetes/admin.conf

echo "Install Calico CNI"
kubectl apply -f https://docs.projectcalico.org/v2.6/getting-started/kubernetes/installation/hosted/kubeadm/1.6/calico.yaml

CALICO_CONF=/etc/cni/net.d/10-calico.conf
while [ ! -f ${CALICO_CONF} ]; do echo "Waiting for Calico"; sleep 2; done

while [[ ! $(kubectl get pods -n kube-system -l k8s-app=kube-dns | awk 'FNR == 2 {print $2}') = "3/3" ]];
do echo "Waiting for kube-dns"; sleep 2; done

echo "Untaint the Master"
kubectl taint nodes $(hostname) node-role.kubernetes.io/master:NoSchedule-