Script to install Kubernetes for mainland China

install.sh

# This script is for Ubuntu 16.04 (xenial)

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
cat <<EOF >/etc/apt/sources.list.d/docker.list
deb https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu/ xenial stable
EOF

# from https://yq.aliyun.com/articles/66474
curl https://mirrors.aliyun.com/kubernetes/apt/doc/apt-key.gpg | apt-key add -
cat <<EOF >/etc/apt/sources.list.d/kubernetes.list
deb https://mirrors.ustc.edu.cn/kubernetes/apt kubernetes-xenial main
EOF

swapoff -a

apt-get update
apt-get install -y docker-ce=$(apt-cache madison docker-ce | grep 17.03 | head -1 | awk '{print $3}')
apt-get install -y kubelet kubeadm kubectl

cat << EOF > /etc/docker/daemon.json
{
  "registry-mirrors": [ # from https://ieevee.com/tech/2016/09/28/docker-mirror.html
    "https://docker.mirrors.ustc.edu.cn",
    "https://hub-mirror.c.163.com",
    "https://docker.mirror.aliyuncs.com"
  ]
}
EOF

cat << EOF > /etc/default/kubelet
KUBELET_EXTRA_ARGS=--pod-infra-container-image=gcrxio/pause-amd64:3.0
EOF

mkdir -p /etc/kubernetes/pki/etcd/
cat << EOF > /etc/kubernetes/pki/etcd/ca.crt
${etcd_ca_crt}
EOF

cat << EOF > /etc/kubernetes/pki/etcd/ca.key
${etcd_ca_key}
EOF

cat << EOF > /etc/kubernetes/pki/ca.crt
${k8s_ca_crt}
EOF

cat << EOF > /etc/kubernetes/pki/ca.key
${k8s_ca_key}
EOF

cat << EOF > /root/kubeadm-config.yml
apiVersion: "kubeadm.k8s.io/v1alpha2"
kind: MasterConfiguration
kubernetesVersion: v1.11.3
apiServerCertSANs:
- "172.20.10.3"
api:
  controlPlaneEndpoint: "172.20.10.3:443"
# use it in mainland China only, see https://github.com/mritd/gcr/blob/master/CHANGELOG.md
imageRepository: "gcrxio"
# unifiedControlPlaneImage: ""
etcd:
    local:
        serverCertSANs:
        - ${etcd_server_name}
        - ${host_ip}
        peerCertSANs:
        - ${etcd_server_name}
        - ${host_ip}
        extraArgs:
            name: ${etcd_server_name}
            listen-client-urls: "https://127.0.0.1:2379,https://${host_ip}:2379"
            advertise-client-urls: https://${host_ip}:2379
            listen-peer-urls: https://${host_ip}:2380
            initial-advertise-peer-urls: https://${host_ip}:2380
            initial-cluster: "${cluster}"
            ##### notice this setting !!
            initial-cluster-state: ${state} #new or existing
networking:
  # This CIDR is a Calico default
  podSubnet: "192.168.0.0/16"
EOF

Thanks for the excellent script.
I need your support, how i can run this script step by step.
I have one Master node and 2 workernode.

Dear Nevill,
We need to install the K8s cluster in China and google is not working in china, this is the main reason i am unable to install K8s cluster.
I need to setup following Kubernetes cluster.

1. ONE MASTER NODE
2. TWO WORKER NODE

I just need your support, how can i execute above script ?
Your kind support would be highly appreciated.

@imtiaza1977 This script is relying on kubeadm and set imageRepository to mirrored images on docker hub to work.
Kubernetes and kubeadm are moving fast, I am not sure if this script is still working, but you get the basic idea here.