How to install OpenShift Origin on Ubuntu 18.04

OpenShift.sh

#!/bin/bash

#install Docker CE
#Import the Docker GPG key with the command 
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
sudo apt update && sudo apt -y install docker-ce

sudo usermod -aG docker $USER

#Download OpenShift
wget https://github.com/openshift/origin/releases/download/v3.11.0/openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit.tar.gz
tar xvzf openshift*.tar.gz
cd openshift-origin-client-tools*/
sudo mv  oc kubectl  /usr/local/bin/
oc version

#Insecure registry and starting the cluster
cat << EOF | sudo tee /etc/docker/daemon.json
{
    "insecure-registries" : [ "172.30.0.0/16" ]
}
EOF

sudo systemctl restart docker
oc cluster up

#After the cluster is up, bring it back down with the command:
oc cluster down

#In that file, search for the line:
server: https://127.0.0.1:8443

#Replace that line with:
server: https://SERVER_IP:8443

Where SERVER_IP is the IP address of the hosting server.
Save and close the file. Bring the cluster back up with the command:

oc cluster up --public-hostname=SERVER_IP