Install SSL certificates on Ubuntu with Letsencrypt

ssl.sh

#!/bin/bash

#Install/issue letsencrypt certificates on Ubuntu 16.04

if [ $# -ne 2 ]; then
    echo Usage: $0 domain email
    exit 1
fi

domain=$1
email=$2

status=`dpkg -s letsencrypt | grep Status`

#Renewal cron assumes no nginx is using port 443. Please modify accordingly for apache and others
cronjob='0 */12 * * * root service nginx stop && /opt/certbot-auto renew --quiet --no-self-upgrade && service nginx start'

if [ "$status" != "Status: install ok installed" ]; then
	   sudo apt-get -y install letsencrypt
	   sudo echo $cronjob > /etc/cron.d/letsencrypt
fi

#Certificates will be stored in /etc/letsencrypt/live/domain
sudo /opt/certbot-auto certonly -n --standalone -d $domain -m $email --agree-tos