The script as it was would error out and not find installation candidates for many of the packages, such as "php7.2-fpm".
This is because on Ubuntu 18.04, the universe repo is not enabled by default. We have to enable it to get access to these packages.
CURRENT_IP=$(ip addr | grep 'state UP' -A2 | tail -n1 | awk '{print $2}' | cut -f1 -d'/')
export DEBIAN_FRONTEND=noninteractive
+add-apt-repository universe
apt update
apt install -y git apache2 curl php7.2-fpm php7.2-curl php7.2-mbstring php7.2-ldap \
php7.2-tidy php7.2-xml php7.2-zip php7.2-gd php7.2-mysql mysql-server-5.7 libapache2-mod-php7.2