Joomla is a free and open-source content management system (CMS) for publishing web content. It is built on a model–view–controller web application framework that can be used independently of the CMS.
Joomla is written in PHP, uses object-oriented programming (OOP) techniques (since version 1.5) and software design patterns, stores data in a MySQL, MS SQL (since version 2.5), or PostgreSQL (since version 3.0) database, and includes features such as page caching, RSS feeds, printable versions of pages, news flashes, blogs, search, and support for language internationalization.
Setting up the machine to run installation script was like:
## Install needed commands (apt-add-repository)
apt-get update
apt-get -y install software-properties-common -q
apt-get -y install python-software-properties -q
### Install apache
apt-add-repository ppa:ptn107/apache
apt-get update
apt-get install -y apache2
## Install git
apt-get install -y git
## Intall mysql
debconf-set-selections <<< 'mysql-server mysql-server/root_password password qweasd'
debconf-set-selections <<< 'mysql-server mysql-server/root_password_again password qweasd'
apt-get -y install mysql-server
## mysql_secure_installation
### Install PHP7
apt-add-repository -y ppa:ondrej/php
apt-get update
apt-get install php7.0 php7.0-fpm php7.0-mysql php7.0-xml libapache2-mod-php7.0 php7.0-curl php7.0-sqlite php7.0-xdebug php7.0-mcrypt php7.0-gd php-mbstring -y
a2enmod proxy_fcgi setenvif
a2enmod mcrypt
a2enconf php7.0-fpm
apache2ctl restart
This will set up Apache 2.4 that is required by PHP7
Also you may want to dirty install phpMyAdmin in Joomla subfolder for example
wget --no-check-certificate https://files.phpmyadmin.net/phpMyAdmin/4.6.3/phpMyAdmin-4.6.3-all-languages.zip -P /var/tmp/
unzip /var/tmp/phpMyAdmin-4.6.3-all-languages.zip -d /var/public_html/
mv phpMyAdmin-4.6.3-all-languages phpmyadmin
mv phpmyadmin/config.sample.inc.php phpmyadmin/config.inc.php