Mercury Vagrant (HGV) Deployment Playbook

Introduction

This Ansible Playbook is designed to setup a Mercury-Like environment on a Production server without the configuration hassle. This playbook was forked from WPEngine's Mercury Vagrant.

Essentially this server setup is a LEMP server except it runs HHVM by default instead of PHP-FPM.

Note: Remeber not to run weird scripts on your server as root without reviewing them first. Please review this playbook to ensure I'm not installing malicious software.

This Playbook will setup:

Percona DB (MySQL)
HHVM (Default)
PHP-FPM (Backup)
Nginx (Customized for WordPress)
Clean WordPress Install (Latest Version)
WP-CLI

Basic version does not include Varnish, Memcached and APC

This playbook will only run on Ubuntu 14.04 LTS or later

Installation

SSH onto a newly created server
Add Ansible with sudo add-apt-repository ppa:ansible/ansible
Update Apt with sudo apt-get update && sudo apt-get upgrade
Install Git and Ansible with sudo apt-get install ansible git
Clone this repository with git clone https://github.com/zach-adams/hgv-deploy-basic
Edit group_vars/all with your specific details with vim|emacs|nano group_vars/all
Edit hosts with your specific hostname vim|emacs|nano hosts
Run Ansible with ansible-playbook -i hosts playbook.yml
Remove the cloned git directory from your server
You're good to go! A new WordPress install running HHVM and Varnish should be waiting for you at your hostname!

Switching HHVM back to PHP-FPM

Your Nginx configuration should automatically facilitate switching to PHP-FPM if there's an issue with HHVM, however if you want to switch back manually you can do so like this:

Open your Nginx configuration with vim|emacs|nano /etc/nginx/sites-available/( Your Hostname )
Find the following section towards the bottom:

    location ~ \.php$ {
        proxy_intercept_errors on;
        error_page 500 501 502 503 = @fallback;
        fastcgi_buffers 8 256k;
        fastcgi_buffer_size 128k;
        fastcgi_intercept_errors on;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_pass hhvm;
    }

Change fastcgi_pass hhvm; to fastcgi_pass php;
Restart Nginx with sudo service nginx restart
You should now be running PHP-FPM! Check to make sure using phpinfo();

Issues