Purpose: proof of concept of multi-node deployment, configuration and integration on Amazon EC2 cloud using Cfengine.
We start on a Ubuntu VM with Amazon EC2 CLI tools installed, courtesy of Florian of CloudTrainings.com. We configure it with our EC2 credentials.
Then we install Cfengine 3.1.4. Then we run casit_demo.cf to instantiate two servers, "web" and "db", and to install Cfengine 3.1.4 onto them. We then use that Cfengine to install Apache httpd and mod_php and WordPress PHP application on "web" and MySQL server on "db"; and we integrate the two servers. End result: a working instance of WordPress deployed across two servers.