There are a number of ways to automate an installation of OpenStack. These methods predominantly make use of configuration management tools such as Chef, Puppet, and Ansible. In this recipe, we will see how to use Ansible for the installation of OpenStack and how the Playbooks make use of LXC containers, in which isolate resources and filesystems to the service are running in the container. At the time of writing, the Ansible Playbooks that are used for installing OpenStack are hosted on Stackforge. These will soon move to the OpenStack GitHub branch as an official project.
The environment that we will be using in this recipe will consist of seven physical servers:
Three Controller nodes make up a cluster of nodes running the OpenStack API services, such as Glance, Keystone, and Horizon, as well as MariaDB and RabbitMQ.
One Storage node is used for Cinder LVM volumes.
Two (or more) nodes will be the Compute nodes...