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Home OpenStack-Ansible Installation Guide
About OpenStack-Ansible
OpenStack-Ansible (OSA) uses the Ansible IT automation engine to deploy an OpenStack environment on Ubuntu Linux. OpenStack components may be installed into Linux Containers (LXC) for isolation and ease of maintenance.
This documentation is intended for deployers, and walks through an OpenStack-Ansible installation for a test environment, and a production environment.
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Ansible
Ansible provides an automation platform to simplify system and application deployment. Ansible manages systems using Secure Shell (SSH) instead of unique protocols that require remote daemons or agents.
Ansible uses playbooks written in the YAML language for orchestration. For more information, see Ansible - Intro to Playbooks.
In this guide, we refer to the host running Ansible playbooks as the deployment host and the hosts on which Ansible installs OpenStack services and infrastructure components as the target hosts.
Linux Containers (LXC)
Containers provide operating-system level virtualization by enhancing
the concept of chroot environments, which isolate resources
and file systems for a particular group of processes without the
overhead and complexity of virtual machines. They access the same
kernel, devices, and file systems on the underlying host and provide a
thin operational layer built around a set of rules.
The Linux Containers (LXC) project implements operating system level virtualization on Linux using kernel namespaces and includes the following features:
- Resource isolation including CPU, memory, block I/O, and network
using
cgroups. - Selective connectivity to physical and virtual network devices on the underlying physical host.
- Support for a variety of backing stores including LVM.
- Built on a foundation of stable Linux technologies with an active development and support community.