57 lines
2.5 KiB
ReStructuredText
57 lines
2.5 KiB
ReStructuredText
.. _app-aboutosa:
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=======================
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About OpenStack-Ansible
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=======================
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OpenStack-Ansible (OSA) uses the `Ansible <https://www.ansible.com/how-ansible-works>`_
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IT automation engine to deploy an OpenStack environment on Ubuntu, Debian
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and CentOS.
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For isolation and ease of maintenance, all OpenStack services are installed by
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default from source code into python virtual environments.
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The services are further isolated via the use of LXC containers, but these are
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optional and a bare metal based installation is also possible.
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The OpenStack-Ansible manifesto
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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All the design considerations (the container architecture, the ability to
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override any code, the network considerations, etc.) of this project are
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listed in our :dev_docs:`architecture reference <reference/architecture/index.html>`.
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Why choose OpenStack-Ansible?
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* Supports the major Linux distributions Ubuntu, CentOS, Debian.
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* Offers automation for upgrades between major OpenStack releases.
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* Uses OpenStack defaults for each of the project roles, and provides
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extra wiring and optimised configuration when combining projects
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together.
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* Does not implement its own DSL, and uses wherever possible Ansible
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directly. All the experience acquired using Ansible can be used in
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openstack-ansible, and the other way around.
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* You like to use reliable, proven technology. We try to run OpenStack
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with a minimum amount of packages that are not provided by distributions
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or the OpenStack community. Less dependencies and distribution tested
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software make the project more reliable.
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* You want to be able to select how to deploy on your hardware: deploy
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partially on metal, fully on metal, or fully in machine containers.
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When **not** to choose OpenStack-Ansible?
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* If your company is already invested with other configuration management
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systems, Puppet or Chef, and does not want to use Ansible we recommend
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re-using your knowledge and experimenting with a different
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OpenStack deployment project.
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* You want to deploy OpenStack with 100% application containers.
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We currently support LXC containers, if you want to go 100% Docker,
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there are other projects in the OpenStack community that can
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help you.
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* You want to deploy OpenStack services from distribution packages
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(deb or rpm). Whilst there is some support for this, coverage of the
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services is incomplete and a lot of operator flexibility is lost
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when using this approach.
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