78 lines
2.8 KiB
ReStructuredText
78 lines
2.8 KiB
ReStructuredText
.. _environment:
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===========
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Environment
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===========
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This section explains how to configure the controller and one compute
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node using the example architecture.
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Although most environments include Identity, Image service, Compute, at least
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one networking service, and the dashboard, the Object Storage service can
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operate independently. If your use case only involves Object Storage, you can
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skip to :ref:`swift` after configuring the appropriate nodes for it. However,
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the dashboard requires at least the Image service, Compute, and Networking.
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You must use an account with administrative privileges to configure each node.
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Either run the commands as the ``root`` user or configure the ``sudo``
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utility.
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.. only:: obs
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The :command:`systemctl enable` call on openSUSE outputs a warning message
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when the service uses SysV Init scripts instead of native systemd files. This
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warning can be ignored.
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For best performance, we recommend that your environment meets or exceeds
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the hardware requirements in :ref:`figure-hwreqs`. However, OpenStack does
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not require a significant amount of resources and the following minimum
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requirements should support a proof-of-concept environment with core services
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and several :term:`CirrOS` instances:
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* Controller Node: 1 processor, 2 GB memory, and 5 GB storage
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* Compute Node: 1 processor, 2 GB memory, and 10 GB storage
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To minimize clutter and provide more resources for OpenStack, we recommend
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a minimal installation of your Linux distribution. Also, you must install a
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64-bit version of your distribution on each node.
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A single disk partition on each node works for most basic installations.
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However, you should consider :term:`Logical Volume Manager (LVM)` for
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installations with optional services such as Block Storage.
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For first-time installation and testing purposes, many users elect to build
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each host as a :term:`virtual machine (VM)`. The primary benefits of VMs
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include the following:
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* One physical server can support multiple nodes, each with almost any
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number of network interfaces.
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* Ability to take periodic "snap shots" throughout the installation
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process and "roll back" to a working configuration in the event of a
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problem.
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However, VMs will reduce performance of your instances, particularly if
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your hypervisor and/or processor lacks support for hardware acceleration
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of nested VMs.
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.. note::
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If you choose to install on VMs, make sure your hypervisor provides
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a way to disable MAC address filtering on the ``public`` network
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interface.
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For more information about system requirements, see the `OpenStack
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Operations Guide <http://docs.openstack.org/ops/>`_.
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.. toctree::
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:maxdepth: 1
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environment-security.rst
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environment-networking.rst
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environment-ntp.rst
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environment-packages.rst
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environment-sql-database.rst
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environment-nosql-database.rst
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environment-messaging.rst
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