openstack/operations-guide
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Address O'Reilly edits for chapter 3

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Anne Gentle 2014-02-13 16:32:00 -06:00
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doc/openstack-ops/ch_arch_cloud_controller.xml
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allows all services to be distributed widely. However, to simplify this
guide we have decided to discuss services of a more central nature using
the concept of a <emphasis>cloud controller</emphasis>. A cloud
controller is just a conceptual simplification, and in the real world
you likely will design an architecture for your cloud controller that
enables high availability so the cloud controller tasks are spread out
controller is just a conceptual simplification. In the real world
you design an architecture for your cloud controller that enables
high availability. In reality, the cloud controller tasks are spread out
across more than a single node. The cloud controller provides the
central management system for OpenStack deployments. Typically the cloud
controller manages authentication and sends messaging to all the systems
through a message queue.</para>
<para>For more details about an overall example architecture, see the <xref
linkend="example_architecture"/>.</para>
central management system for OpenStack deployments. Typically the
cloud controller manages authentication and sends messaging to all the
systems through a message queue.</para>
<tip><para>For a more detailed example architecture, see
<xref linkend="example_architecture"/>.</para></tip>
<para>For many deployments, the cloud controller is a single node, but for
high availability, you have considerations about the design to explore
further in this chapter. The concept of a cloud controller hosts these
further in this chapter. The cloud controller provides these
necessary management services for the cloud:</para>
<itemizedlist>
<listitem>