a2d662d600
The XML root element of Docbook XML files should match the following format: <ELEMENT xmlns="http://docbook.org/ns/docbook" xmlns:xi="http://www.w3.org/2001/XInclude" xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0" xml:id="THE_XML_ID_OF_THE_ELEMENT"> Change-Id: I1e0804e2c5021bd78b77483f3156c5b069453555
32 lines
1.6 KiB
XML
32 lines
1.6 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<chapter xmlns="http://docbook.org/ns/docbook"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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version="5.0"
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xml:id="ch_glance">
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<title>Add the Image Service</title>
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<para>The OpenStack Image Service (glance) enables users to discover,
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register, and retrieve virtual machine images. It offers a <glossterm
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baseform="RESTful">REST</glossterm> API that enables you to
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query virtual machine image metadata and retrieve an actual image.
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You can store virtual machine images made available through the
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Image Service in a variety of locations, from simple file systems
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to object-storage systems like OpenStack Object Storage.</para>
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<important>
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<para>For simplicity, this guide describes configuring the Image Service to
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use the <literal>file</literal> back end, which uploads and stores in a
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directory on the controller node hosting the Image Service. By
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default, this directory is <filename>/var/lib/glance/images/</filename>.
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</para>
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<para>Before you proceed, ensure that the controller node has at least
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several gigabytes of space available in this directory.</para>
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<para>For information on requirements for other back ends, see <link
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xlink:href="http://docs.openstack.org/trunk/config-reference/content/ch_configuring-openstack-image-service.html"
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><citetitle>Configuration
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Reference</citetitle></link>.</para>
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</important>
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<xi:include href="../common/section_getstart_image.xml"/>
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<xi:include href="section_glance-install.xml"/>
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<xi:include href="section_glance-verify.xml"/>
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</chapter>
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