834168dd79
Offers a redirect from an old URL that glance docs refer to. Removes files that are not used. Renames some files, creates a section for inclusion. Change-Id: Ic6d4a47ec18a71f359d0eb37cd3e71954e9825b8 Closes-bug: 1244666
102 lines
4.2 KiB
XML
102 lines
4.2 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<section 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" version="5.0"
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xml:id="image-formats">
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<title>Disk and Container Formats for Images</title>
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<?dbhtml stop-chunking?>
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<para>When you add an image to the Image Service, you can specify
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its disk and container formats.</para>
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<section xml:id="disk-format">
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<title>Disk Formats</title>
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<para>The disk format of a virtual machine image is the format
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of the underlying disk image. Virtual appliance vendors
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have different formats for laying out the information
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contained in a virtual machine disk image.</para>
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<para>Set the disk format for your image to one of the
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following values:</para>
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<itemizedlist>
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<listitem>
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<para><literal>raw</literal>. An unstructured disk
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image format; if you have a file without an
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extension it is possibly a raw format</para>
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</listitem>
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<listitem>
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<para><literal>vhd</literal>. The VHD disk format, a
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common disk format used by virtual machine
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monitors from VMWare, Xen, Microsoft, VirtualBox,
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and others</para>
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</listitem>
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<listitem>
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<para><literal>vmdk</literal>. Common disk format
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supported by many common virtual machine
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monitors</para>
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</listitem>
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<listitem>
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<para><literal>vdi</literal>. Supported by VirtualBox
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virtual machine monitor and the QEMU
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emulator</para>
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</listitem>
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<listitem>
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<para><literal>iso</literal>. An archive format for
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the data contents of an optical disc, such as
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CD-ROM.</para>
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</listitem>
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<listitem>
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<para><literal>qcow2</literal>. Supported by the QEMU
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emulator that can expand dynamically and supports
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Copy on Write</para>
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</listitem>
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<listitem>
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<para><literal>aki</literal>. An Amazon kernel
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image.</para>
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</listitem>
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<listitem>
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<para><literal>ari</literal>. An Amazon ramdisk
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image.</para>
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</listitem>
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<listitem>
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<para><literal>ami</literal>. An Amazon machine
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image.</para>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="container-format">
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<title>Container Formats</title>
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<para>The container format indicates whether the virtual
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machine image is in a file format that also contains
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metadata about the actual virtual machine.</para>
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<note>
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<para>The Image Service and other OpenStack projects do
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not currently support the container format. It is safe
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to specify <literal>bare</literal> as the container
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format if you are unsure.</para>
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</note>
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<para>You can set the container format for your image to one
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of the following values:</para>
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<itemizedlist>
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<listitem>
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<para><literal>bare</literal>. The image does not have
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a container or metadata envelope.</para>
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</listitem>
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<listitem>
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<para><literal>ovf</literal>. The OVF container
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format.</para>
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</listitem>
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<listitem>
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<para><literal>aki</literal>. An Amazon kernel image.
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</para>
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</listitem>
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<listitem>
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<para><literal>ari</literal>. An Amazon ramdisk
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image.</para>
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</listitem>
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<listitem>
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<para><literal>ami</literal>. An Amazon machine
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image.</para>
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</listitem>
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</itemizedlist>
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</section>
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</section>
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