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94 lines
3.4 KiB
XML
94 lines
3.4 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<body>
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<h1>Secret XML format</h1>
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<ul id="toc"></ul>
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<h2><a name="SecretAttributes">Secret XML</a></h2>
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<p>
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Secrets stored by libvirt may have attributes associated with them, using
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the <code>secret</code> element. The <code>secret</code> element has two
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optional attributes, each with values '<code>yes</code>' and
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'<code>no</code>', and defaulting to '<code>no</code>':
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</p>
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<dl>
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<dt><code>ephemeral</code></dt>
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<dd>This secret must only be kept in memory, never stored persistently.
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</dd>
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<dt><code>private</code></dt>
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<dd>The value of the secret must not be revealed to any caller of libvirt,
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nor to any other node.
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</dd>
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</dl>
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<p>
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The top-level <code>secret</code> element may contain the following
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elements:
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</p>
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<dl>
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<dt><code>uuid</code></dt>
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<dd>
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An unique identifier for this secret (not necessarily in the UUID
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format). If omitted when defining a new secret, a random UUID is
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generated.
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</dd>
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<dt><code>description</code></dt>
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<dd>A human-readable description of the purpose of the secret.
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</dd>
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<dt><code>usage</code></dt>
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<dd>
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Specifies what this secret is used for. A mandatory
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<code>type</code> attribute specifies the usage category, currently
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only <code>volume</code>, <code>ceph</code> and <code>iscsi</code>
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are defined. Specific usage categories are described below.
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</dd>
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</dl>
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<h3>Usage type "volume"</h3>
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<p>
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This secret is associated with a volume, and it is safe to delete the
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secret after the volume is deleted. The <code><usage
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type='volume'></code> element must contain a
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single <code>volume</code> element that specifies the key of the volume
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this secret is associated with.
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</p>
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<h3>Usage type "ceph"</h3>
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<p>
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This secret is associated with a Ceph RBD (rados block device).
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The <code><usage type='ceph'></code> element must contain
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a single <code>name</code> element that specifies a usage name
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for the secret. The Ceph secret can then be used by UUID or by
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this usage name via the <code><auth></code> element of
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a <a href="formatdomain.html#elementsDisks">disk
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device</a>. <span class="since">Since 0.9.7</span>.
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</p>
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<h3>Usage type "iscsi"</h3>
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<p>
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This secret is associated with an iSCSI target for CHAP authentication.
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The <code><usage type='iscsi'></code> element must contain
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a single <code>target</code> element that specifies a usage name
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for the secret. The iSCSI secret can then be used by UUID or by
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this usage name via the <code><auth></code> element of
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a <a href="formatdomain.html#elementsDisks">disk
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device</a>. <span class="since">Since 1.0.4</span>.
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</p>
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<h2><a name="example">Example</a></h2>
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<pre>
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<secret ephemeral='no' private='yes'>
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<description>LUKS passphrase for the main hard drive of our mail server</description>
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<usage type='volume'>
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<volume>/var/lib/libvirt/images/mail.img</volume>
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</usage>
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</secret></pre>
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</body>
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</html>
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