mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-08-28 19:41:16 +00:00
The correct attribute name is 'format', not 'type'. https://bugzilla.redhat.com/show_bug.cgi?id=1139910
68 lines
3.0 KiB
XML
68 lines
3.0 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<body>
|
|
<h1>Storage volume encryption XML format</h1>
|
|
|
|
<ul id="toc"></ul>
|
|
|
|
<h2><a name="StorageEncryption">Storage volume encryption XML</a></h2>
|
|
|
|
<p>
|
|
Storage volumes may be encrypted, the XML snippet described below is used
|
|
to represent the details of the encryption. It can be used as a part
|
|
of a domain or storage configuration.
|
|
</p>
|
|
<p>
|
|
The top-level tag of volume encryption specification
|
|
is <code>encryption</code>, with a mandatory
|
|
attribute <code>format</code>. Currently defined values
|
|
of <code>format</code> are <code>default</code> and <code>qcow</code>.
|
|
Each value of <code>format</code> implies some expectations about the
|
|
content of the <code>encryption</code> tag. Other format values may be
|
|
defined in the future.
|
|
</p>
|
|
<p>
|
|
The <code>encryption</code> tag can currently contain a sequence of
|
|
<code>secret</code> tags, each with mandatory attributes <code>type</code>
|
|
and <code>uuid</code>. The only currently defined value of
|
|
<code>type</code> is <code>passphrase</code>. <code>uuid</code>
|
|
refers to a secret known to libvirt. libvirt can use a secret value
|
|
previously set using <code>virSecretSetValue()</code>, or, if supported
|
|
by the particular volume format and driver, automatically generate a
|
|
secret value at the time of volume creation, and store it using the
|
|
specified <code>uuid</code>.
|
|
</p>
|
|
<h3><a name="StorageEncryptionDefault">"default" format</a></h3>
|
|
<p>
|
|
<code><encryption format="default"/></code> can be specified only
|
|
when creating a volume. If the volume is successfully created, the
|
|
encryption formats, parameters and secrets will be auto-generated by
|
|
libvirt and the attached <code>encryption</code> tag will be updated.
|
|
The unmodified contents of the <code>encryption</code> tag can be used
|
|
in later operations with the volume, or when setting up a domain that
|
|
uses the volume.
|
|
</p>
|
|
<h3><a name="StorageEncryptionQcow">"qcow" format</a></h3>
|
|
<p>
|
|
The <code>qcow</code> format specifies that the built-in encryption
|
|
support in <code>qcow</code>- or <code>qcow2</code>-formatted volume
|
|
images should be used. A single
|
|
<code><secret type='passphrase'></code> element is expected. If
|
|
the <code>secret</code> element is not present during volume creation,
|
|
a secret is automatically generated and attached to the volume.
|
|
</p>
|
|
|
|
<h2><a name="example">Example</a></h2>
|
|
|
|
<p>
|
|
Here is a simple example, specifying use of the <code>qcow</code> format:
|
|
</p>
|
|
|
|
<pre>
|
|
<encryption format='qcow'>
|
|
<secret type='passphrase' uuid='c1f11a6d-8c5d-4a3e-ac7a-4e171c5e0d4a' />
|
|
</encryption></pre>
|
|
</body>
|
|
</html>
|