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schema: add ssh-agent configuration for ssh disks

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Add the ability to specify a path to a ssh-agent socket in order to use
the ssh-agent to authenticate to remote ssh disks. Example
configuration:

    <disk type='network'>
        </source protocol='ssh' ...>
            <identity username='myusername' agentsock='/path/to/socket'/>
            ...
        </source>
        ...
    </disk>

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Jonathon Jongsma 2023-07-14 15:14:25 -05:00
parent 68599168ea
commit 1195403c43
2 changed files with 16 additions and 8 deletions
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13
docs/formatdomain.rst
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@ -3022,11 +3022,14 @@ paravirtualized driver is specified via the ``disk`` element.
are intended to be default, then the entire element may be omitted.
When using an ``ssh`` protocol, this element is used to enable
authentication via ssh keys. In this configuration, the element has two
attributes. The ``username`` attribute specifies the name of the user on
the remote server and the ``keyfile`` attribute specifies the path to the
keyfile. Note that this only works for ssh keys that are not
password-protected.
authentication via ssh keys. In this configuration, the element has three
possible attributes. The ``username`` attribute is required and specifies
the name of the user on the remote server. ssh keys can be specified in
one of two ways. The first way is by adding them to an ssh-agent and
providing the path to the ssh-agent socket in the ``agentsock``
attribute. This method works for ssh keys with or without password
protection. Alternatively, for ssh keys without a password, the ssh key
can be specified directly by setting the ``keyfile`` attribute.
``reconnect``
For disk type ``vhostuser`` configures reconnect timeout if the connection
is lost. This is set with the two mandatory attributes ``enabled`` and

11
src/conf/schemas/domaincommon.rng
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@ -2187,9 +2187,14 @@
<attribute name="username">
<ref name="genericName"/>
</attribute>
<attribute name="keyfile">
<ref name="absFilePath"/>
</attribute>
<choice>
<attribute name="keyfile">
<ref name="absFilePath"/>
</attribute>
<attribute name="agentsock">
<ref name="absFilePath"/>
</attribute>
</choice>
</interleave>
</element>
</define>