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29bc4fe646
This patch brings support to manage sheepdog pools and volumes to libvirt.
It uses the "collie" command-line utility that comes with sheepdog for that.
A sheepdog pool in libvirt maps to a sheepdog cluster.
It needs a host and port to connect to, which in most cases
is just going to be the default of localhost on port 7000.
A sheepdog volume in libvirt maps to a sheepdog vdi.
To create one specify the pool, a name and the capacity.
Volumes can also be resized later.
In the volume XML the vdi name has to be put into the <target><path>.
To use the volume as a disk source for virtual machines specify
the vdi name as "name" attribute of the <source>.
The host and port information from the pool are specified inside the host tag.
<disk type='network'>
...
<source protocol="sheepdog" name="vdi_name">
<host name="localhost" port="7000"/>
</source>
</disk>
To work right this patch parses the output of collie,
so it relies on the raw output option. There recently was a bug which caused
size information to be reported wrong. This is fixed upstream already and
will be in the next release.
Signed-off-by: Sebastian Wiedenroth <wiedi@frubar.net>
18 lines
375 B
XML
18 lines
375 B
XML
<volume>
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<name>test2</name>
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<key>(null)</key>
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<source>
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</source>
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<capacity unit='bytes'>1024</capacity>
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<allocation unit='bytes'>0</allocation>
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<target>
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<path>sheepdog:test2</path>
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<format type='unknown'/>
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<permissions>
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<mode>0600</mode>
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<owner>4294967295</owner>
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<group>4294967295</group>
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</permissions>
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</target>
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</volume>
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