vm/guest.xml.j2: add disk configuration

Update 'guest.xml.j2' template to include disk configuration for the virtual machine.

Signed-off-by: Benjamin Chedotel <[email protected]>

templates/vm/guest.xml.j2

@@ -84,7 +84,12 @@
         <suspend-to-disk enabled="no" />
     </pm>
     <devices>
-        <emulator>/usr/bin/qemu-system-x86_64</emulator>
+	<emulator>/usr/bin/qemu-system-x86_64</emulator>
+	<disk type="file" device="disk">
+		<driver name="qemu" type="qcow2"/>
+		<source file="/var/lib/libvirt/images/guest0.qcow2"/>
+		<target dev="vda" bus="virtio"/>
+	</disk>
         {% if "dpdk" in vm.vm_features %}
         {% for interface in vm.dpdk %}
         <interface type='vhostuser'>