Add VNC support

Crude support for VNC - none of the settings can be customised but something
accessible to Virt manager is now available

Author: goetzk

tasks/main.yml

@@ -36,6 +36,7 @@
     interfaces: "{{ vm.interfaces | default([], true) }}"
     start: "{{ vm.start | default(true) }}"
     autostart: "{{ vm.autostart | default(true) }}"
+    enable_vnc: "{{ vm.enable_vnc | default(false) }}"
   with_items: "{{ libvirt_vms }}"
   loop_control:
     loop_var: vm

templates/vm.xml.j2

@@ -68,6 +68,16 @@
     <console type='pty'>
       <target type='serial' port='0'/>
     </console>
+{% endif %}
+{% if enable_vnc %}
+    <graphics type='vnc' port='5906' autoport='yes' listen='127.0.0.1'>
+      <listen type='address' address='127.0.0.1'/>
+    </graphics>
+    <video>
+      <model type='cirrus' vram='16384' heads='1' primary='yes'/>
+      <alias name='video0'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
+    </video>
 {% endif %}
   </devices>
 </domain>