playbooks/roles/create-libvirt-vms/templates/libvirt-vm.xml.j2

<domain type='kvm'>
  <name>{{ hostname }}</name>
  <memory unit='GiB'>{{ node.node.memory | regex_replace("G$", "") }}</memory>
  <currentMemory unit='GiB'>{{ node.node.memory | regex_replace("G$", "") }}</currentMemory>
  <vcpu placement='static'>{{ node.node.cores }}</vcpu>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='x86_64' machine='pc-i440fx-2.5'>hvm</type>
    <boot dev='network'/>
    <boot dev='hd'/>
    <bootmenu enable='no'/>
    <bios useserial='yes' rebootTimeout='10000'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <cpu mode='{{ node.node.cpu_cflags }}'>
    <model fallback='allow'/>
  </cpu>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-x86_64</emulator>
    {% for disk in disks %}
      <disk type='file' device='disk'>
        <driver name='qemu' type='qcow2' cache='unsafe'/>
        <source file='{{ vm_vol_path_prefix }}-{{ disk.name }}.qcow2'/>
        <backingStore/>
        <target dev='{{ disk.dev }}' bus='virtio'/>
        <alias name='virtio-disk0'/>
      </disk>
    {% endfor %}
    <controller type='ide' index='0'>
      <alias name='ide'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='usb' index='0'>
      <alias name='usb'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
{%- for net_key, net_name in networks.network_mapping.iteritems() -%}
    <interface type='network'>
      <source network='{{ net_name }}' bridge='br_{{ net_name }}'/>
      <mac address='{{ node.interfaces[idf.net_config[net_name].interface].mac_address }}'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0{{idf.net_config[net_name].interface + 3 }}' function='0x0'/>
    </interface>
{%- endfor -%}
    <serial type='file'>
      <source path='{{ vm_console_log_path }}/{{ hostname }}_console.log'/>
      <target port='1'/>
      <alias name='serial0'/>
    </serial>
    <console type='file'>
      <source path='{{ vm_console_log_path }}/{{ hostname }}_console.log'/>
      <target type='serial' port='1'/>
      <alias name='serial0'/>
    </console>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='5902' autoport='yes' listen='127.0.0.1'>
      <listen type='address' address='127.0.0.1'/>
    </graphics>
    <video>
      <model type='cirrus' vram='16384' heads='1'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
    </memballoon>
  </devices>
  <seclabel type='dynamic' model='apparmor' relabel='yes'>
  </seclabel>
</domain>