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path: root/roles/vm/define/templates/libvirt-domain.xml.j2
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<domain type='kvm'>
  <name>{{ hostname }}</name>
  <memory>{{ hostvars[hostname].install_cooked.mem * 1024 }}</memory>
  <currentMemory>{{ hostvars[hostname].install_cooked.mem * 1024 }}</currentMemory>
  <vcpu>{{ hostvars[hostname].install_cooked.numcpu }}</vcpu>
  <os>
    <type arch='x86_64' machine='pc-0.12'>hvm</type>
{% if vm_define_installer %}
    <kernel>{{ debian_installer_path }}/{{ install_distro }}-{{ install_codename }}/{{ hostvars[hostname].install_cooked.arch | default('amd64') }}/linux</kernel>
    <initrd>{{ preseed_tmpdir }}/initrd.preseed.gz</initrd>
    <cmdline>console=ttyS0,115200n8</cmdline>
{% endif %}
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
{% if vm_define_installer %}
  <on_reboot>destroy</on_reboot>
  <on_crash>destroy</on_crash>
{% else %}
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
{% endif %}
  <devices>
    <emulator>/usr/bin/kvm</emulator>
    <!-- Provide a virtualized RNG to the guest -->
    <rng model='virtio'>
      <!-- Allow consuming up to 10kb/s, measured over 2s -->
      <rate period="2000" bytes="20480"/>
      <backend model='random'>/dev/random</backend>
    </rng>

{% if 'virtio' in hostvars[hostname].install_cooked.disks %}
{%   for device, src in hostvars[hostname].install_cooked.disks.virtio.items() %}
    <disk type='block' device='disk'>
      <driver name='qemu' type='raw' cache='none' discard='unmap'/>
{%     if src.type == 'lvm' %}
      <source dev='/dev/mapper/{{ src.vg | replace('-', '--') }}-{{ src.lv | replace('-', '--') }}'/>
{%     elif src.type == 'zfs' %}
      <source dev='/dev/zvol/{{ src.pool }}/{{ src.name }}'/>
{%     endif %}
      <target dev='{{ device }}' bus='virtio'/>
    </disk>
{%   endfor %}
{% endif %}

{% if 'scsi' in hostvars[hostname].install_cooked.disks %}
    <controller type='scsi' index='0' model='virtio-scsi'/>
{%   for device, src in hostvars[hostname].install_cooked.disks.scsi.items() %}
    <disk type='block' device='disk'>
      <driver name='qemu' type='raw' cache='none' discard='unmap'/>
{%     if src.type == 'lvm' %}
      <source dev='/dev/mapper/{{ src.vg | replace('-', '--') }}-{{ src.lv | replace('-', '--') }}'/>
{%     elif src.type == 'zfs' %}
      <source dev='/dev/zvol/{{ src.pool }}/{{ src.name }}'/>
{%     endif %}
      <target dev='{{ device }}' bus='scsi'/>
    </disk>
{%   endfor %}
{% endif %}

{% if hostvars[hostname].install_cooked.interfaces %}
{%   for if in hostvars[hostname].install_cooked.interfaces %}
    <interface type='bridge'>
      <source bridge='{{ if.bridge }}'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x0{{ loop.index }}' function='0x0'/>
    </interface>
{%   endfor %}
{% endif %}

    <serial type='pty'>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
  </devices>
</domain>