Libvirt OpenTofu provider

dmacvicar/libvirt

• dmacvicar/libvirt provider
• Forks:
  • artur-borys
  • nv6
  • dalet-oss
  • geldata
  • edgedb
  • tiaden

OpenTofu setup

Install on laptop (for cloud-init disk):

sudo pacman -S cdrtools

Server setup

• Follow debian wiki:installation

Pool

• Create libvirt directory storage pool

lvcreate -L 60gb -n libvirt-pool ricote-vg
mkfs.ext4 -m 0 -L libvirt-pool /dev/ricote-vg/libvirt-pool
echo 'UUID=a64797fa-7a59-4e1e-93a6-c3920a9ac26b  /var/lib/libvirt/images/  ext4 errors=remount-ro 0 1' >> /etc/fstab
systemctl daemon-reload
mount -a

• LVM pool doesn't work:
  • lvm usage cases
  • Using a backingStore as baseimage and creating a bigger root LVM volume doesn't work, therefore sticking with directory storage pools for now. Related issues:
    • Support Volume Resizing from Base Volume
    • Unable to set disk size when deploying from cloud image

Cloud-init

• cloud-init modules

Issues

• Images are created with root user and I get access denied #978 Solution: Disable apparmor in /etc/ibvirt/qemu.conf
• Domain cannot get installed because of apparmor: See security/apparmor.md

Issues solved with v0.9:

• Beware, this version of the provider breaks compatibility
• LVM support
  • LVM storage pool implementation
  • Support cloudinit lvm layout
• can't find storage pool 'default' on remote libvirt host over SSH
• Changing some resources lead to their destruction and recreation
  • i.e. changing vcpus
  • libvirt_pool path => target.path migration (0.8.x) without destroying pool?
  • upgrading to 0.6.0 triggers change/replacement of all guests
  • Which domain attributes not require replacement?
  • libvirt_pool path => target.path migration (0.8.x) without destroying pool?

Other OpenTofu providers

• Outdated, but still interesting: camptocamp/terraform-libvirt-k3s Although k3os is dead