Simple example of how to use Terraform with libvirt
Blog post: https://jmorano.moretrix.com/2022/03/terraform-and-libvirtd-nodes/
The base OS used for the hypervisor in this example was Ubuntu Linux 20.4-LTS
apt install qemu-kvm libvirt-daemon bridge-utils virtinst libvirt-daemon-system virt-top libguestfs-tools libosinfo-bin qemu-system virt-manager qemu pm-utilsecho vhost_net | tee -a /etc/modulescd deployment/
terraform init --upgrade
terraform plan -out myplan
terraform apply "myplan"On the hypervisor
# enable IP forwarding in /etc/sysctl.conf
net.ipv4.ip_forward = 1
sysctl -a
# allow ssh access to virtual machines from openvpn networks only
iptables -I LIBVIRT_FWI -p tcp -i tun0 -o virbr1 -s 0.0.0.0/0 -d 10.1.2.0/24 --dport 22 -m state --state NEW -j ACCEPT