$ wget https://releases.hashicorp.com/terraform/1.3.2/terraform_1.3.2_linux_amd64.zip
$ sudo unzip terraform_1.3.2_linux_amd64.zip -d /usr/local/bin/

$ mkdir ~/.terraform.d/plugins && cd ~/.terraform.d/plugins
$ wget https://github.com/dmacvicar/terraform-provider-libvirt/releases/download/v0.6.14/terraform-provider-libvirt_0.6.14_linux_amd64.zip
$ unzip terraform-provider-libvirt_0.6.14_linux_amd64.zip
$ rm terraform-provider-libvirt_0.6.14_linux_amd64.zip

$ mkdir ~/monprojet && cd ~/monprojet
$ terraform init

$ terraform init

Exemplos

main.tf

$ cat main.tf
terraform {
  required_providers {
    libvirt = {
      source  = "dmacvicar/libvirt"
    }
  }
}
 
provider "libvirt" {
  uri = "qemu:///system"
}
 
resource "libvirt_volume" "os_image_ubuntu" {
  name   = "os_image_ubuntu"
  pool   = "default"
  source = "./bionic-server-cloudimg-amd64.img"
  format = "qcow2"
}
 
resource "libvirt_volume" "disk_ubuntu_resized" {
  name           = "disk"
  base_volume_id = libvirt_volume.os_image_ubuntu.id
  pool           = "default"
  size           = 34359738368 # 1073741824*32 ou 1024*1024*1024*32
}
 
data "template_file" "user_data" {
  template = file("${path.module}/cloud_init.cfg")
}
 
# Use CloudInit to add our ssh-key to the instance
resource "libvirt_cloudinit_disk" "cloudinit_ubuntu_resized" {
  name = "cloudinit_ubuntu_resized.iso"
  user_data = data.template_file.user_data.rendered
  pool = "default"
}
 
resource "libvirt_domain" "ubuntu-terraform" {
  name = "ubuntu-terraform"
  memory = "2048"
  vcpu = 2
 
  cpu {
    mode = "host-passthrough"
  }
 
  cloudinit = libvirt_cloudinit_disk.cloudinit_ubuntu_resized.id
 
  network_interface {
    network_name = "default"
    wait_for_lease = true
  }
 
  console {
    type = "pty"
    target_port = "0"
    target_type = "serial"
  }
 
  console {
    type = "pty"
    target_type = "virtio"
    target_port = "1"
  }
 
  disk {
    volume_id = libvirt_volume.disk_ubuntu_resized.id
  }
 
  graphics {
    type = "spice"
    listen_type = "address"
    autoport = true
  }
}
 
output "ip" {
  value = libvirt_domain.ubuntu-terraform.network_interface[0].addresses[0]
}

$ mkpasswd --method=SHA-512
Password:
$6$R4tXC5apTx$f4WVAylB/SZ/0ppE7Zp4lurvzAhcm.BaU3xJKaoESu7cv13sR7RYVkjVQwxtvA9/vUggWu/a9N0L9EP1lg/Ez1

cloud_init.cfg

$ cat cloud_init.cfg
#cloud-config
users:
  - name: suporte
    gecos: "Suporte JuntoTelecom"
    sudo: ALL=(ALL) NOPASSWD:ALL
    home: /home/suporte
    shell: /bin/bash
    lock_passwd: false
    ssh-authorized-keys:
      - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDNYC9NDiLb8IZK/v3PeMsgT40o4QLpGzKaz36C4S8JAt/HmzaDDyR6PiGNkHOiMWKtowwIwpdhlV7zpjxBOf8AAq4OhfYfkidKnvGo5M6DRjcxkhPjgsfICAApks4JTa+ATLXaZhEJ2DV8olrD6gxCUYwqTMtLNdgprg3i9wllOWGzM9ygGodXo4JpZI4YvgpbCgmNP+eYwpJzxcdMU6SRTrtdMN0fcmxUDSHp/EhYUWWREF6WCjIP7AUGIP9MILx3M4emfR5FOOJIBeSJRmu1I/xjnSO8f5oFQd514v06Uw6k5UrIhbCkWsHbO4nZLQb3Gx3asxyrYCgeI9tusSiB suporte@mba-vm-03
ssh_pwauth: true
chpasswd:
  list: |
     suporte: $6$R4tXC5apTx$f4WVAylB/SZ/0ppE7Zp4lurvzAhcm.BaU3xJKaoESu7cv13sR7RYVkjVQwxtvA9/vUggWu/a9N0L9EP1lg/Ez1
  expire: False

main.tf

$ cat main.tf
terraform {
  required_providers {
    libvirt = {
      source = "dmacvicar/libvirt"
    }
  }
}
 
provider "libvirt" {
  uri = "qemu:///system"
  #alias = "server2"
  #uri   = "qemu+ssh://root@192.168.100.10/system"
}

providers.tf

$ cat providers.tf
resource "libvirt_volume" "os_image_ubuntu" {
  name = "os_image_ubuntu"
  pool = "default"
  #source = "https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img"
  source = "./bionic-server-cloudimg-amd64.img"
  format = "qcow2"
}
 
resource "libvirt_volume" "volume" {
  name           = "volume-${count.index}"
  base_volume_id = libvirt_volume.os_image_ubuntu.id
  pool           = "default"
  size           = 34359738368
  count          = 2
}
 
data "template_file" "user_data" {
  template = file("${path.module}/cloud_init.cfg")
}
 
resource "libvirt_cloudinit_disk" "cloudinit_ubuntu_resized" {
  name      = "cloudinit_ubuntu_resized.iso"
  user_data = data.template_file.user_data.rendered
  pool      = "default"
}
 
resource "libvirt_domain" "ubuntu" {
  name   = "ubuntu-${count.index}"
  memory = "2048"
  vcpu   = 2
 
  cpu {
    mode = "host-passthrough"
  }
 
  cloudinit = libvirt_cloudinit_disk.cloudinit_ubuntu_resized.id
 
  network_interface {
    network_name   = "default"
    wait_for_lease = true
  }
 
  count = 2
 
  console {
    type        = "pty"
    target_port = "0"
    target_type = "serial"
  }
 
  console {
    type        = "pty"
    target_type = "virtio"
    target_port = "1"
  }
 
  disk {
    volume_id = element(libvirt_volume.volume.*.id, count.index)
  }
 
  graphics {
    type        = "spice"
    listen_type = "address"
    autoport    = true
  }
}
 
output "ip" {
  value = libvirt_domain.ubuntu.*.network_interface.0.addresses
}

cloud_init.cfg

$ cat cloud_init.cfg
#cloud-config
users:
  - name: suporte
    gecos: "Suporte JuntoTelecom"
    sudo: ALL=(ALL) NOPASSWD:ALL
    home: /home/suporte
    shell: /bin/bash
    lock_passwd: false
    ssh-authorized-keys:
      - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDNYC9NDiLb8IZK/v3PeMsgT40o4QLpGzKaz36C4S8JAt/HmzaDDyR6PiGNkHOiMWKtowwIwpdhlV7zpjxBOf8AAq4OhfYfkidKnvGo5M6DRjcxkhPjgsfICAApks4JTa+ATLXaZhEJ2DV8olrD6gxCUYwqTMtLNdgprg3i9wllOWGzM9ygGodXo4JpZI4YvgpbCgmNP+eYwpJzxcdMU6SRTrtdMN0fcmxUDSHp/EhYUWWREF6WCjIP7AUGIP9MILx3M4emfR5FOOJIBeSJRmu1I/xjnSO8f5oFQd514v06Uw6k5UrIhbCkWsHbO4nZLQb3Gx3asxyrYCgeI9tusSiB suporte@mba-vm-03
ssh_pwauth: true
chpasswd:
  list: |
     suporte: $6$R4tXC5apTx$f4WVAylB/SZ/0ppE7Zp4lurvzAhcm.BaU3xJKaoESu7cv13sR7RYVkjVQwxtvA9/vUggWu/a9N0L9EP1lg/Ez1
  expire: False

1. Cloud config examples
2. Libvirt Provider
3. How To Provision VMs on KVM with Terraform
4. Ubuntu Cloud Images
5. Debian Official Cloud Images
6. CentOS Cloud images
7. Gigabytes em Bytes
8. Terraform provider for libvirt