terraform {
  required_providers {
    libvirt = {
      source  = "dmacvicar/libvirt"
      version = "~> 0.7.0"
    }
  }
}

provider "libvirt" {
  uri = "qemu:///system"
}



variable "prefix" {
  default = "libvirt_getting_started"
}


# see https://github.com/dmacvicar/terraform-provider-libvirt/blob/v0.6.14/website/docs/r/network.markdown
resource "libvirt_network" "libvirt_getting_started" {
  name      = var.prefix
  mode      = "nat"
  domain    = "libvirt_getting_started.test"
  addresses = ["10.17.3.0/24"]
  dhcp {
    enabled = false
  }
  dns {
    enabled    = true
    local_only = false
  }
}

resource "libvirt_pool" "debian" {
  name = "debian-getting-started"
  type = "dir"
  path = "/var/lib/libvirt/images/terraform-provider-libvirt-pool-debian"
}

# We fetch the latest debian release image from their mirrors
resource "libvirt_volume" "debian-qcow2" {
  name   = "debian-qcow2"
  pool   = libvirt_pool.debian.name
  source = "https://cloud.debian.org/images/cloud/buster/latest/debian-10-genericcloud-amd64.qcow2"
  format = "qcow2"
}

data "template_file" "user_data" {
  template = file("${path.module}/cloud_init.cfg")
}

data "template_file" "network_config" {
  template = file("${path.module}/network_config.cfg")
}

# for more info about paramater check this out
# https://github.com/dmacvicar/terraform-provider-libvirt/blob/master/website/docs/r/cloudinit.html.markdown
# Use CloudInit to add our ssh-key to the instance
# you can add also meta_data field
resource "libvirt_cloudinit_disk" "commoninit" {
  name           = "commoninit.iso"
  user_data      = data.template_file.user_data.rendered
  network_config = data.template_file.network_config.rendered
  pool           = libvirt_pool.debian.name
}




resource "libvirt_domain" "libvirt_getting_started" {
  name   = "debian-terraform"
  memory = "512"
  vcpu   = 1

  cloudinit = libvirt_cloudinit_disk.commoninit.id
  

  network_interface {
    network_id     = libvirt_network.libvirt_getting_started.id
    wait_for_lease = true
    addresses      = ["10.17.3.2"]
  }

#  # IMPORTANT: this is a known bug on cloud images, since they expect a console
#  # we need to pass it
#  # https://bugs.launchpad.net/cloud-images/+bug/1573095
  console {
    type        = "pty"
    target_port = "0"
    target_type = "serial"
  }

  console {
    type        = "pty"
    target_type = "virtio"
    target_port = "1"
  }





 connection {
   type        = "ssh"
   user        = "root"
   host        = self.network_interface[0].addresses[0] # see https://github.com/dmacvicar/terraform-provider-libvirt/issues/660
   public_key = file("~/.ssh/aravinth.pub")
 }

  disk {
    volume_id = libvirt_volume.debian-qcow2.id
  }

  graphics {
    type        = "vnc"
    listen_type = "address"

  }


  boot_device {
    dev = ["hd", "network"]
  }



  network_interface {
    network_id     = libvirt_network.libvirt_getting_started.id
    wait_for_lease = true
    addresses      = ["10.17.3.2"]
  }
}

output "ip" {
  value = length(libvirt_domain.libvirt_getting_started.network_interface[0].addresses) > 0 ? libvirt_domain.libvirt_getting_started.network_interface[0].addresses[0] : ""
}