variable "hcloud_token" {
  type = string
}

provider "hcloud" {
  token = var.hcloud_token
}

data "hcloud_ssh_key" "vojtechmares" {
  name = "iam@vojtechmares.com"
}

resource "hcloud_ssh_key" "ssh_key" {
  name = "ssh-key"
  public_key = var.ssh_public_key
}

data "ct_config" "ignition" {
  content = file("templates/config.yaml")
  strict       = true
  pretty_print = true
}

resource "hcloud_server" "server" {
  name        = "flatcar-linux--test"
  server_type = "cx11"

  labels = {
    "os" = "flatcar-linux"
  }

  location = "nbg1"

  // Unused because of rescue mode, but required field
  image    = "debian-11"
  rescue   = "linux64"
  ssh_keys = [data.hcloud_ssh_key.vojtechmares.id]

  connection {
    host    = hcloud_server.test.ipv4_address
    timeout = "5m"
    user    = "root"
  }

  provisioner "file" {
    content     = data.ct_config.ignition.rendered
    destination = "/root/ignition.json"
  }

  provisioner "remote-exec" {
    inline = [
      "set -ex",
      "apt update -y",
      "apt install -y gawk",
      "curl -fsSLO --retry-delay 1 --retry 60 --retry-connrefused --retry-max-time 60 --connect-timeout 20 https://raw.githubusercontent.com/kinvolk/init/flatcar-master/bin/flatcar-install",
      "chmod +x flatcar-install",
      "./flatcar-install -s -i /root/ignition.json",
      "shutdown -r +1",
    ]
  }

  # Configure after installation
  provisioner "remote-exec" {
    connection {
      host    = self.ipv4_address
      timeout = "3m"
      user    = "core"
    }

    inline = [
      "sudo hostnamectl set-hostname ${self.name}",
    ]
  }

}

output "ip" {
  value = hcloud_server.server.ipv4_address
}