06-install-vpn.tf

resource "random_string" "ipsec_psk" {
  length           = 20
  min_upper        = 2
  min_lower        = 2
  min_numeric      = 2
  min_special      = 2
  override_special = "$!?@*"
}

resource "random_string" "vpn_pass" {
  length           = 16
  min_upper        = 2
  min_lower        = 2
  min_numeric      = 2
  min_special      = 2
  override_special = "$!?@*"
}

data "template_file" "vpn_installer" {
  template = file("templates/l2tp_vpn.sh")
  vars = {
    ipsec_psk = random_string.ipsec_psk.result
    vpn_user  = var.vpn_user
    vpn_pass  = random_string.vpn_pass.result
  }
}

resource "null_resource" "install_vpn_server" {
  depends_on = [null_resource.download_vcenter_iso]
  connection {
    type        = "ssh"
    user        = "root"
    private_key = file("~/.ssh/${local.ssh_key_name}")
    host        = packet_device.router.access_public_ipv4
  }

  provisioner "file" {
    content     = data.template_file.vpn_installer.rendered
    destination = "/root/vpn_installer.sh"
  }

  provisioner "remote-exec" {
    inline = [
      "cd /root",
      "chmod +x /root/vpn_installer.sh",
      "/root/vpn_installer.sh"
    ]
  }
}