terraform {
  required_version = ">= 0.12"
}

variable "do_token" {}

variable "ssh_key_file" {
  default     = "~/.ssh/id_rsa.pub"
  description = "Path to the SSH public key file"
}

provider "digitalocean" {
  token = var.do_token	
}

resource "random_password" "password" {
  length = 16
  special = true
  override_special = "_-#"
}

data "local_file" "ssh_key"{
  filename = pathexpand(var.ssh_key_file)
}

data "template_file" "cloud_init" {
  template = "${file("cloud-config.tpl")}"
    vars = {
      gw_password=random_password.password.result,
      ssh_key=data.local_file.ssh_key.content,
    }
}

resource "digitalocean_droplet" "faasd" {

  region = "lon1"
  image  = "ubuntu-18-04-x64"
  name   = "faasd"
  # Plans: https://developers.digitalocean.com/documentation/changelog/api-v2/new-size-slugs-for-droplet-plan-changes/
  #size   = "512mb"
  size = "s-1vcpu-1gb"
  user_data = data.template_file.cloud_init.rendered
}

output "password" {
    value = random_password.password.result
}

output "gateway_url" {
  value = "http://${digitalocean_droplet.faasd.ipv4_address}:8080/"
}

output "login_cmd" {
  value = "faas-cli login -g http://${digitalocean_droplet.faasd.ipv4_address}:8080/ -p ${random_password.password.result}"
}