How do I create multiple DigitalOcean Droplets with different configurations using Terraform, and assign each one a floating IP?

Hey!

Great question! With the recent updates, DigitalOcean has renamed Floating IPs to Reserved IPs. So, you’ll want to use the digitalocean_reserved_ip resource instead.

Here’s a quick example of how you can create multiple Droplets with different configurations and assign Reserved IPs using Terraform.

1. You can define each Droplet with different sizes, regions, and tags by using a for_each or creating separate resources for each Droplet in your main.tf.

2. To assign a Reserved IP to each Droplet, you need to replace the deprecated floating_ip resource with reserved_ip. Here’s an updated example:

provider "digitalocean" {
  token = var.digitalocean_token
}

resource "digitalocean_droplet" "web" {
  for_each = {
    "droplet1" = "nyc1"
    "droplet2" = "sfo2"
  }

  name   = each.key
  size   = var.droplet_sizes[each.key]
  region = each.value
  image  = "ubuntu-20-04-x64"
  tags   = ["web"]
}

resource "digitalocean_reserved_ip" "ip" {
  for_each = digitalocean_droplet.web
  region   = each.value.region
}

resource "digitalocean_reserved_ip_assignment" "assign_ip" {
  for_each        = digitalocean_droplet.web
  droplet_id      = digitalocean_droplet.web[each.key].id
  reserved_ip     = digitalocean_reserved_ip.ip[each.key].address
}

3. To handle different sizes, you can use a map or a variable in your variables.tf like this:

variable "droplet_sizes" {
  type = map(string)
  default = {
    "droplet1" = "s-2vcpu-4gb"
    "droplet2" = "s-1vcpu-2gb"
  }
}

4. Once you have your configurations, run:

terraform init
terraform plan
terraform apply

This will create multiple Droplets with different configurations and assign each one a Reserved IP.

If you need to expand this further, you can adjust the for_each loop or add more configurations as needed.

On another note, if you’re just getting started with Terraform and DigitalOcean, this ebook here might be helpful: Introduction to Terraform ebook.

- Bobby