Simple Terraform Digitalocean Configuration

main.tf

# Set the variable value in *.tfvars file
# or using -var="do_token=..." CLI option
variable "do_token" {}
variable "ssh_key_name" {}

# Configure the DigitalOcean Provider
provider "digitalocean" {
  token = "${var.do_token}"
}

# Use existing ssh key stored on Digital Ocean
data "digitalocean_ssh_key" "default" {
  name = "${var.ssh_key_name}"
}

# Create a web server
resource "digitalocean_droplet" "web" {
  image    = "ubuntu-18-04-x64"
  name     = "web-1"
  region   = "ams3"
  size     = "s-1vcpu-1gb"
  ssh_keys = ["${data.digitalocean_ssh_key.default.fingerprint}"]
}

output "controller_ip_address" {
    value = "${digitalocean_droplet.web.ipv4_address}"
}

# Store the digital ocean token as an environment variable called DOTOKEN
# export DOTOKEN="DOTOKEN"
# test token by running: $ echo $DOTOKEN

# Store the ssh key name as an environment variable called SSHKEYNAME
# export SSHKEYNAME="SSHKEYNAME"
# test token by running: $ echo $SSHKEYNAME

# Run these:
# $ terraform init
# $ terraform plan -var="do_token=$DOTOKEN" -var="ssh_key_name=$SSHKEYNAME"
    # - Output will end with: Plan: 1 to add, 0 to change, 0 to destroy.
# $ terraform apply -var="do_token=$DOTOKEN" -var="ssh_key_name=$SSHKEYNAME"

# To destroy:
# $ terraform destroy -var="do_token=$DOTOKEN" -var="ssh_key_name=$SSHKEYNAME"