workshop.tf

# export TF_VAR_do_token="qwertyuiop"

variable "do_token" {}

variable "region" { default = "lon1" }

provider "digitalocean" {
  token = "${var.do_token}"
}

resource "digitalocean_droplet" "webs" {
  image  = "docker-16-04"
  name   = "web-${terraform.workspace}-${count.index}"
  region = "${var.region}"
  size   = "512mb"

  count = 2

  ssh_keys = [
    "11:f4:d8:2d:c0:6a:a7:73:2d:6e:c4:5e:5c:1c:71:e0"
  ]

  provisioner "remote-exec" {
    inline = [
      "docker run -d -p 8080:80 -h $(hostname) iadvize/hello-world"
    ]
  }

}

resource "digitalocean_loadbalancer" "front_lb" {
  name = "webs-loadbalancer-${terraform.workspace}"
  region = "${var.region}"

  forwarding_rule {
    entry_port = 8080
    entry_protocol = "http"

    target_port = 8080
    target_protocol = "http"
  }

  healthcheck {
    port = 8080
    protocol = "http"
    path = "/"
  }

  droplet_ids = ["${digitalocean_droplet.webs.*.id}"]
}

output "ipv4" { value = "${digitalocean_droplet.webs.*.ipv4_address}" }
output "lb" { value = "${digitalocean_loadbalancer.front_lb.ip}" }