Terraform stack example

gistfile1.txt

#cloud-config

coreos:
  units:
    - name: metabase.service
      command: start
      enable: true
      content: |
        [Unit]
        Description=Metabase analytics dashboard
        After=docker.service

        [Service]
        Slice=machine.slice
        ExecStartPre=/usr/bin/mkdir -p /home/core/metabase-data
        ExecStart=/usr/bin/rkt run \
                    --insecure-options=image \
                    --trust-keys-from-https \
                    --port=3000-tcp:80 \
                    docker://metabase/metabase    

        KillMode=mixed
        Restart=always

        [Install]
        WantedBy=multi-user.target

main.tf

# AWS-specific parameters

provider "aws" {
  region = "us-east-1"
}

terraform {
  backend "s3" {
    bucket = "castle-terraform-infrastructure"
    key    = "metabase"
    region = "us-east-1"
  }
}

# Running EC2 instance

data "template_file" "cloudconfig" {
  template = "${file("cloudconfig.tpl")}"
  vars { ... }
}

resource "aws_instance" "metabase" {
  ami           = "ami-919e8987"
  instance_type = "t2.small"
  user_data = "${data.template_file.cloudconfig.rendered}"
  key_name = "...."
}


# Service Discovery: adjusting metabase.castle.co record automatically

provider "cloudflare" {
  email = "admin@example.com"
}

resource "cloudflare_record" "my_dns_record" {
  domain = "example.com"
  name   = "metabase"
  value  = "${aws_instance.metabase.public_ip}"
  type   = "A"
  proxied = true
}