Terraform Demo

A quick demo of Terraform. It creates multiple CoreOS instances in Amazon EC2. This script is still in early development.

You will need to set the following variables either in a terraform.tfvars file or via the commandline:

# EC2 Variables
access_key = "YOUR_ACCESS_KEY"
secret_key = "YOUR_SECRET_KEY"

Also currently you need to set the count you want in the count_override.tf file. If you want ssh access set the aws_key_name variable to an aws key name or remove all references to it from this count_override.tf

variable "aws_key_name" {}

resource "aws_instance" "docker_host" {
  count = 3
  key_name = "${var.aws_key_name}"
}

To run:

Configure the files in the tf directory. Rename them so that they do not have the .example extension.
Build the container
docker build -t buildingbananas/terraform-demo .
run the testing container interactively
docker run -i -t --entrypoint=/bin/bash buildingbananas/terraform-demo -s
create the default 3 instance CoreOS cluster
terraform apply --var-file=terraform.tfvars -var token=$(curl https://discovery.etcd.io/new)

##ToDo List

Work out issues with security group
Compile terraform from source in the docker container so that it always has the latest patches
Move the user_data to a file
Set up count so it's an interpolated variable and remove the need for count_override.tf file
Work out a better way method to have optional fields like key name

funkymonkeymonk/terraform-demo

Terraform Demo