module "ec2_cluster" {
  source                 = "terraform-aws-modules/ec2-instance/aws"
  version                = "1.12.0"

  name                   = "my-cluster"
  instance_count         = 5

  ami                    = "ami-ebd02392"
  instance_type          = "t2.micro"
  key_name               = "user1"
  monitoring             = true
  vpc_security_group_ids = ["sg-12345678"]
  subnet_id              = "subnet-eddcdzz4"

  tags = {
    Terraform = "true"
    Environment = "dev"
  }
}

resource "aws_ami_copy" "ubuntu-xenial-encrypted-ami" {
  name              = "ubuntu-xenial-encrypted-ami"
  description       = "An encrypted root ami based off ${data.aws_ami.ubuntu-xenial.id}"
  source_ami_id     = "${data.aws_ami.ubuntu-xenial.id}"
  source_ami_region = "eu-west-2"
  encrypted         = "true"

  tags {
    Name = "ubuntu-xenial-encrypted-ami"
  }
}

data "aws_ami" "encrypted-ami" {
  most_recent = true

  filter {
    name   = "name"
    values = ["ubuntu-xenial-encrypted"]
  }

  owners = ["self"]
}

data "aws_ami" "ubuntu-xenial" {
  most_recent = true

  filter {
    name   = "name"
    values = ["ubuntu/images/hvm-ssd/ubuntu-xenial-16.04-amd64-server-*"]
  }

  owners      = ["099720109477"]
}