An opinionated module that creates an ec2 instance to be used as a bastion.

The simplest instantiation requires only an environment and ami_id.

module "ec2" {
  source = "[email protected]:kiawnna/terraform-aws-ec2-instance.git"
  ami_id = "ami-id"
  environment = var.environment
}

This example will create an ec2 instance without a key pair, with the defaults found below in Variables / Customizations.

To use this module as a bastion, you would need to add a key_pair and subnet_id as well. The below example also shows how you can programmatically grab the ami id for an Amazon Linux 2 AMI.

data "aws_ami" "amazon-2" {
  most_recent = true

  filter {
    name = "name"
    values = ["amzn2-ami-hvm-*-x86_64-ebs"]
  }
  owners = ["amazon"]
}

module "bastion" {
  source = "[email protected]:kiawnna/terraform-aws-ec2-instance.git"
  ami_id = data.aws_ami.amazon-2.id
  key_pair = "my-key-pair.pem"
  environment = var.environment
  subnet_id = "subnet-id"
}

This example will create an amazon linux 2 instance, type t2.micro in a subnet of your choice.

• An EC2 instance.

The instance id.

Reference it as:

module.ec2_instance_module_name.instance_id

The variable below can be customized to fit your needs. The current defaults are:

• instance_type → t2.micro
• associate_public_ip → true
• subnet_id → none
• key_pair → none
• security_group_ids → none
• environment → none

See the variables.tf file for further information.

Tags are automatically added to all resources where possible. Tags will have the following format:

tags = {
    Name = "${var.environment}-bastion"
    Deployment_Method = "terraform"
    Environment = var.environment
}