Prepare IaC

In accordance with our Infrastructure as Code principles, this deployment will also be mostly template driven. We will try to reuse some of the Terraform and Salt code from previous chapters.

Terraform templates

For this particular setup we can simplify our template as we will only need the VPC, some networking bits, and an EC2 instance.

Let's browse through the files in our TF repository:

Variables

The few variables we need can be grouped into VPC and EC2 related ones:

Note

Please refer to: https://github.com/PacktPublishing/Implementing-DevOps-on-AWS/blob/master/5585_04_CodeFiles/Terraform/variables.tf.

VPC

variable "aws-region" { 
  type = "string" 
  description = "AWS region" 
} 
variable "vpc-cidr" { 
  type = "string" 
  description = "VPC CIDR" 
} 
variable "vpc-name" { 
  type = "string" 
  description = "VPC name" 
} 
variable "aws-availability-zones" { 
  type = &quot...