In this blog post, I will show you how to create an AWS EC2 instance using Terraform in a few simple steps.
The EC2 instance in this post will be a Linux CentOS VM.
Before You Start
Before you start, make sure you have the following:
Install Terraform on Windows 10 or Linux
Setup AWS CLI with AWS configure on the machine you are running the code.
Terraform will use the credentials of the AWS configure user.
Create Key Pair
You will need to create a key pair that will enable you to log in to the instance.
Without this step, you can’t log in to the VM.
Make sure you note down the name of the key you create, in my case the name is linuxec2
Terraform code
Below is the code you will need to deploy the VM.
Save the file in a folder and name it with .tf at the end.
# Provider configuration
provider "aws" {
region = "ap-southeast-2"
}
# Resource configuration
resource "aws_instance" "CentOSEC2" {
ami = "ami-000a59677875221a3"
instance_type = "t2.micro"
key_name = "linuxec2"
}
Run
To run the code, I will first urn the init command to get all Terraform to start.
terraform init
Next, I will run the plan command below, to check what will be created and if the code is OK.
terrafrom plan
Apply
To apply the code and deploy the VM, I will run the apply command below.
terraform apply
After running the command , I can check the results using the show command or from the portal.
terraform.exe show
Clean up
To clean up and delete the VM and all related resources run the following command
terraform destroy