This document discusses integrating Ansible with Terraform for infrastructure provisioning. It provides the following steps: 1. Install Ansible on the systems where Terraform code will run. 2. Write Ansible playbooks to install and configure applications. 3. Copy the SSH private key file tagged to instances. 4. Write Terraform configuration code to build infrastructure and call Ansible playbooks to provision instances. It also provides an example of using Terraform workspaces to configure different instance types for different environments.

2. resource "aws_instance" "myec2" {
ami = "ami-082b5a644766e0e6f"
instance_type = "t2.micro"
key_name = "kplabs-terraform"
provisioner "remote-exec" {
inline = [
"sudo amazon-linux-extras install -y nginx1.12",
"sudo systemctl start nginx"
]
connection {
type = "ssh"
user = "ec2-user"
private_key = file("./kplabs-terraform.pem")
host = self.public_ip
}
}
}
Remote Exec Provisioners

3. Integrating Ansible with Terraform

4. • Steps:
1. Install Ansible on the system.
2. Write a playbook to install and configure the
applications.
3. Copy and paste the pem file which is tagged to the
instance.
4. Write your tf code to build and provision the instance
. Inside the tf code call ansible playbook to run it like
below.

5. Files:
nginx.yml

6. ec2.tf

12. terrafrom workspace show
terraform workspace list
terraform workspace select dev
terraform workspace new prod

13. • Example:
Project File ( ec2_web.tf )
provider "aws" {
region = "us-west-1"
access_key = "YOUR-ACCESS-KEY-HERE"
secret_key = "YOUR-SECRET-KEY-HERE"
}
module "myec2" {
source = "../../modules/ec2"
}

14. Modules File ( mod_ec2.tf )
resource "aws_instance" "myweb" {
ami = "ami-bf5540df"
instance_type = "${lookup(var.instance_type, terraform.workspace)}"
security_groups = ["default"]
tags {
Name = "web-server"
}
}
/*
default - t2.nano
dev - t2.micro
prd - m4.large
*/

15. Modules File ( variables.tf )
variable "instance_type" {
type = "map"
default = {
default = "t2.nano"
dev = "t2.micro"
prd = "m4.large"
}
}

20. Configuring Remote State File S3

21. Backend:
Steps:
• Create s3 bucket in AWS.
• Define terraform code for setting remote backend.

23. THANK YOU
•Q & A Session