Launch and Configure Webserver using Terraform

This project provides a detailed guide for launching, connecting to, and configuring a webserver on AWS using Terraform. The steps include configuring Terraform, managing AWS resources, and ensuring a successful deployment.

Prerequisites

• Ensure Terraform is installed and configured.
• Ensure AWS CLI is installed and configured with your access and secret keys using aws configure.
• Ensure Git is installed.

Steps

1. Launch EC2 Instance

Begin by launching an EC2 instance through the AWS Management Console or using a predefined Terraform configuration.

2. Connect to EC2 Instance

Connect to your EC2 instance via SSH using the appropriate key pair.

3. Install Terraform and Dependencies

If Terraform is not already installed, follow the instructions to install it. Also, ensure that AWS CLI is set up and configured:

# Install Terraform
# Ensure AWS CLI is configured
aws configure

4. Install Git

Install Git on your instance:

sudo yum install git -y
git --version
git config --global user.name "username"
git config --global user.email "email@gmail.com"

5. Clone the Repository

Clone the repository containing the Terraform configurations:

git clone https://github.com/atulkamble/terraform-webserver-setup
cd terraform-webserver-setup

Alternatively, create the project files manually using PowerShell:

mkdir terraformproject
cd .\terraformproject\
New-Item main.tf
New-Item variables.tf
code .
mkdir aws
cd aws
mkdir aws_keys
cd .\aws_keys\

6. Create Key Pair

Create an AWS key pair named mywebserver.pem through the AWS Management Console. Save the key pair to the aws/aws_keys/ directory:

chmod 400 aws/aws_keys/mywebserver.pem

7. Update Terraform Configuration

Update main.tf with the following:

• Specify the AWS region.
• Configure AWS provider settings.
• Set the VPC ID, subnet ID, and AMI ID.
• Configure the key pair name.

Update variables.tf to include the key pair name.

8. Initialize and Apply Terraform Configuration

Run the following Terraform commands to initialize, validate, format, plan, and apply the configuration:

terraform init
terraform validate
terraform fmt
terraform plan
terraform apply

9. Verify Deployment

Once Terraform has successfully applied the configuration, retrieve the public IP address of the instance and verify the webserver by accessing it via a browser.

10. Clean Up

If you need to destroy the resources created by Terraform:

terraform destroy

11. Commit and Push Code

Commit your changes and push them to the GitHub repository:

git add .
git commit -m "Initial commit"
git push origin main

For private repositories, use your GitHub token:

git push https://token@github.com/username/terraform-webserver.git

By following these steps, you will successfully deploy and manage a webserver on AWS using Terraform.