```bash #!/bin/bash # Description: Provisioning a new EC2 instance # Set AWS credentials export AWS_ACCESS_KEY_ID=<your_aws_access_key> export AWS_SECRET_ACCESS_KEY=<your_aws_secret_access_key> export AWS_DEFAULT_REGION=<your_aws_default_region> # Install Terraform if not already installed if ! command -v terraform &> /dev/null; then echo "Terraform not found. Installing Terraform..." wget https://releases.hashicorp.com/terraform/0.14.10/terraform_0.14.10_linux_amd64.zip unzip terraform_0.14.10_linux_amd64.zip sudo mv terraform /usr/local/bin/ rm terraform_0.14.10_linux_amd64.zip fi # Clone or update the Terraform project if [ -d "terraform-project" ]; then echo "Terraform project already exists. Updating..." cd terraform-project git pull origin master else echo "Cloning Terraform project..." git clone <terraform_project_repository_url> terraform-project cd terraform-project fi # Initialize and apply Terraform configuration echo "Initializing Terraform..." terraform init echo "Applying Terraform configuration..." terraform apply -auto-approve # Retrieve the public IP address of the new instance instance_ip=$(terraform output -raw instance_ip) echo "New EC2 instance provisioned successfully." echo "Public IP: $instance_ip" ``` Please note that the script assumes you have the necessary AWS credentials and permissions to provision EC2 instances using Terraform. Make sure to replace `<your_aws_access_key>`, `<your_aws_secret_access_key>`, `<your_aws_default_region>`, and `<terraform_project_repository_url>` with the appropriate values. This script automates the process of provisioning a new EC2 instance using Terraform. It checks if Terraform is installed and installs it if necessary. Then, it clones the Terraform project repository or updates it if it already exists. After that, it initializes the Terraform project and applies the configuration to create the EC2 instance. Finally, it retrieves the public IP address of the new instance and displays it as output. Make sure to run the script in a secure and controlled environment, and follow best practices for handling credentials and sensitive information.