Terraform is an open-source infrastructure as code (IaC) tool that allows you to define and provision data center infrastructure using a declarative configuration language. In this guide, we will walk through the steps to install Terraform on AlmaLinux 8, CentOS 8, and Rocky Linux 8.

Step 1: Update Your System

Start by ensuring your system is up to date:

sudo dnf update -y

Step 2: Install Required Dependencies

Install the necessary dependencies:

sudo dnf install -y yum-utils

Step 3: Add HashiCorp Linux Repository

Add the HashiCorp repository to your system:

sudo tee /etc/yum.repos.d/hashicorp.repo <<EOF
[hashicorp]
name=HashiCorp
baseurl=https://rpm.releases.hashicorp.com/RHEL/8/x86_64/stable
enabled=1
gpgcheck=1
gpgkey=https://rpm.releases.hashicorp.com/gpg
EOF

Step 4: Install Terraform

Now you can install Terraform using the following command:

sudo dnf install terraform

Step 5: Verify the Installation

After installation, you can verify that Terraform is installed correctly by checking its version:

terraform -version

Step 6: Create a Terraform Configuration File

Create a new directory for your Terraform configuration files:

mkdir ~/terraform-example
cd ~/terraform-example

Create a simple Terraform configuration file:

nano main.tf

Add the following content to the file:

provider "aws" {
  region = "us-east-1"
}

resource "aws_instance" "example" {
  ami           = "ami-0c55b159cbfafe1f0"
  instance_type = "t2.micro"
}

Step 7: Initialize Terraform

Initialize your Terraform configuration by running:

terraform init

Step 8: Apply Your Configuration

Apply your Terraform configuration to create the defined resources:

terraform apply

Type yes when prompted to confirm the creation of resources.

Conclusion

You have successfully installed Terraform on AlmaLinux 8, CentOS 8, and Rocky Linux 8. This powerful tool will help you automate the provisioning and management of your infrastructure.

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