OpenTofu is an open-source infrastructure as code tool forked from Terraform. It allows you to define and manage cloud resources using a declarative language. This tutorial will guide you through installing OpenTofu and creating a simple configuration.
Step 1: Install OpenTofu
Visit the official OpenTofu GitHub releases page: https://github.com/opentofu/opentofu/releases
Download the appropriate version for your operating system (Windows, macOS, or Linux).
Extract the downloaded archive.
Add the extracted directory to your system's PATH.
Verify the installation by opening a terminal and running:
tofu version
Step 2: Set Up a Working Directory
- Create a new directory for your OpenTofu project:
mkdir opentofu-demo
cd opentofu-demo
- Create a new file named
main.tf
:
touch main.tf
Step 3: Configure the Provider
Open
main.tf
in your text editor.Add the following code to configure the AWS provider (replace with your preferred cloud provider if different):
terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = "~> 4.0"
}
}
}
provider "aws" {
region = "us-west-2"
}
Step 4: Define Resources
- In the same
main.tf
file, add the following code to create an S3 bucket:
resource "aws_s3_bucket" "demo_bucket" {
bucket = "opentofu-demo-bucket-${random_id.bucket_id.hex}"
}
resource "random_id" "bucket_id" {
byte_length = 8
}
- This creates an S3 bucket with a unique name using a random ID.
Step 5: Initialize OpenTofu
- In your terminal, run:
tofu init
- This command initializes the working directory, downloads the required provider plugins, and sets up the backend.
Step 6: Plan the Changes
- Run the following command to see what changes OpenTofu will make:
tofu plan
- Review the planned changes carefully.
Step 7: Apply the Changes
- If you're satisfied with the plan, apply the changes:
tofu apply
- Type 'yes' when prompted to confirm the action.
Step 8: Verify the Resources
Log in to your AWS console and check that the S3 bucket has been created.
Alternatively, use the AWS CLI to list your buckets:
aws s3 ls
Step 9: Clean Up (Optional)
- To remove the created resources, run:
tofu destroy
- Type 'yes' when prompted to confirm the action.
Happy Clouding!!
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