Create s3 Bucket with Terraform

Introduction

Welcome to the world of Infrastructure as Code. In this tutorial we will learn how to create an s3 bucket with terraform following just 3 Steps (2 actually)!

Step1: Setup AWS cli (ignore if already installed)

Whether it's your local machine or CI/CD platform, you will need to setup AWS-CLI there.

1. Install - Assuming you have python installed you can just run this command on your terminal/cmd -

pip install awscli

Or pip3 if you have multiple python version installed.

Else you can just follow official aws cli installation doc.

1. Configure CLI Run this command on terminal -

aws configure

And paste your access key, secrete access key and region and default output format as prompted -

AWS Access Key ID: MYACCESSKEY
AWS Secret Access Key: MYSECRETKEY
Default region name [us-west-2]: my-aws-region
Default output format [None]: json

That's it. Now you can start running terraform code and start making magics.

Step2: Create s3 bucket

This is the simplest way to create an s3 bucket with terraform -

# declare cloud provider first
provider "aws" {
    region      = "your-aws-region"
}

# to interact with aws resources
terraform {
    required_providers {
      aws = {
        source  = "hashicorp/aws"
        version = "~> 4.30"
      }
    }
}

# create s3 bucket named my-lovely-bucket
resource "aws_s3_bucket" "demos3" {
    bucket = "my-lovely-bucket"   
}

You can download the code from here.

Step3: Apply

That's it. Now go inside the terraform directory, start a terminal in that folder and run -

terraform init

It will download necessary things along with a '.tstate' file. After than you can just apply. But it's good practice to see the possible changes first using plan then apply. So, run -

terraform plan 

It will output possible changes list, make sure you go through and if you are ok just run -

terraform apply

That's it!! Your changes (creating a bucket) will be applied on aws! Go to aws console and check it for yourself.

Remember: While learning, to avoid unexpected bill please destroy resources after playing around.

To Destroy

terraform destroy

Conclusion

I hope you had fun. Best wishes for your cloudy journey ahead!