An S3 Bucket is similar to an NFS share in that it is a mountable storage volume.

This assumes you have setup Terraform with the Amazon Web Services (AWS) provider. If not, check out my article Amazon Web Services (AWS) Getting Started with Terraform.

Let's say you have the following files on your Terraform server.

├── required_providers.tf
├── s3_buckets (directory)
│   ├── provider.tf
│   ├── buckets.tf

required_providers.tf will almost always have this.

terraform {
  required_providers {
    aws = {
      source  = "hashicorp/aws"
    }
  }
}

Let's say provider.tf in the s3_buckets directory has the following. In this example, the "default" profile in /home/username/.aws/config and /home/username/.aws/credentials is being used. This assumes you have setup Terraform as described in Amazon Web Services (AWS) - Getting Started with Terraform.

provider "aws" {
  alias   = "default"
  profile = "default"
  region  = "default"
}

And let's say buckets.tf contains something like this.

resource "aws_s3_bucket" "my_bucket_fjfnv9d3d9" {
  bucket = "my-bucket-fjfnv9d3d9"

  tags = {
    Name        = "my-bucket-fjfnv9d3d9"
    Environment = "staging"
  }
}

You may need to run the terraform init command.

terraform init

The terraform plan command can be used to see what Terraform will try to do.

terraform plan

And the terraform apply command can be used to create the S3 Bucket.

terraform apply