Choosing an AWS bucket name and how to create a random bucket name

An Amazon S3 bucket name must be globally unique, as the S3 namespace is shared with all AWS accounts. This means no two buckets should have the same name.

By using Terraform, you can achieve this using the random_id resource. byte_length defines the number of random bytes to produce, and in this case, there are 8 bits of random bytes, which means it will add 8 extra bits at the end of bucket, as illustrated in the following code snippet:

resource "random_id" "my-random-id" {
byte_length = 8
}

Then, you can pass random_id to the aws_s3_bucket resource to add randomness to the bucket, as illustrated in the following code snippet:

resource "aws_s3_bucket" "my-bucket" {
bucket = "my-bucket-${random_id.my-random-id.dec}"
}

By choosing the random_id resource, you can simplify and automate your S3 bucket random bucket name creation.