How do I manage Amazon S3 object versioning?

Introduction

In this guide, we’ll explore how to manage object versioning for an S3 bucket. S3 versioning keeps multiple variants of an object in the same bucket, allowing you to preserve, retrieve, and restore every version of every object stored in your buckets. When you enable versioning in a bucket, objects in that bucket will have a unique version ID, enhancing data resilience and facilitating data recovery.

Detailed Explanation

We will create an S3 bucket and enable versioning for it. This ensures that each object stored in the bucket gets a unique version ID for every new version that is uploaded. This feature is crucial for use cases where data backup and recovery are essential.

Key Components

• aws_s3_bucket: Defines the S3 bucket.
• aws_s3_bucket_versioning: Configures versioning for the S3 bucket.

Let’s see how we can achieve this with the following program:

import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

const example = new aws.s3.BucketV2("example", {bucket: "example-bucket"});
const exampleBucketVersioningV2 = new aws.s3.BucketVersioningV2("example", {
    bucket: example.bucket,
    versioningConfiguration: {
        status: "Enabled",
    },
});
export const bucketName = example.bucket;
export const versioningStatus = exampleBucketVersioningV2.versioningConfiguration.apply(versioningConfiguration => versioningConfiguration.status);

Key Points

• We defined an S3 bucket with the aws_s3_bucket resource.
• Enabled versioning using the aws_s3_bucket_versioning resource and set the status to "Enabled".
• The outputs bucket_name and versioning_status are used to verify the bucket’s creation and versioning status.

Summary

In this guide, we created an S3 bucket and enabled versioning for it. This allows the bucket to maintain multiple versions of each object, providing enhanced data resilience and facilitating data recovery. Versioning can help protect against accidental or malicious data loss and enhances your ability to recover from unintended user actions and application failures.