S3 Versioning

Now let’s talk about versioning in Amazon S3.

We’ve already seen how to create a website using S3, but it would be nice to be able to update it in a safe way. That’s where versioning comes in.

What Is S3 Versioning?

  • You can version your files in Amazon S3.
  • This is a setting that must be enabled at the bucket level.

  • Once versioning is enabled:

    • Whenever a user uploads a file, it creates a version of that file at the selected key.

    • If you re-upload to the same key, instead of overwriting the file:

      • It creates Version 2, then Version 3, and so on.
workshop scene

Why Use Versioning?

  1. Protection Against Unintended Deletes

    • When you delete a versioned file, it adds a delete marker.
    • This allows you to restore previous versions instead of losing data permanently.

  2. Easy Rollback

    • You can easily roll back to a previous version, for example, to a version from two days ago.

Important Notes

  • Any file that was not versioned before versioning was enabled will have the version: null.

  • If you suspend versioning, it does not delete previous versions.

    • Suspending is a safe operation.

Now let’s go into the console and have a look at how we can use versioning….

S3 Website Overview Hands On S3 Versioning Hands On