Delete old versions of derived images

[deanmoses]

Derived images live in a S3 bucket path like this: /i/2001/12-31/image.jpg/**versionId**/jpeg/200x200

When there's a new version of the original image, all the derived images under **versionId** are no longer used. They should be deleted.

• I think I can have a trigger that listens for a new version in the original images bucket, and cleans up previous derived images?
• I would like to not delete them instantly, in case people are actively looking at the older version
• Maybe that trigger sets some sort of tag on the old images, which get cleaned up after 30 days or so
  • No - I CAN delete by tag, but not delete by the day on which it was tagged
  • However, expiration time is based on the last modified timestamp of the object
  • Unfortunately, tagging does not update last modified
  • I'm not sure how to update last modified -- needs more research

[deanmoses]

The live site uploads new versions so rarely that I can live with the duplication for v1.

I'll have to clean up the test bucket at some point, but I can do that manually.