We need a script that takes a mongo database with files in local storage, and migrates it to S3 storage. 

This will require to move all files from disk to S3 buckets, we should use this as an opportunity as well check for consistency. As the files are moved we should modify the mongo database to the new location in S3. 

We need to make a list of all files that have been migrated so we can delete them after migration is done and we checked all files.

Meanwhile, make it as a docker image.