skillbox/docs/clean-up-prod-db-for-import.md

Download latest backup from Heroku

heroku pg:backups:download --app appname

Load backup locally

# assumes your POSTGRES env variables are set correctly
./bin/restore-database.sh -f <dumpfile> -d <database>

Remove all users that are not admin users, also their created contents

Objective.objects.exclude(owner=None).delete()
Comment.objects.all().delete()
Assignment.objects.exclude(owner=None).exclude(owner__username="guru").delete()

User.objects.filter(is_superuser=False).delete()

Make local dump of database

./bin/dump_local_database.sh

Copy local dump to s3 bucket

aws s3 cp local.dump s3://skillbox-developer-bucket/

Get a presigned url from S3 for the dump (supposedly works from the command line, I had to use the S3 web UI)

aws s3 presign s3://skillbox-developer-bucket/local.dump

Load backup in heroku

heroku pg:backups:restore --app skillbox-preprod 'SIGNED URL' DATABASE_URL