So you’d like to automatically back up all your Discourse data every day?
Go to the /admin settings, backup, and set backup frequency to 1.
Now backup will be taken every day.
Backups are always saved on the local server disk by default.
If you want to also automatically upload your backups to Amazon S3, check enable s3 backups. You’ll need to create a unique private S3 bucket name in s3 backup bucket to store your backups.
Next, set your S3 credentials under the Files section: s3 access key id, s3 secret access key, and s3 region.
Backups are always stored on local server disk. Go to the Backups tab in the admin dashboard to browse your local server backups – you can download them any time to do a manual offsite backup.
If you’ve enabled S3 backups, check your S3 bucket to find the uploaded backup files:
Note that you can also enable an automatic move to Glacier bucket lifecycle rule to keep your S3 backup costs low.
Source: https://meta.discourse.org/t/configure-automatic-backups-for-discourse/14855