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[Canapin (Coin-coin le Canapin)]

@Isambard

Is there an easy way to trigger the backup externally

Yes, you can run backups from the command line:

@supermathie

You have a scheduler outside of the container available, right?

You can schedule it there, e.g.:

# put in host crontab
# run backup once every 4 hours on the hour
0 */4 * * * docker exec app discourse backup --sql-only