my backups started failing after this:
[2025-09-09 09:34:50] Creating archive: blah-forum-2025-09-09-093246-v20250828181952.tar.gz
[2025-09-09 09:34:50] Making sure archive does not already exist...
[2025-09-09 09:34:50] Creating empty archive...
[2025-09-09 09:34:50] EXCEPTION: tar --create --file /var/www/discourse/public/backups/default/blah-forum-2025-09-09-093246-v20250828181952.tar --files-from /dev/null
tar: /var/www/discourse/public/backups/default/blah-forum-2025-09-09-093246-v20250828181952.tar: Cannot open: Permission denied
tar: Error is not recoverable: exiting now
looking at permissions from within the web_only container:
/var/www/discourse/public/backups# ls -l
total 4
drwxr-xr-x 2 root root 4096 Sep 6 12:37 default
if I look at another instance (standard install), the ownership is different:
/var/www/discourse/public/backups# ls -l
total 4
drwxr-xr-x 2 discourse www-data 4096 Sep 9 03:46 default
what’s gone wrong here and what should I change on that directory for the web_only container - should it be the same as for standard install?