Thank you for the tips. Here’s what I tried so far, following the Bitnami wiki.
trying to edit any file would result in: No space left on device.
So I decided to backup the images first:
scp -r -i ~/.bitnami/bitnami-hosting.pem bitnami@myserver.bitnamiapp.com:/opt/bitnami/apps/discourse/htdocs/public/uploads/default/* .
I tried,
pg_dump -U postgres bitnami_discourse > backup.sql
but got an error:
/opt/bitnami/postgresql/bin/pg_dump.bin: error while loading shared libraries: libpq.so.5: cannot open shared object file: No such file or directory
I tried to find the offending library with sudo find /opt/bitnami/postgresql/ -name libpq.so.5 and indeed it’s at /opt/bitnami/postgresql/lib/libpq.so.5
I tried sudo ldconfig -v as per this SO answer and this one but without success.
I’m afraid when I opened /opt/bitnami/postgresql/bin/setenv.sh to try to change the psql password, because of lack of space nothing was saved. So setenv.sh is now empty. Are the contents of sentenv.sh standard? Or should I ask at Bitnami?
Thank you.