Upgrading from a very old container fails due to postgres permission errors

[supermathie (Michael Brown)]

@pfaffman

Find a working server and do an ls -ld /var/discourse/shared/standalone/postgres_data

Or, easier:

○ → docker run --rm discourse/base:2.0.20250226-0128 id postgres
uid=101(postgres) gid=104(postgres) groups=104(postgres),107(ssl-cert)

or even better:

docker run --rm -v /var/discourse/shared/standalone/postgres_data:/data discourse/base:2.0.20250226-0128 chown -R postgres:postgres /data