How do I re-generate config after a migration?

[stemid]

I migrated my Nextcloud from one k8s cluster to another by moving the entire PV manually using another container, then starting nextcloud with an existing PV.

This worked for a while but I forgot to update the DB info to the new postgres-operator so NC was actually connecting to the old postgres server.

When trying to resolve this I just can't figure out how to make it re-write the config. The environment of the nextcloud Pod shows the correct POSTGRES_HOST but the config.php shows the old one.

I've tried deleting the config.php, I also tried deleting autoconfig.php but they're not being re-created so now nextcloud is in an uninstalled state.

How can I make autoconfig.php be re-created?