How to migrate Dagster Postgres service?

[gasgallo]

Context:

• I've deployed Dagster in k8s and I used the built-in postgres deployment by setting enabled: true in the Dagtser Helm chart
• I've created a new k8s cluster and I need to migrate my Dagster deployment to this new cluster
• I don't want to lose all the information and metadata from the existing deployment

How can I migrate the old postgres k8s service to the new cluster? I think it's possible to use pg_dump or pg_dumpall and restore the backup in the new service, but I don't have (and cannot find) enough information about the details of the database that Dagster is using.
It might also be possible to do some magic with the persistent disk used by the postgres service, but, again, I'm not sure how to handle that within the constraint of the Dagster Helm chart.

Can anybody suggest how to move forward?

Thank you!