[nominatim] Feature Request: Different database credentials for reading (nominatim) and writing (updates)

[MatthiasLohr]

Hey @robjuz,

when importing the data to a PostgreSQL cluster with multiple nodes (1 master + n replicas), it would be great if your chart would support to provide two types of credentials: One for read access (the pods deployed with nominatim UI etc.), and one for write access (for the update process). This way, all database nodes in a cluster can be used for providing API access instead of only the master node, which in general has more load to handle due to the updates. With the possibility of differentiating between read and write, the load would be more balanced.

What do you think about this?

Best regards
Matthias