Give access to off-query db from metrics.openfoodfacts.org

[4nt0ineB]

We should give access to off-query database from metrics.openfoodfacts.org to be able to create graphs of product and user events.

[alexgarel]

@4nt0ineB we will need to :

1. be sure to expose the database locally
2. add a stunnel server / client entry.

[john-gom]

Hi @4nt0ineB . We now have some historic data in staging. The off-query database is exposed on port 5512 on the staging docker host (10.1.0.200).

The PostgreSQL connection details are as follows:
Database: query
Schema: views
User: viewer
Password: off

There is a view called "product_updates_by_owner" which will summarise the updates for each day by owner_tag and update_type

[alexgarel]

FTR off-queries is currently moved to moji server.