How to manage related applications
Modern postgresql_client interface:
Relations to new applications are supported via the “postgresql_client” interface. To create a relation:
juju integrate pgbouncer application
To remove a relation:
juju remove-relation pgbouncer application
All listed on CharmHub applications are available here, e.g. postgresql-test-app.
Legacy pgsql interface:
This charm also supports the legacy relation via the pgsql interface. Please note that these interface is deprecated.
juju relate pgbouncer:db myapplication
Also extended permissions can be requested using db-admin endpoint:
juju relate pgbouncer:db-admin myapplication
Internal operator user
To rotate the internal router passwords, the relation with backend-database should be removed and related again. That process will generate a new user and password for the application, while retaining the requested database and data.
juju remove-relation postgresql pgbouncer
juju integrate postgresql pgbouncer