>   a. Add in (gnu services) an ‘hosts-database-service-type’ that would
>      take could be extended with IP/name pairs that it would put in
>      /etc/hosts.
>
>   b. Have ‘essential-services’ extend ‘hosts-database-service-type’.
>
> In the container-with-shared-network case we’d arrange to not extend
> ‘hosts-database-service-type’, which would thus not produce /etc/hosts.

How would we arrange to not extend `hosts-database-service-type' in the
container-with-shared-network case? Wouldn't such an arrangement still
require us to pass #:container-shared-network? to `essential-services'?