The location of master dcache.conf that is lined on other services. Here is the place to specify the location
of zookeeper end-point, kafka brokers and any other dcache configuration otion, that should be shares accross domains.
Compose file with 3th-party services that are required by dCache, like zookeeper, postgres, kafka.
Compose file with central dCache components, like PoolManager, PnfsManager, admin shell and doors.
Compose file to start pools