It would be nice if there would be a way to create folders and copy files to the target dev db containers

i.e. in case of tablespace folders creation or just installing some additional DB extensions from PGXN etc

CREATE TABLESPACE app_hot  OWNER app LOCATION '/var/lib/postgresql/app/hot';
CREATE TABLESPACE app_warm OWNER app LOCATION '/var/lib/postgresql/app/warm';
CREATE TABLESPACE app_cold OWNER app LOCATION '/var/lib/postgresql/app/cold';

I don't think atlas has any means to track tablespaces, so this also relates to #1440