Resolve "Independence of deployment environment"

Closes #319

Everything is implemented and all tests are green, however this will be marked as a draft until I have thoroughly tested everything manually, since this is a very big merge request.

.junit/hosts

-###########################################################
-#                PLACE IN /etc/hosts                      #
-###########################################################
-
-172.30.0.5	dbrepo-userdb-u01
-172.30.0.6	dbrepo-userdb-u02
-172.30.0.7	dbrepo-userdb-u03
-172.30.0.8	dbrepo-userdb-u04
-172.31.0.2	dbrepo-broker-service
-172.31.0.3	dbrepo-search-db
\ No newline at end of file