diff --git a/src/main/resources/config/application-demo.properties b/src/main/resources/config/application-demo.properties
index 610d2b50..74914f2c 100644
--- a/src/main/resources/config/application-demo.properties
+++ b/src/main/resources/config/application-demo.properties
@@ -5,17 +5,14 @@ server.servlet.context-path=/
 server.servlet.session.cookie.http-only=true
 server.servlet.session.tracking-modes=cookie
 
+# database server
+datastore.mariadb.server.address=seb-server-mariadb
+datastore.mariadb.server.port=3306
+
 # data source configuration
-
-# spring.h2.console.enabled=true
-# spring.datasource.platform=h2
-# spring.datasource.url=jdbc:h2:mem:demo;MODE=MySQL;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
-# spring.datasource.driver-class-name=org.h2.Driver
-
 spring.datasource.initialize=true
 spring.datasource.initialization-mode=always
-# NOTE: try to connect to a mariadb server on a docker container named seb-server-mariadb within the same (docker)network
-spring.datasource.url=jdbc:mariadb://seb-server-mariadb:3306/SEBServer?useSSL=false&createDatabaseIfNotExist=true
+spring.datasource.url=jdbc:mariadb://${datastore.mariadb.server.address}:${datastore.mariadb.server.port}/SEBServer?useSSL=false&createDatabaseIfNotExist=true
 spring.datasource.driver-class-name=org.mariadb.jdbc.Driver
 spring.datasource.platform=demo