Using a script to set up the database properties file

this will allow us to use a consistend environment file
to set up everything

docker-compose.yml

@@ -25,8 +25,9 @@ services:
         restart: unless-stopped
         env_file:
             - configuration.env
-#        volumes:
-#            - ./config/config.properties:/app/config.properties:ro
+        volumes:
+            - ./entrypoint.d/backend-startup.sh:/app/backend-startup.sh:ro
+        command: /bin/sh /app/backend-startup.sh
         depends_on:
             - postgres
     nginx: