Execute .sql files when compose creates the volume

Only done once per created volume.

Author: Ferenc Hammerl

.devcontainer/docker-compose.yml

@@ -21,6 +21,7 @@ services:
       - "5432:5432"
     volumes:
       - pg_db:/var/lib/postgresql/data
+      - ../dbconfig/:/docker-entrypoint-initdb.d/
 
 volumes:
   pg_db: