```
$ cat docker-compose.yml | grep "=" | sort
- DATADIR=/var/lib/mysql
- DBADDRESS=127.0.0.1
- DBHOST=127.0.0.1
- DBINITIALIZER=/opt/db-loaders/schema/initialize_db.py
- DBNAME=stocks
- DBPASS=dbadmin123
- DBPORT=3306
- DBSCHEMA=/opt/db-loaders/schema/db_schema.py
- DBUSER=dbadmin
- REBUILD_DB_ON_START=1
$
```