This cleans up the update-db script, and doesn't require that the variables be declared.

update-db

@@ -1,9 +1,15 @@
 #!/bin/bash
 
-source ".env"
+set -o allexport
+source .env
+set +o allexport
 
 website="https://$VIRTUAL_HOST"
-command="docker compose exec database mariadb"
+DATABASE_SERVICE="database_${COMPOSE_PROJECT_NAME}"
+MYSQL_USER=wordpress
+WORDPRESS_DB_PASSWORD=wordpress
+MYSQL_DATABASE=wordpress
+command="docker compose exec $DATABASE_SERVICE mariadb"
 
 echo $website