Don't expose port + set mysql hostname

Author: jekkos

docker-compose.test.yml

@@ -11,7 +11,7 @@ services:
         environment:
           - CI_ENV=testing
           - ENCRYPTION_KEY=
-          - MYSQL_HOST_NAME=127.0.0.1
+          - MYSQL_HOST_NAME=mysql
           - MYSQL_DATABASE=ospos
           - MYSQL_USERNAME=admin
           - MYSQL_PASSWORD=pointofsale
@@ -25,8 +25,6 @@ services:
         image: mariadb:10.3
         container_name: mysql
         restart: always
-        ports:
-          - "3306:3306"
         volumes:
           - ./database/database.sql:/docker-entrypoint-initdb.d/database.sql
         environment: