add gitattributes to handle line ending settings and expose ports on docker compose

.gitattributes

@@ -0,0 +1 @@
+*.sh  text  eol=lf

docker-compose.yml

@@ -2,11 +2,9 @@ version: '2'
 services:
   rollerverbrauch:
     build: .
-    volumes:
-      - ./compose_config/:/config
     environment:
       - config=/config/config.py
       - DATABASE_ENV_MYSQL_ROOT_PASSWORD=foobar123
       - FLASK_CONFIG=testing
     ports:
-      - 5000:5000
+      - 127.0.0.1:5000:5000