Change database connection settings

app/main.py

@@ -28,7 +28,7 @@ class Base(DeclarativeBase):
 
 
 app.config["SQLALCHEMY_DATABASE_URI"] = (
-    "mysql://root:root@localhost:3306/topperstasks"
+    f"mysql://root:root@{os.getenv('DB_HOST', "db")}:3306/topperstasks"
 )
 db = SQLAlchemy(model_class=Base)
 db.init_app(app)

docker-compose.yml

@@ -0,0 +1,8 @@
+version: "2"
+services:
+  app:
+    build: ./app
+    links:
+      - db
+    ports:
+      - "8000:8000"