Added Gunicorn and Nginx for production use

docker-compose.prod.yml

   web:
     build: ./web
     container_name: python
-    ports:
-      - "5000:5000"
-    volumes:
-      - ./web:/code
+    expose:
+      - 5000
     env_file:
       - ./.env.prod
+    depends_on:
+      - db
+    command: gunicorn --workers=3 --bind 0.0.0.0:5000 "app:create_app()"
 
   db:
     image: mariadb:latest
     env_file:
       - ./.env.prod
     volumes:
-      dbdata:/var/lib/mysql
+      - dbdata:/var/lib/mysql
     command: '--default-authentication-plugin=mysql_native_password'
+
+  nginx:
+    image: nginx:latest
+    container_name: nginx
+    restart: unless-stopped
+    ports:
+      - "1337:80"
+    volumes:
+      - ./nginx-conf:/etc/nginx/conf.d
+    depends_on:
+      - web
+
+volumes:
+  dbdata:

nginx-conf/toolkit.conf

+upstream toolkit {
+    server web:5000;
+}
+
+server {
+
+    listen 80;
+
+    location / {
+        proxy_pass http://toolkit;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header Host $host;
+        proxy_redirect off;
+    }
+
+}

web/app/__init__.py

     # get config variables from OS environment variables: set in env file passed through Docker Compose
     app.config['SECRET_KEY'] = os.environ.get('SECRET_KEY')
     app.config['SQLALCHEMY_DATABASE_URI'] = os.environ.get('DATABASE_URL')
+    app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = 'False'
 
     db.init_app(app)
 

web/requirements.txt

 flask-sqlalchemy
 flask-login
 flask-moment
+gunicorn