Reconfigured environment variables for security

.env.dev

+# This config file contains the environment variables for the application and for the database
+
+# Flask variables
+FLASK_APP=app
+FLASK_RUN_HOST=0.0.0.0
+FLASK_ENV=development
+SECRET_KEY=f9DWPyF70N
+DATABASE_URL=sqlite:///db.sqlite

.gitignore

 web/app/__pycache__/
 web/app/db.sqlite
-.env.dev
+.env.prod

docker-compose.prod.yml

+version: "3.9"
+services:
+  web:
+    build: ./web
+    container_name: python
+    ports:
+      - "5000:5000"
+    volumes:
+      - ./web:/code
+    env_file:
+      - ./.env.prod
+
+  db:
+    image: mariadb:latest
+    container_name: mariadb
+    restart: unless-stopped
+    env_file:
+      - ./.env.prod
+    volumes:
+      dbdata:/var/lib/mysql
+    command: '--default-authentication-plugin=mysql_native_password'

web/app/__init__.py

 from flask import Flask
 from flask_sqlalchemy import SQLAlchemy
 from flask_login import LoginManager
+import os
 
 # init SQLAlchemy so we can use it later in our models
 db = SQLAlchemy()
 def create_app():
     app = Flask(__name__)
 
-    app.config['SECRET_KEY'] = 'f9DWPyF70N'
-    app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///db.sqlite'
+    app.config['SECRET_KEY'] = os.environ.get('SECRET_KEY')
+    app.config['SQLALCHEMY_DATABASE_URI'] = os.environ.get('DATABASE_URL')
 
     db.init_app(app)
 

web/app/tool.py

 from werkzeug.exceptions import abort
 from . import db
 
+tool = Blueprint('tool', __name__)
+
 def get_tool(tool_id):
     tool = Tool.query.filter_by(id=tool_id).first()
     if tool is None:
         abort(404)
     return tool
 
-tool = Blueprint('tool', __name__)
-
 @tool.route('/tools')
 def get_tools():
     tools = Tool.query

web/requirements.txt

 flask
-requests
 flask-sqlalchemy
 flask-login