Updated Dockerfile

Dockerfile

@@ -5,4 +5,4 @@ RUN pip install --upgrade pip
 RUN pip install waitress
 RUN pip install .
 
-CMD ["waitress-serve", "--call", "app:app"]
+CMD ["waitress-serve", "--call", "app:create_app"]

app.py

@@ -9,16 +9,17 @@ import time
 import requests
 from flask import Flask, render_template, request, send_file, redirect, url_for
 from werkzeug.utils import secure_filename
-
 from stark import run
 
-app = Flask(__name__)
 UPLOAD_FOLDER = 'uploads'
 ALLOWED_EXTENSIONS = {'conllu'}
 DAYS_BEFORE_DELETION = 1
-app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
 
 
+def create_app():
+    app = Flask(__name__)
+    app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
+
     def create_default_configs():
         configs = {}
         # mandatory parameters
@@ -258,6 +259,9 @@ def index():
         # return render_template('index.html')
         return render_template('index.html')
 
+    return app
+
 
 if __name__ == '__main__':
+    app = create_app()
     app.run(debug=True)