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

@@ -9,17 +9,18 @@ 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_default_configs():
+def create_app():
+    app = Flask(__name__)
+    app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
+
+    def create_default_configs():
         configs = {}
         # mandatory parameters
         configs['input_path'] = 'data/sl_ssj-ud_v2.4.conllu'
@@ -55,36 +56,36 @@ def create_default_configs():
         return configs
 
 
-def allowed_file(filename):
+    def allowed_file(filename):
         return '.' in filename and \
                filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
 
 
-@app.route('/upload')
-def upload_file2():
+    @app.route('/upload')
+    def upload_file2():
         return render_template('upload.html')
 
 
-@app.route('/uploader', methods=['GET', 'POST'])
-def upload_file():
+    @app.route('/uploader', methods=['GET', 'POST'])
+    def upload_file():
         if request.method == 'POST':
             f = request.files['file']
             f.save(secure_filename(f.filename))
             return 'file uploaded successfully'
 
 
-@app.route('/about', methods=['GET'])
-def about():
+    @app.route('/about', methods=['GET'])
+    def about():
         return render_template('about.html')
 
 
-# @app.route('/result/<result_id>/download', methods=['GET'])
-# def download_result(result_id):
-#     return
+    # @app.route('/result/<result_id>/download', methods=['GET'])
+    # def download_result(result_id):
+    #     return
 
 
-@app.route('/result/<result_id>', methods=['GET', 'POST'])
-def result(result_id):
+    @app.route('/result/<result_id>', methods=['GET', 'POST'])
+    def result(result_id):
 
         if request.method == 'POST':
             for filename in os.listdir('media'):
@@ -125,8 +126,8 @@ def result(result_id):
         return render_template('result.html', head_row=head, content=content_dict)
 
 
-@app.route('/', methods=['GET', 'POST'])
-def index():
+    @app.route('/', methods=['GET', 'POST'])
+    def index():
         if request.method == 'POST':
             form = request.form
             configs = {}
@@ -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)