Upload files to 'flaskapp/app'

flaskapp/app/Dockerfile

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+FROM python:3.6.8-alpine3.9
+
+LABEL MAINTAINER="FirstName LastName <example@domain.com>"
+
+ENV GROUP_ID=1000 \
+    USER_ID=1000
+
+WORKDIR /var/www/
+
+ADD . /var/www/
+RUN pip install -r requirements.txt
+RUN pip install gunicorn
+
+RUN addgroup -g $GROUP_ID www
+RUN adduser -D -u $USER_ID -G www www -s /bin/sh
+
+USER www
+
+EXPOSE 5000
+
+CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "wsgi"]

flaskapp/app/app.py

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+import os
+from flask import Flask, request, jsonify
+from flask_pymongo import PyMongo
+
+application = Flask(__name__)
+
+application.config["MONGO_URI"] = 'mongodb://' + os.environ['MONGODB_USERNAME'] + ':' + os.environ['MONGODB_PASSWORD'] + '@' +  os.environ['MONGODB_HOSTNAME'] + ':27017/' + os.environ['MONGODB_DATABASE']
+
+mongo = PyMongo(application)
+db = mongo.db
+
+@application.route('/')
+def index():
+    return jsonify(
+        status=True,
+        message='Welcome to the Dockerized  MongoDB app!'
+    )
+
+@application.route('/todo')
+def todo():
+    _todos = db.todo.find()
+
+    item = {}
+    data = []
+    for todo in _todos:
+        item = {
+            'id': str(todo['_id']),
+            'todo': todo['todo']
+        }
+        data.append(item)
+
+    return jsonify(
+        status=True,
+        data=data
+    )
+
+@application.route('/todo', methods=['POST'])
+def createTodo():
+    data = request.get_json(force=True)
+    item = {
+        'todo': data['todo']
+    }
+    db.todo.insert_one(item)
+
+    return jsonify(
+        status=True,
+        message='To-do saved successfully!'
+    ), 201
+
+if __name__ == "__main__":
+    ENVIRONMENT_DEBUG = os.environ.get("APP_DEBUG", True)
+    ENVIRONMENT_PORT = os.environ.get("APP_PORT", 5000)
+    application.run(host='0.0.0.0', port=ENVIRONMENT_PORT, debug=ENVIRONMENT_DEBUG)

flaskapp/app/requirements.txt

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+Flask==1.1.1
+Flask-PyMongo==2.3.0
+requests==2.22.0

flaskapp/app/wsgi.py

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+from app import application
+
+
+if __name__ == "__main__":
+  application.run()