docker fixups

.dockerignore

+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+*.pyc
+.dockerignore
+Dockerfile
+*.log
+*.sqlite
+*.json
+*.csv
+appsettings.json
+tv_shows.csv
\ No newline at end of file

Dockerfile

-# syntax=docker/dockerfile:1
-
 FROM python:3.9-slim-buster
-
-WORKDIR /flask-docker
+WORKDIR /app
+EXPOSE 80
+EXPOSE 5000
+EXPOSE 8080
+EXPOSE 443
 
 COPY requirements.txt requirements.txt
-RUN pip3 install -r requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
 
 COPY . .
 
-CMD [ "python", "app.py"]
+CMD ["gunicorn", "-w", "4", "app:app_with_args", "-b", "0.0.0.0:5000"]
\ No newline at end of file

app.py

@@ -3,7 +3,7 @@ import os
 import re
 
 import pandas as pd
-from flask import Flask, jsonify, request
+from flask import Flask, jsonify
 from flask_cors import CORS
 from flask_restx import Api, Resource, fields
 from pymongo import MongoClient, errors
@@ -18,7 +18,10 @@ app.config.from_object(__name__)
 # enable CORS
 CORS(app)
 # enable flask_restx
-api = Api(app)
+api = Api(app, version='1.0', title='TV Series Microservice',
+          description='This microservice returns recommendations and a list of shows',
+          default="TV Series", default_label="The TV Series namespace")
+api.documentation_path = "/swagger.json"
 
 
 def _get_value_for_keys(keys, obj, default):
@@ -95,12 +98,19 @@ series_recommendations_model = api.model('SeriesRecommendations', {
     'recommendations': fields.List(fields.Nested(series_info_model))
 })
 
+series_paged_model = api.model('SeriesPaged', {
+    'page': fields.Integer,
+    'shows': fields.List(fields.Nested(series_info_model)),
+    'total_pages': fields.Integer,
+    'total_shows': fields.Integer
+})
+
 
 def initialise_db():
     try:
         # check if appsettings.json exists
         if os.path.isfile('appsettings.json'):
-            uri = pd.read_json('appsettings.json')['ConnectionStrings'].values[0]
+            uri = pd.read_json('appsettings.json')['ConnectionString'].values[0]
             # check if connection string is empty
             if uri:
                 pass
@@ -276,9 +286,10 @@ class SeriesInfoById(Resource):
 @api.route('/api/tv_shows/<int:page>')
 @api.doc(responses={200: 'application/json'})
 class TvShows(Resource):
+    @api.marshal_with(series_paged_model)
     def get(self, page):
         # Get the page number from the request arguments, defaulting to 1 if not provided
-        #page = int(request.args.get('page', 1))
+        # page = int(request.args.get('page', 1))
 
         # Define the number of shows to display per page
         shows_per_page = 20
@@ -319,14 +330,24 @@ class TvShows(Resource):
             'shows': response_data
         }
 
-        return jsonify(response)
+        return response
 
 
-if __name__ == '__main__':
+def create_app():
     global collection
     collection = initialise_db()
-    # requires connection to MongoDB collection in order for Flask to run
-    if collection != None:
-        app.run(host='0.0.0.0', port=5000, debug=False)
-    else:
+    if collection is None:
         print('Flask server not run as a connection to the MongoDB collection could not be established.')
+        exit(1)
+
+    return app
+
+
+def app_with_args(environ, start_response):
+    create_app()
+    return app(environ, start_response)
+
+
+if __name__ == '__main__':
+    create_app()
+    app.run(host='0.0.0.0', port=5000, debug=False)

requirements.txt

-# Automatically generated by https://github.com/damnever/pigar.
-
-Flask==2.1.2
+Flask==2.2.2
 Flask-Cors==3.0.10
 flask-restx==1.1.0
-pandas==1.4.2
+pandas==2.0.1
 pymongo==4.3.3
 scikit-learn==1.1.2
 spacy==3.4.3
+gunicorn==20.1.0
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