├── Dockerfile
├── README.md
├── app.py
├── docker-compose.yml
├── init-db.js
└── requirements.txt


/Dockerfile:
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1 | FROM python:3.6
2 | ADD . /app
3 | WORKDIR /app
4 | RUN pip install -r requirements.txt


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/README.md:
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1 | # flask_mongodb_dockerized_app
2 | This code is for illustration to build dockerized Flask + MongoDB app as described in my youtube video below.
3 | 
4 | <p align="center"> 
5 |     <a href="https://youtu.be/RuaKvPq0Fzo" target="_blank">
6 |     <img src="http://img.youtube.com/vi/RuaKvPq0Fzo/0.jpg"></img>
7 |   </a>
8 | </p>
9 | 


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/app.py:
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 1 | from flask import Flask, jsonify
 2 | import pymongo
 3 | from pymongo import MongoClient
 4 | 
 5 | app = Flask(__name__)
 6 | 
 7 | def get_db():
 8 |     client = MongoClient(host='test_mongodb',
 9 |                          port=27017, 
10 |                          username='root', 
11 |                          password='pass',
12 |                         authSource="admin")
13 |     db = client["animal_db"]
14 |     return db
15 | 
16 | @app.route('/')
17 | def ping_server():
18 |     return "Welcome to the world of animals."
19 | 
20 | @app.route('/animals')
21 | def get_stored_animals():
22 |     db=""
23 |     try:
24 |         db = get_db()
25 |         _animals = db.animal_tb.find()
26 |         animals = [{"id": animal["id"], "name": animal["name"], "type": animal["type"]} for animal in _animals]
27 |         return jsonify({"animals": animals})
28 |     except:
29 |         pass
30 |     finally:
31 |         if type(db)==MongoClient:
32 |             db.close()
33 | 
34 | if __name__=='__main__':
35 |     app.run(host="0.0.0.0", port=5000)
36 | 


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/docker-compose.yml:
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 1 | app:
 2 |   build: .
 3 |   command: python -u app.py
 4 |   ports:
 5 |     - "5000:5000"
 6 |   volumes:
 7 |     - .:/app
 8 |   links:
 9 |     - db
10 | db:
11 |   image: mongo:latest
12 |   hostname: test_mongodb
13 |   environment:
14 |     - MONGO_INITDB_DATABASE=animal_db
15 |     - MONGO_INITDB_ROOT_USERNAME=root
16 |     - MONGO_INITDB_ROOT_PASSWORD=pass
17 |   volumes:
18 |     - ./init-db.js:/docker-entrypoint-initdb.d/init-db.js:ro
19 |   ports:
20 |     - 27017:27017
21 | 


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/init-db.js:
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 1 | db = db.getSiblingDB("animal_db");
 2 | db.animal_tb.drop();
 3 | 
 4 | db.animal_tb.insertMany([
 5 |     {
 6 |         "id": 1,
 7 |         "name": "Lion",
 8 |         "type": "wild"
 9 |     },
10 |     {
11 |         "id": 2,
12 |         "name": "Cow",
13 |         "type": "domestic"
14 |     },
15 |     {
16 |         "id": 3,
17 |         "name": "Tiger",
18 |         "type": "wild"
19 |     },
20 | ]);


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/requirements.txt:
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1 | flask
2 | pymongo


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